112 本周新文
20 覆盖期刊
20 中文
92 英文

Economic History Review Economic History Review

1 篇 ▼

银行与经济:来自1966年爱尔兰银行罢工的证据

Banks and the economy: Evidence from the Irish bank strike of 1966
本文研究1966年爱尔兰银行罢工的宏观经济影响,该罢工导致主要商业银行关闭3个月。我们收集了多种新证据,如高频宏观数据、经济预测、微观数据和叙事性资料。我们的发现表明,银行罢工与经济活动短缺相关,打断了十年的强劲增长。定性证据描绘了家庭和企业应对信贷紧缩、流动性冲击和交易成本上升的困境。这一案例研究凸显了银行对经济表现的重要性。
Abstract This paper studies the macroeconomic impact of the Irish bank strike of 1966, which led to the closure of the major commercial banks for 3 months. We collect a variety of new evidence, such as high‐frequency macro data, economic forecasts, micro data and narrative sources. Our findings suggest that the bank strike was associated with a shortfall in economic activity that punctuated a decade of robust growth. The qualitative evidence depicts the struggles of households and firms managing a credit crunch, a liquidity shock, and rising transaction costs. This case study highlights the importance of banks for economic performance.
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Energy Economics Energy Economics

10 篇 ▼

成熟与新兴能源市场中的动态相互依赖与冲击传导:对基准形成和区域市场一体化的启示

Dynamic interdependencies and shock transmission in mature and emerging energy markets: implications for benchmark formation and regional market integration
摘要:本研究考察六个全球主要石油和天然气合约之间的跨市场冲击传导和基准异质性:布伦特原油期货、WTI原油期货、上海国际能源交易中心(INE)原油期货、日韩标杆(JKM)LNG期货、IPE天然气期货和NYMEX天然气期货。我们使用一个多方法框架,结合方向性关联、Diebold-Yilmaz广义溢出指数、脉冲响应分析、动态时间规整聚类和俱乐部收敛,分析市场在地理范围、发展阶段和制度背景方面的结构性差异如何塑造2018年3月至2023年12月期间冲击传播的方向和持续性。结果表明,布伦特原油期货是整个系统中的主导净冲击发出者,而上海INE和日韩标杆则持续作为净接收者吸收外部冲击,反映出限制其价格发现能力的区域分割和基础设施约束。识别出三个不同的市场集群,石油基准与区域天然气合约分开分组;俱乐部收敛分析揭示,尽管短期存在异质性,所有市场存在共同长期均衡。这些发现对全球石油和天然气综合体中的基准形成、对冲策略和区域市场一体化政策具有启示。
This study examines cross-market shock transmission and benchmark heterogeneity across six major global oil and natural gas contracts: Brent crude oil futures, WTI crude oil futures, Shanghai INE crude oil futures, the Japan-Korea Marker LNG futures, IPE natural gas futures, and NYMEX natural gas futures. Using a multi-method framework combining directional connectedness, the Diebold-Yilmaz generalized spillover index, impulse response analysis, dynamic time warping clustering, and club convergence, we analyze how structural differences across markets in terms of geographic scope, development stage, and institutional context shape the direction and persistence of shock propagation over the period March 2018 to December 2023. Results show that Brent crude oil futures act as the dominant net transmitter of shocks across the system, while Shanghai INE and the Japan-Korea Marker consistently absorb external shocks as net receivers, reflecting regional segmentation and infrastructure constraints that limit their price discovery capacity. Three distinct market clusters are identified, with oil benchmarks grouping separately from regional gas contracts, and club convergence analysis reveals a common long-run equilibrium across all markets despite short-run heterogeneity. These findings carry implications for benchmark formation, hedging strategy, and regional market integration policy in the global oil and natural gas complex.
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行政区划调整与生态效应:来自中国的证据

Administrative division adjustment and ecological effects: Evidence from China
摘要:随着全球城市化加速,行政边界改革的生态后果仍鲜为人知。本研究利用中国的“撤县设区”改革作为准自然实验,使用2008年至2020年的县级面板数据和交错双重差分设计,估计其对植被覆盖的影响。该改革显著降低了当地植被覆盖,而在坡度更陡、地形起伏更大、设有自然保护区或财政支出更高的县中,影响有所减弱。机制分析揭示出一个以发展为导向的政治经济渠道:改革加剧社会经济活动,进而通过建成区扩张和耕地收缩重塑土地利用。来自一级土地市场的证据印证了这一渠道,表明改革主要通过商服和工业用地出让增加一级土地出让收入。这些发现强调需要将生态和财政评估纳入改革审批程序,并将行政升级与土地供应扩张脱钩,以使制度转型不以长期环境质量为代价。
As urbanization accelerates worldwide, the ecological consequences of administrative boundary reforms remain poorly understood. This study exploits China's County-to-District reform as a quasi-natural experiment to estimate its impact on vegetation cover, using a county-level panel from 2008 to 2020 and a staggered difference-in-differences design. The reform significantly reduces local vegetation cover, with attenuated effects in counties characterized by steeper slopes, greater topographic relief, designated nature reserves, or higher fiscal expenditure. Mechanism analysis reveals a development-oriented political economy channel: the reform intensifies socioeconomic activity, which in turn reshapes land use through built-up expansion and cropland contraction. Evidence from the primary land market corroborates this channel, showing that the reform increases primary land conveyance revenue mainly through commercial and industrial land conveyances. These findings underscore the need to incorporate ecological and fiscal assessments into reform approval procedures and to decouple administrative upgrading from land supply expansion, so that institutional transitions do not come at the expense of long-term environmental quality.
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社论:能源韧性与地缘政治风险

Editorial: Energy resilience and geopolitical risks
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企业气候风险感知与劳动收入份额:来自中国的经验证据

Corporate climate risk perception and labor income share: Empirical evidence from China
本研究利用2009年至2023年中国A股上市公司数据,揭示企业气候风险感知通过影响雇佣调整和资本深化,显著降低劳动收入份额。转型风险感知主要通过裁员和劳动力重组发挥作用,而物理风险感知主要降低平均工资;两类风险感知都会提高资本—劳动比。该影响在劳动密集型、高碳行业、灾害多发地区以及大型、高杠杆企业中更强,而在政府—市场关系更整合的地方较弱。此外,感知风险越高,往往越会通过提高高管薪酬份额并持续降低普通员工薪酬份额,扩大企业内部不平等。这些发现凸显企业气候风险感知是劳动收入份额下降的新驱动因素,有助于理解气候变化如何在微观层面影响收入分配。
This study, utilizing data from Chinese A-share listed companies between 2009 and 2023, reveals that corporate perceptions of climate risk significantly lower the labor income share by influencing employment adjustments and capital deepening. Transition risk perception operates mainly through employment reductions and workforce restructuring, while physical risk perceptions predominantly decrease average wages; both types increase the capital-labor ratio. The impact is stronger in labor-intensive, high‑carbon industries, disaster-prone areas, and large, highly leveraged firms, but less so where government-market relations are more integrated. Additionally, higher perceived risks tend to widen internal inequality by increasing executives' compensation share and continuously reducing that of regular employees. These findings highlight corporate climate risk perception as a new driver of declining labor income share, shedding light on how climate change influences income distribution at the micro level.
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孤立还是互联?农村能源规划中蜂群电气化的均衡框架

Isolated or interconnected? An equilibrium framework for swarm electrification in rural energy planning
蜂群电气化——将孤立的分散式能源系统互联以实现本地能源共享——可能加速农村电气化,但仍在很大程度上缺席于那些仍优先考虑太阳能家庭系统和集中式微电网的主要倡议。为确定群体互联何时最合理,我们开发了一个技术经济决策支持框架,引入三个异质性指数:预算异质性(BHI)、需求形态多样性(SDI)和需求峰值多样性(PDI)。我们利用这些指数研究异质性如何在蜂群电网情境下提高互联价值。我们将模型输出转化为政策相关指标,例如避免的投资和增加的社会福利,并将其合并为单一收益比(BR)。使用市场及其他均衡情境中常见的混合互补问题(MCP)模型,我们在两种竞争假设下模拟分散式能源交易:完全竞争和古诺竞争,从而内生产生电价水平。我们还纳入一个价格外生固定的中央规划基准。马达加斯加案例研究的结果表明,异质性重塑了互联的经济逻辑。需求差异通过更有效配置和减少过度建设,带来至少3%的避免投资,而互补的负荷曲线使能源共享增加五倍以上。预算异质性占主导,通过在纳米电网之间重新分配投资,带来十五倍以上的能源共享。不同市场设计凸显出盈利性与可负担性之间的权衡:在以成本回收为导向的设定下,最短1.5年的投资回收期达到最大,但会施加更高电价,并凸显需要与能源正义目标相一致的治理机制。该框架为更具适应性和社会包容性的农村电气化提供了实践指导。
Swarm electrification–the interconnection of isolated decentralized energy systems for local energy sharing– could accelerate rural electrification, yet it remains largely absent from major initiatives that still prioritize solar home systems and centralized mini-grids. To determine when swarm interconnection is most justified, we develop a techno-economic decision-support framework, introducing three heterogeneity indexes: budget heterogeneity (BHI), demand shape diversity (SDI), and demand peak diversity (PDI). We use these indexes to investigate how heterogeneity increases the value of interconnection in the swarm-grid setting. We translate model outputs into policy-relevant indicators, e.g., avoided investment and added social welfare, and combine these into a single benefit ratio (BR). Using mixed complementarity problem (MCP) models–common in market and other equilibrium settings–we simulate decentralized energy trading under two competitive assumptions: perfect competition and Cournot competition, thus deriving tariff levels endogenously. We also include a central-planning benchmark where prices are exogenously fixed. Results from a Madagascar case study indicate that heterogeneity reshapes the economic rationale for interconnection. Demand differences yield at least 3% avoided investment through more efficient allocation and reduced oversizing, and complementary load-profiles increase energy sharing more than fivefold. Budget heterogeneity dominates, inducing over fifteen times more energy sharing by redistributing investments across nanogrids. Different market designs highlight a profitability-affordability trade-off: payback periods as short as 1.5 years are maximized under cost-recovery-oriented settings, imposing higher tariffs and underscoring the need for governance mechanisms aligned with energy-justice objectives. This framework offers practical guidance for a more adaptive and socially-inclusive rural electrification.
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碳排放强度与特质波动率:来自印度企业的证据

Carbon emissions intensity and idiosyncratic volatility: Evidence from Indian firms
气候变化已成为日益重要的金融风险来源,引发人们对碳排放如何在股票市场中被定价的越来越多的兴趣。尽管文献不断扩展,但来自新兴市场的企业层面证据仍然有限。本文考察2009—2023年间印度上市公司企业碳排放强度是否能够预测未来的特质股票收益波动率。我们发现,CO2排放强度较高的企业——以范围1和范围2二氧化碳当量(CO2e)排放除以营业收入衡量——表现出显著更高的下一期特质股票收益波动率。具体而言,排放强度每增加一个标准差,年化特质波动率增加1.32个百分点,相当于样本均值的4.6%。这一关系主要由直接排放(范围1)而非购买能源排放(范围2)驱动,并且在受印度“执行、成就与交易”(PAT)计划覆盖的企业以及经济政策不确定性升高时期更强,但在使用可再生能源的企业中较弱。我们还发现证据表明,股票非流动性是碳排放影响未来企业特有股票收益风险的潜在渠道。在替代排放强度和风险度量、样本选择校正、领先检验、工具变量分析以及其他稳健性检验下,结果仍然稳健。总体而言,我们的发现表明,在新兴股票市场中,企业层面碳排放是企业特有股票收益风险的重要决定因素。
Climate change has become an increasingly important source of financial risk, attracting growing interest in how carbon emissions are priced in equity markets. Although the literature is expanding, firm-level evidence from emerging markets remains limited. In this paper, we examine whether corporate carbon emissions intensity predicts future idiosyncratic stock return volatility among Indian listed firms over the period 2009–2023. We find that firms with higher CO2 emissions intensity, measured as Scope 1 and Scope 2 carbon-dioxide-equivalent (CO2e) emissions scaled by revenue, exhibit significantly higher one-period-ahead idiosyncratic stock return volatility. Specifically, a one-standard-deviation increase in emissions intensity increases annualised idiosyncratic volatility by 1.32 percentage points, representing 4.6% of the sample mean. The relationship is driven primarily by direct (Scope 1) rather than purchased energy (Scope 2) emissions and is stronger for firms covered by India’s Perform, Achieve and Trade (PAT) scheme and during periods of elevated economic policy uncertainty, but weaker for firms that use renewable energy. We also find evidence that stock illiquidity is a potential channel through which carbon emissions influence future firm-specific stock return risk. The results remain robust to alternative measures of emissions intensity and risk, sample-selection corrections, a lead test, an instrumental-variables analysis, and additional robustness checks. Overall, our findings suggest that firm-level carbon emissions are an important determinant of firm-specific stock return risk in an emerging equity market.
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气候变化经济影响的全经济范围与国际溢出效应

Economy-wide and international spillovers of the economic impacts of climate change
对气候变化经济后果的估计差异很大,并受到方法选择的影响。在此,我们利用全球经济的结构模型,探索量化经济损失的不同方法。我们按地区、要素和部门分解宏观经济结果,以揭示自上而下的总体生产率冲击与自下而上的影响渠道表示之间的差异。尽管总体经济结果具有可比性,但在分布尾部,不同方法下的地区特定结果差异显著,这由国际贸易反应的分歧所驱动。在允许生产和贸易流进行经济适应的情况下,我们的发现表明,相对于国内影响之和,国际溢出效应使气候变化造成的全球福利损失提高1%—7%。总体而言,我们的结果表明,对气候变化影响渠道进行分解表示,对于增进对总体经济结果的理解,以及为考虑国际贸易溢出效应的有效适应政策提供信息,十分重要。
Estimates of the economic consequences of climate change diverge widely and are influenced by methodological choices. Here, we explore different approaches to quantifying economic damages by leveraging a structural model of the global economy. We decompose macroeconomic outcomes by region, factor, and sector to reveal differences between top-down aggregate productivity shocks and a bottom-up representation of impact channels. While aggregate economic outcomes are comparable, region-specific results differ substantially between approaches at the tails of the distribution, driven by divergent international trade responses. Allowing for economic adaptation in production and trade flows, our findings indicate that international spillovers raise global welfare losses from climate change by 1%–7% relative to the sum of domestic impacts. Overall, our results suggest that a disaggregated representation of climate change impact channels is important for improving the understanding of aggregate economic outcomes and for informing effective adaptation policies that account for international trade spillovers.
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夏令时(DST)对伊朗电力消费的影响

The impact of Daylight Saving Time (DST) on electricity consumption in Iran
夏令时(DST)使钟表时间相对于日光和日常活动发生偏移,对电力消费的影响并不明确:傍晚日光延长可能降低照明需求,但也可能影响制冷、供暖以及与活动相关的负荷。本文利用2015—2021年全国逐小时负荷数据、天气和日历控制变量,以及围绕法律规定的春季拨快和秋季拨回转换日期的时间断点回归(RDiT)设计,评估DST对伊朗电力消费的影响。我们区分局部边界效应与整个DST生效期的季节平均日效应。全国季节平均日ATE为正,对应DST期间全国日电力消费增加2.24%,但在Newey–West推断下于5%水平上不显著。相比之下,边界RDiT估计显示出显著的局部不连续:春季拨快转换与残差化电力消费增加3.87%相关,而按DST标准化的秋季拨回估计表明,DST相对于标准时间使消费下降11.14%。这些转换特定效应不应相互抵消以推断全季效应。异质性分析表明,效应因电价时段和消费者类别而异,高峰时段春季拨快响应更强,而RECs和EDCs的秋季拨回响应不同。总体而言,结果并不支持对伊朗DST作简单的节电解释;估计效应取决于估计目标、需求时点和消费者构成。
Daylight Saving Time (DST) shifts clock time relative to daylight and routine activities, with ambiguous effects on electricity consumption: later evening daylight may reduce lighting demand but may also affect cooling, heating, and activity-related load. This paper evaluates the effect of DST on electricity consumption in Iran using nationwide hourly load data from 2015 to 2021, weather and calendar controls, and a Regression Discontinuity in Time (RDiT) design around legally fixed spring-forward and fall-back transition dates. We distinguish local boundary effects from the season-average daily effect over the full DST-active period. The national season-average daily ATE is positive, corresponding to a 2.24% increase in national daily electricity consumption during DST, but is not statistically significant at the 5% level under Newey–West inference. In contrast, the boundary RDiT estimates reveal significant local discontinuities: the spring-forward transition is associated with a 3.87% increase in residualized electricity consumption, while the DST-normalized fall-back estimate indicates an 11.14% decrease under DST relative to standard time. These transition-specific effects should not be netted out to infer the full-season effect. Heterogeneity analyses show that effects vary across tariff periods and consumer categories, with stronger spring-forward responses during on-peak hours and different fall-back responses for RECs and EDCs. Overall, the results do not support a simple electricity-saving interpretation of DST in Iran; the estimated effect depends on the estimand, timing of demand, and consumer composition.
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基于非因果方法的泡沫检测及其在绿色泡沫中的应用

Bubble detection with application to green bubbles: A noncausal approach
本文提出一种基于混合因果与非因果自回归过程及其在爆炸性阶段尾部过程表示的泡沫检测新方法。与传统将泡沫定义为非平稳且暂时爆炸性过程的观点不同,我们采用价格服从严格平稳过程的视角,并将泡沫视为其非线性动态的内在组成部分。所提方法提供了一个用于检测泡沫并衡量其持续时间的泡沫指标。我们将该策略应用于研究可再生能源投资领域被称为“绿色泡沫”的现象。
This paper introduces a new approach for bubble detection based on mixed causal and noncausal autoregressive processes and their tail process representation during an explosive episode. Departing from traditional definitions of bubbles as nonstationary and temporarily explosive processes, we adopt a perspective in which prices are assumed to follow a strictly stationary process, with the bubble considered an intrinsic component of its nonlinear dynamics. The proposed approach provides a bubble indicator for detecting bubbles and measuring their duration. We implement our strategy to investigate the phenomenon called the “green bubble” in the field of renewable energy investment.
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中国特高压输电线路的价值评估:生产率收益、宏观经济溢出与高回报

Valuing the UHV transmission lines in China: productivity gains, macroeconomic spillovers, and high returns
特高压(UHV)输电基础设施是中国解决电力供需空间错配战略的核心。鉴于其巨大的资本需求,系统评估特高压项目的经济影响和成本效益至关重要。现有文献主要强调对特定经济结果的因果推断,对总体经济贡献的评估有限。为弥补这一空白,我们通过生产率提升机制量化特高压投资的宏观经济效应。使用具有时变处理的倾向得分匹配—双重差分(PSM-DID)方法,我们首先基于中国企业层面数据估计特高压引致的公司生产率收益。随后将这些微观层面效应嵌入多区域、多部门一般均衡模型,通过区域间贸易和部门间联系捕捉直接效应与空间溢出效应。结果表明:(1)特高压项目使企业生产率平均提高3.62%;(2)特高压基础设施使全国GDP提高约0.78%,其中包括未直接建设特高压省份的0.14%增长;(3)假设贴现率为7%、寿命为30年,特高压投资产生268%的宏观经济回报。我们的发现凸显了特高压扩张的宏观经济价值,并为未来投资优先次序提供经验支持。
Ultra-high voltage (UHV) transmission infrastructure is central to China's strategy for resolving spatial mismatches in electricity supply and demand. Given its substantial capital requirements, a systematic evaluation of UHV projects' economic impact and cost-effectiveness is critical. Existing literature predominantly emphasizes causal inference on specific economic outcomes, with limited assessment of aggregate economic contributions. To address this gap, we quantify the macroeconomic effects of UHV investments through a productivity enhancement mechanism. Using a propensity score matching difference-in-differences (PSM-DID) approach with time-varying treatment, we first estimate UHV-induced firm productivity gains based on firm-level data from China. These micro-level effects are then embedded into a multi-regional, multi-sectoral general equilibrium model, capturing direct and spatial spillover effects via interregional trade and intersectoral linkages. Results indicate: (1) UHV projects elevate firm productivity by 3.62% on average; (2) UHV infrastructure raises national GDP by approximately 0.78%, including a 0.14% gain in provinces without direct UHV construction; (3) Assuming a 7% discount rate and a 30-year lifespan, UHV investments yield a 268% macroeconomic return. Our findings highlight the macroeconomic value of UHV expansion and provide empirical support for future investment prioritization.
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Energy Policy Energy Policy

3 篇 ▼

连贯、可信且全面,还是分散而无效?地缘政治变化期间挪威的能源贫困政策组合

Coherent, credible and comprehensive or diffuse and ineffective? The energy poverty policy mix in Norway during geopolitical changes
与许多欧盟成员国不同,挪威缺乏对能源贫困的明确定义以及有针对性的缓解政策。由于早期利用水电属性,该国在历史上与能源充裕相联系,这为研究地缘政治动荡中欧洲转向能源安全所带来的变化影响及其对家庭层面的后果提供了有利情境。我们报告了首个直接在挪威开展此类研究的工作,分析其能源贫困政策组合。政策组合文献将连贯性、可信性和全面性视为有效性的理想特征。基于对相关政策进行案头研究自上而下的方法,以及通过专家焦点小组讨论自下而上的方法,我们识别并解释了挪威分散的能源贫困政策组合的含义。相关措施通过短期民粹主义政策和错误引导的支持来针对症状而非根本原因,其方式可能加剧不平等,同时未能改善脆弱家庭的能源贫困。尽管挪威更广泛的福利体系提供了社会保护,但缺乏能源贫困定义、机构责任模糊以及政策措施连贯性薄弱,限制了政策组合的有效性,也未能为其可信且全面的处理提供坚实基础。
Unlike numerous European Union member states, Norway lacks an explicit definition of energy poverty and targeted alleviation policies. Historically associated with energy abundance thanks to its early capitalisation on hydropower attributes, the country offers a fertile context to investigate the changing impact of Europe's turn towards energy security amid geopolitical turbulence and resultant impacts at household level. We report on the first study to address this directly in Norway by analysing its energy poverty policy mix. The policy mix literature has identified coherence, credibility and comprehensiveness as desirable aspects for effectiveness. Based on a top-down approach through a desk study of relevant policies, and a bottom-up approach using an expert focus group discussion, we identify and explain the implications of Norway's diffuse energy poverty policy mix. Measures address symptoms rather than underlying causes through short-term populist policies and misdirect support in ways that risk increasing inequity while failing to ameliorate energy poverty for vulnerable households. While Norway's broader welfare system offers social protection, the lack of a definition of energy poverty, ambiguous institutional responsibility, and weak coherence of policy measures limit policy mix effectiveness, while failing to furnish a firm base for its credible and comprehensive treatment.
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“一带一路”倡议国家能源贫困的俱乐部收敛:中国对外直接投资的作用

Club convergence in energy poverty of Belt and Road Initiative countries: The role of China's outward foreign direct investment
我们使用 2005 至 2023 年 83 个“一带一路”倡议(BRI)国家的面板数据,考察能源贫困的收敛动态,以判断各国是否正在摆脱能源贫困陷阱,以及中国对外直接投资(OFDI)在收敛过程中的作用。我们发现,尽管传统收敛检验确认存在追赶效应,Phillips-Sul 俱乐部收敛模型在 BRI 国家中识别出五个不同俱乐部:1)严重能源贫困陷阱;2)高能源贫困且收敛缓慢;3)中等能源贫困且改善迟缓;4)低能源贫困且稳步推进;5)最低能源贫困前沿且收敛最快。此外,中国在 BRI 国家基础设施和经济增长部门的 OFDI 促进了较低能源贫困收敛俱乐部的形成。以基础设施为导向的 OFDI 在能源贫困最严重和最不严重的俱乐部中尤其有效,而以市场为导向的 OFDI 则在所有俱乐部中表现出更一致、更广泛的效果。差异化策略和加强多边协调对于最大化减贫成果至关重要。
Using panel data of 83 Belt and Road Initiative (BRI) countries from 2005 to 2023, we investigate the convergence dynamics of energy poverty to determine whether countries are escaping the energy poverty trap and the role of China's outward foreign direct investment (OFDI) in the convergence process. We find that while traditional convergence tests confirm a catch-up effect, the Phillips-Sul club convergence model identifies five distinct clubs among BRI countries: 1) severe energy poverty trap; 2) high energy poverty with slow convergence; 3) medium energy poverty with sluggish improvement; 4) low energy poverty with steady progress; 5) lowest energy poverty frontier with the fastest convergence. Furthermore, China's OFDI in infrastructure and economic growth sectors within BRI countries promotes the formation of lower energy poverty convergence clubs. Infrastructure-oriented OFDI is particularly effective in the most severe and the least energy poverty clubs, while market-oriented OFDI demonstrates a more consistent and widespread effect across all clubs. Differentiated strategies and strengthened multilateral coordination are essential to maximize poverty reduction outcomes.
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克服水电混合项目部署的监管障碍

Overcoming regulatory barriers to deployment of hydropower hybrids
将现有水电站与储能或其他发电形式混合,可以扩展现有水电资产提供的灵活性、可靠性服务和经济价值。然而,许可延误和直接监管成本可能造成障碍。迄今为止在美国,已有九个水电混合项目获得联邦能源监管委员会(FERC)批准,总共开发了十三个水电混合项目。对这几个案例及类似项目的分析表明,监管延误在近期有所增加。虽然水电混合项目尚未受到最严重延误的影响,但出现大幅延误(>500天)的风险已显著上升。观察到的最严重延误为762天,这实际上使项目成本最高增加28%。FERC可以通过《国家环境政策法》(NEPA)下更强有力且更广泛的分类豁免,以及狭义界定FERC对混合资产的管辖权,来降低监管成本和大幅延误风险。对典型混合项目给予更广泛的分类豁免将减少跨项目的重复工作,并简化时间线风险最大的流程部分。狭义界定FERC对二次储能或发电资产的管辖权将提高流程确定性并简化许多项目。例如,不影响水电运行且已在州或地方层面经过环境审查的混合项目,可能不需要联邦监管来确保负责任的开发和运营。这将显著降低许可方的成本和大幅延误风险,而不会带来负面的环境或社会结果。
Hybridizing existing hydropower plants with energy storage or other generation can expand the flexibility, reliability services, and economic value provided by existing hydropower assets. However, permitting delays and direct regulatory costs can create barriers. So far in the US, nine hydro-hybrids have received Federal Energy Regulatory Commission (FERC) approval and thirteen total hydro-hybrids have been developed. Analyzing these nine cases along with similar projects shows that regulatory delays have increased recently. While hydro-hybrids have not yet been affected by the worst of the delays, the risk of large delays ( > 500 days) has increased significantly. The worst delay observed was 762 days, which effectively increased the project cost by up to 28%. FERC could reduce this barrier by lowering regulatory costs and the risk of large delays with a stronger and broader categorical exclusion under the National Environmental Policy Act (NEPA) and by narrowly defining FERC’s jurisdiction over hybrid assets. A broader categorical exclusion for typical hybridization projects would reduce repeated work across projects and streamline the part of the process that carries the most timeline risk. Narrowly defining FERC’s jurisdiction over secondary storage or generation assets would increase certainty about the process and streamline many projects. For example, hybridization projects that do not affect hydropower operations and already go through environmental reviews at the state or local level may not need federal regulation to ensure responsible development and operation. This would significantly reduce the cost and risk of large delays to licensees without negative environmental or social outcomes.
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Explorations in Economic History Explorations in Economic History

2 篇 ▼

生命早期逆境对中国1959—1961年大饥荒期间亲社会行为的长期影响

The long-run impact of early-life adversity on prosocial behavior in China’s 1959–1961 Great Famine
我们通过利用幼年时期对中国大饥荒的外生暴露,研究亲社会行为的早期起源。使用基于队列的倍差法,我们发现,在饥荒开始时年龄介于1至3岁之间而暴露于饥荒的个体,在六十年后表现出显著更高的慈善捐赠。这一效应对于在饥荒期间有兄弟姐妹的个体尤其强烈。我们提供提示性证据表明,家庭环境和家庭内部互动的机会可能促成了这一模式,同时几乎未发现收入或宗教虔信可作为替代解释的支持。这些发现凸显了家庭互动在培育利他主义中的作用,尤其是在生命早期逆境背景下。
We study the early origins of prosocial behavior by using exogenous exposure to the Great Chinese Famine during early childhood. Using a cohort-based difference-in-differences approach, we find that individuals exposed to the famine between ages 1 and 3 years at its onset exhibit significantly higher charitable donations six decades later. This effect is especially strong for individuals who had siblings during the famine. We provide suggestive evidence that the family environment and opportunities for intra-household interaction may have contributed to this pattern, while finding little support for income or religiosity as alternative explanations. These findings highlight the role of family interactions in fostering altruism, especially in the context of early-life adversity.
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奥斯曼帝国伊斯坦布尔的代际流动性:来自法庭记录的证据

Intergenerational mobility in Ottoman Istanbul: Evidence from court records
利用1513—1884年间超过266,000条奥斯曼法庭登记记录,我们衡量了伊斯坦布尔近四个世纪的代际流动性。荣誉称号——通过与遗嘱认证财富记录相互验证——为我们提供了社会经济地位的衡量指标。头衔地位的持续性呈现下降—上升—下降的模式。当德夫希尔梅征募和进入宗教学校的竞争将外来者带入统治阶层时,这种持续性下降。1650年至1800年间,当大家族成为社会再生产的主要场所时,它上升,并在1826年后的改革之后再次下降。同一时期,头衔类别与父亲不同的儿子所占比例大幅上升。相比之下,父子财富排名相关性在1650—1800年间上升,并在1800年后下降。对有头衔的父子配对进行分解有助于调和这些模式。1650—1800年间,精英与非精英之间的边界变得更难跨越,而军事/行政分支与宗教/司法分支之间的流动则保持相对稳定。流动性的增加主要来自无头衔父亲的儿子获得头衔,而不是精英儿子失去头衔。因此,有头衔人口的扩张,与一个在大约一个半世纪里变得越来越世袭化的精英阶层同时发生。这是中东地区首个大样本、跨多个世纪的代际流动性序列。
Using more than 266,000 Ottoman court-register observations spanning 1513–1884, we measure intergenerational mobility in Istanbul over nearly four centuries. Honorific titles, validated against probate wealth records, provide our measure of socioeconomic status. Persistence in title status follows a fall–rise–fall pattern. It declined as the devşirme levy and competition for admission to religious schools brought outsiders into the ruling class. It increased between 1650 and 1800, when great households became the main setting for social reproduction, and declined again after the post-1826 reforms. Over the same period, the share of sons in a different title category than their father rose substantially. In contrast, the father–son wealth-rank correlation rose during 1650–1800 and declined after 1800. A decomposition of titled father–son pairs helps reconcile these patterns. The boundary between the elite and the non-elite became more difficult to cross during 1650–1800, while movement between the military/administrative and religious/judicial branches remained relatively stable. The increase in mobility came primarily from sons of untitled fathers acquiring titles, rather than from elite sons losing them. Thus, the expansion of the titled population occurred alongside an elite that became increasingly hereditary for roughly a century and a half. This is the first large-sample, multi-century series on intergenerational mobility in the Middle East.
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International Economic Review International Economic Review

3 篇 ▼

对“人力资本作为自动化的驱动因素:来自中国高校扩招的理论与证据”的讨论

Discussion of “Human Capital as a Driver of Automation: Theory and Evidence from China's College Expansion”
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企业投资的分位数模型

A Quantile Model of Firm Investment
企业厌恶风险吗?我们提出一个不确定性下的企业投资动态模型,通过分位数偏好刻画企业的风险态度。企业最大化其现值,现值为当前利润和投资加上其下一期价值的分位数贴现值。该模型意味着,企业的投资政策使资本边际成本等于未来边际利润贴现现值的分位数。因此,投资直接取决于企业的风险态度。使用分位数投资模型导出的欧拉方程进行实证估计,发现了下行风险厌恶的证据。
ABSTRACT Are firms risk averse? We propose a dynamic model of firm investment under uncertainty that captures firms' risk attitudes through quantile preferences. The firm maximizes its present value, defined as current profits and investment plus the discounted value of the ‐quantile of its value next period. The model implies that the firm's investment policy equates the marginal cost of capital with the ‐quantile of the discounted present value of future marginal profits. Therefore, investment depends directly on the firm's risk attitude. Empirical estimations using the Euler equation derived from the quantile investment model reveal evidence of downside risk aversion.
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对“连通性与选择性农村迁移”的讨论

Discussion of “Connectivity and Selective Rural Migration”
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Journal of Banking & Finance Journal of Banking & Finance

2 篇 ▼

文化信念与股票价格:来自水星逆行占星信念的证据

Cultural Beliefs and Equity Prices: Evidence from Astrological Belief in Mercury Retrograde
我们表明,占星术——一种没有科学依据的信念——会影响全球股票价格。我们重点关注一种广泛持有的信念,即水星逆行会对财务收益产生不利影响。利用48个国家的股票市场指数,我们发现,水星逆行期间股票市场年收益率比其他时期低3.47%。这一效应可由基于文化的投资者信念渠道解释:持有该信念的投资者在水星逆行期间对股票变得更加悲观,从而压低市场情绪和回报。我们表明,各国在受古希腊文化影响程度上的差异,与投资者对水星逆行的信念异质性相关。与投资者信念渠道一致,当基本面价值更难主观评估时,以及在其市场对情绪更敏感的国家,该效应更强。在股票收益横截面中,投机端为空头(多头)的异象在水星逆行期间获得更高(更低)的收益。
We show that astrology—a belief without scientific grounding—impacts global equity prices. We focus on a widely held belief that Mercury Retrograde adversely affects financial gain. Using 48 countries’ stock market indices, we find that stock market returns are 3.47% lower annually during Mercury Retrograde periods than in other periods. This effect can be explained by a culture-based investor belief channel: belief-holding investors become more pessimistic about equities during retrograde periods, lowering sentiment and returns. We show that cross-country differences in exposure to ancient Greek culture are associated with heterogeneity in investors’ belief in Mercury Retrograde. Consistent with the investor belief channel, the effect is stronger when fundamental value is more subjective to assess, and in countries whose markets are more sentiment-sensitive. In the cross-section of stock returns, anomalies for which the speculative leg is the short (long) leg experience higher (lower) returns during retrograde periods.
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名人代言对加密货币的影响

The effect of celebrity endorsements on crypto
我们研究名人代言如何在已有价格和尚未形成价格的两种情境中影响加密货币市场。利用手工收集的2013年至2025年名人代言数据集,我们表明,对已交易代币的代言会产生短暂的价格反应并迅速消退,这与注意力冲击而非信息揭示相一致。随后,我们考察对实用型代币ICO的代言,发现代言可以替代预售、支持更大的融资目标,并与大幅增加的资金募集相关。尽管有这些结果,被代言的ICO事后表现更弱,欺诈发生率更高,尤其是当代言人缺乏相关领域专业知识时。总体而言,名人代言似乎能够扩大注意力和资本形成,但并不能可靠地传递高质量信号。
We study how celebrity endorsements affect cryptocurrency markets across settings with and without established prices. Using a hand-collected dataset of celebrity endorsements from 2013 to 2025, we show that endorsements of already trading tokens generate short-lived price responses that dissipate quickly, consistent with attention shocks rather than information revelation. We then examine endorsements of utility-token ICOs and find that endorsements substitute for pre-sales, support larger fundraising targets, and are associated with substantially greater capital raised. Despite these outcomes, endorsed ICOs exhibit weaker ex-post outcomes and a higher incidence of fraud, especially when the endorser lacks domain-relevant expertise. Overall, celebrity endorsements appear to scale attention and capital formation without reliably signaling high quality.
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Journal of Comparative Economics Journal of Comparative Economics

3 篇 ▼

地缘政治冲击与欧洲家庭财务困境:俄乌战争

Geopolitical shocks and household financial distress in Europe: The Russia–Ukraine war
本文考察一场规模与俄乌战争爆发相当的重大地缘政治风险冲击对五个欧洲国家家庭财务困境的影响。我们结合VAR、家庭调查数据和理论洞见,构建宏观—微观模拟,以量化此类冲击如何影响家庭资产负债表。VAR刻画了地缘政治风险飙升的宏观经济效应,我们利用HFCS将其应用于家庭层面数据。我们发现,该冲击与通胀上升、货币政策收紧、抵押贷款利率上升以及房价下跌相关。我们的模拟表明,这些动态会显著加剧财务困境,且各国之间存在差异。我们纳入内生消费反应,并表明由利率暴露、通胀和住房财富驱动的调整在塑造家庭韧性方面发挥关键作用。我们还发现,年轻家庭和低收入家庭在冲击后倾向于增加消费,从而加剧其财务脆弱性。
This paper examines the impact of a major geopolitical risk shock, comparable in scale to the outbreak of the Russia–Ukraine war, on household financial distress in five European countries. We combine a VAR, household survey data, and theoretical insights to develop macro–micro simulations that quantify how such shocks influence household balance sheets. The VAR traces the macroeconomic effects of a surge in geopolitical risk, which we apply to household-level data using the HFCS. We find the shock is associated with elevated inflation, tighter monetary policy, higher mortgage rates, and falling house prices. Our simulations show these dynamics significantly increase financial distress, with variation across countries. We incorporate endogenous consumption responses and show that adjustments driven by interest rate exposure, inflation, and housing wealth play a key role in shaping household resilience. We also document that younger and lower-income households tend to increase consumption following the shock, exacerbating their financial vulnerability.
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CEO的风险承担:幼年时期暴露于社会暴力的作用

Risk-taking by CEOs: Role of exposure to social violence in early childhood
本文以文化大革命作为社会暴力的来源,考察童年和青少年早期(5—15岁)经历社会暴力对CEO风险承担行为的影响。我们发现,在这一形成性时期经历更高程度社会暴力的CEO,更不可能从事并购和创新活动。我们的结果在替代性解释和统计检验下保持稳健。进一步分析表明,这一效应通过影响人们的心理健康而产生作用。鉴于我们的处理与以往研究中的事件(如自然灾害或经济萧条)不同,本研究丰富了我们对管理者风险承担激励起源的理解。
Utilizing the Cultural Revolution as the source of social violence, we explore the effect of childhood and early adolescence (ages 5–15) experience of social violence on CEO’s risk-taking behavior. We document that CEOs who experienced higher levels of social violence during this formative period are less likely to engage in M&A and innovation activity. Our results are robust to alternative explanations and statistical exercises. Further analyses show that this effect takes effect by affecting people’s mental health. Given that our treatment is distinct from the events in prior studies (e.g., natural disasters or economic depression), this study enriches our understanding of the origin of managerial risk-taking incentives.
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内部人、外部人与非自愿失业:性骚扰加剧性别不平等

Insiders, outsiders, and involuntary unemployment: Sexual harassment exacerbates gender inequality
性骚扰被视为女性劳动参与的一大障碍。利用美国巡回法院关于工作场所性骚扰的判例数据,我们借助法官随机分案以及法官性别和任命党派可预测性骚扰案件判决这一事实,估计有利于原告的性骚扰判例对采用性骚扰人力资源政策以及减少性别不平等的因果影响。与非自愿失业的内部人—外部人模型一致,禁止性骚扰促进了外部人进入,并在工作小时数和工资维度上减少了性别不平等,尤其是在受性骚扰诉讼影响严重的建筑业;但这些改善效应对内部人女性有所减弱。有利于原告的判决推动了性骚扰人力资源政策的采纳,并提高了女性就业份额。其影响与《平等就业机会法》对黑人就业份额的影响相当。
Sexual harassment is perceived to be a major impediment to female labor force participation. Using data on workplace sexual harassment precedent in US Circuit Courts, we exploit the random assignment of judges and the fact that a judge’s gender and party of appointment predict decisions in sexual harassment cases to estimate the causal impact of pro-plaintiff sexual harassment precedent on the adoption of sexual harassment human resources policies and reduction in gender inequality. Consistent with an insider–outsider model of involuntary unemployment, forbidding sexual harassment encouraged entry of outsiders and reduced gender inequality along the dimensions of hours worked and wages, particularly in the construction industry, which was heavily affected by sexual harassment litigation, but these ameliorative effects are reduced for insider women. Pro-plaintiff decisions spurred the adoption of sexual harassment human resources policies and increased female employment shares. The effects were comparable to the Equal Employment Opportunity Act’s impact on black employment share.
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Journal of Corporate Finance Journal of Corporate Finance

3 篇 ▼

信息来源多样性与分析师预测偏差

Information source diversity and analyst forecast bias
本文考察分析师报告中披露的信息来源多样性越高,是否与更低的预测偏差相关。我们使用2007至2023年中国上市公司深度报告,通过GPT-4o辅助提取图表引文,构建了报告层面的披露来源多样性指标。我们发现,更高的来源多样性与更低的预测偏差之间存在负相关关系,且这种关系集中于当期预测。利用2020年中国工业数据基础设施扩张这一冲击,我们表明受冲击企业的来源多样性更高,预测偏差更低。我们进一步发现,来源更多样的报告记录了更稀缺的来源,而引用更稀缺来源的报告与更低的偏差相关。对于覆盖度较低的企业以及伴随正向EPS修正的报告,这种负相关关系更强。我们将披露来源多样性识别为与预测准确性相关的一个独特维度,从而为分析师研究质量文献作出贡献。
This paper examines whether greater diversity of disclosed information sources in analyst reports is associated with lower forecast bias. Using in-depth reports on Chinese listed firms from 2007 to 2023, we construct a report-level measure of disclosed source diversity from chart and table citations via GPT-4o-assisted extraction. We document a negative association between greater source diversity and forecast bias, concentrated in current-period forecasts. Exploiting the 2020 expansion of China's industrial data infrastructure, we show that treated firms experience higher source diversity and lower forecast bias. We further find that more diverse reports document scarcer sources, and that reports citing scarcer sources are associated with lower bias. The negative association is stronger for low-coverage firms and for reports accompanied by positive EPS revisions. We contribute to the literature on analyst research quality by identifying disclosed source diversity as a distinct dimension associated with forecast accuracy.
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管理层与金融分析师之间的私下沟通:来自纽约市出租车出行模式的证据

Private communication between managers and financial analysts: evidence from taxi-ride patterns in New York City
管理层与卖方分析师之间的私下沟通十分普遍,但外部市场参与者基本上无法观察到。本研究通过将纽约市出租车行程记录映射到公司总部以及纽约市分析师所属券商所在地,构建了管理层与卖方分析师之间面对面私下沟通的度量。我们聚焦于对此类沟通需求特别高的盈余公告,发现盈余公告后异常出租车出行量与分析师层面和企业层面的结果相关。在分析师层面,异常出行量增加与更准确的预测相关;当盈余消息更不确定或更出乎意料时,这种效应更强,这与私下沟通的解释性作用一致。此外,异常出行量增加还与更及时的盈余预测、更有利可图的股票推荐,以及能引发更强市场反应且随后没有漂移的预测修正相关。在企业层面,发布预测的分析师出租车活动更多的公司,其股价更能反映未来盈余,且预测分歧与买卖价差下降幅度更大。总体而言,研究结果表明,私下沟通有助于分析师生成关于公司未来盈余的及时而精准的公共信号,从而为企业层面信息环境和价格效率带来更广泛的益处。
Private communications between managers and sell-side analysts are widespread yet are largely unobservable to outside market participants. This study constructs a measure of face-to-face private communication between managers and sell-side analysts by mapping New York City (NYC) taxi trip records to company headquarters and brokerage locations of NYC analysts. Focusing on earnings announcements, where demands for such communication is particularly high, we find that abnormal ride volumes following earnings announcements are associated with analyst- and firm-level consequences. At the analyst-level, abnormal ride increases are associated with more accurate forecasts, with stronger effects when earnings news is more uncertain or unexpected, consistent with interpretive role of private communications. Also, abnormal ride increases are associated with timely earnings forecasts, more profitable stock recommendations, and forecast revisions that elicit stronger market reactions without subsequent drift. At the firm level, companies with greater taxi activity by forecast-issuing analysts exhibit stock prices more reflective of future earnings and larger reductions in forecast dispersion and bid-ask spreads. Overall, the findings suggest that private communications help analysts produce timely and precise public signals about firms' future earnings that translate into broader benefits for firm-level information environments and price efficiency.
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贸易扭曲与私募股权基金的投资决策

Trade distortions and investment decisions of private equity funds 1 1 We are grateful to Marc Arnold, Greg Brown, Matthias Fengler, Robert S. Harris, Tim Jenkinson, Tereza Tykvová as well as to the discussants and participants of the Private Equity Research Consortium (PERC) Spring Symposium 2023, the 7th Vietnam Symposium in Banking and Finance 2023, the PhD Seminar at the University of St.Gallen 2023, the 33rd European Financial Management Association Annual Meeting 2024, Singapore Economic Review Conference 2024 and the National University of Singapore (NUS) Quantitative Finance Conference 2025 for valuable comments.
我们考察各国和各行业贸易扭曲的差异如何与私募股权基金的投资行为相关,并明确考虑基金的国家和行业投资授权。我们使用2010—2020年间由1623只私募股权基金完成的、覆盖60个国家和52个行业的9142笔交易样本。总体而言,我们发现,在特定国家—行业组合中限制进口的贸易政策与该市场获得私募股权基金投资的几率之间存在负向且统计显著的相关关系。这种关联因贸易政策工具而异。我们观察到,关税与受影响国家—行业组合获得投资的概率之间存在正向且统计显著的联系。相比之下,对进口竞争企业的补贴与投资呈负相关。
We examine how variation in trade distortions across countries and industries is associated with the investment behavior of private equity funds, taking explicit account of their country and industry mandates. We use a sample of 9142 transactions across 60 countries and 52 industries completed by 1623 PE funds during 2010–2020. Overall, we find a negative and statistically significant association between trade policies that restrict imports in a given country-industry combination and the odds of a PE fund investment in that market. This association differs by trade policy instrument. We observe a positive and statistically significant link between tariffs and the likelihood of investment in the affected country-industry combination. In contrast, subsidies to import-competing firms are negatively associated with investment.
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Journal of Development Economics Journal of Development Economics

4 篇 ▼

培养制度信任与器官捐献:来自突尼斯一项随机信息干预的证据

Fostering institutional trust and organ donation: Evidence from a randomized informational intervention in Tunisia
器官移植可以挽救生命,并改善否则将依赖昂贵且有创治疗的患者的生活质量。该技术正在低收入和中等收入国家变得可用,但器官移植供需缺口仍然很大。在突尼斯一所大学的一项随机对照试验中,我们评估了一项由专家主导、旨在提供器官捐献信息并增强对医疗机构信任的干预。该干预包括一段心脏移植幸存者的短视频证言、一位医生主导的演示以及简短的问答环节。我们发现,该干预显著增加了逝世后器官捐献登记,并有提示性证据表明对对照组存在正向溢出效应。调查数据几乎没有支持态度和社会期望变化作为潜在机制。相反,它显示处理组学生的医学和法律知识、支持捐献的宗教信仰以及制度信任都有大幅且统计显著的提高。最后,我们表明器官捐献者登记的处理效应由男学生以及家庭可能支持器官捐献的学生驱动。针对年龄较大的人群可能进一步提高该干预的影响和成本效益。
Organ transplantation saves lives and improves the quality of life of patients who would otherwise depend on costly and invasive treatments. The technology is becoming available in low- and middle-income countries, but the gap between the demand for and the supply of organ transplants remains large. In a randomized controlled trial at a Tunisian university, we evaluate an expert-led intervention designed to inform about organ donation and strengthen trust in medical institutions. The intervention consists of a short video testimonial from a heart transplant survivor, a presentation led by a medical doctor and a short Q&A session. We find that the intervention significantly increases deceased donor registration, with suggestive evidence of positive spillover effects on the control group. The survey data provides little support for changes in attitudes and social expectations as potential mechanisms. Instead, it reveals large and statistically significant increases in medical and legal knowledge, religious beliefs supportive of donation, and institutional trust among treated students. Finally, we show that treatment effects on organ donor registration are driven by male students and those whose families likely support organ donation. Targeting older segments of the population may further increase the impact and cost-effectiveness of this intervention.
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填补空白:数字平台经济与城市消费便利设施的空间集聚

Filling in the gaps: Digital platform economies and the agglomeration of urban consumption amenities
餐厅和零售网点的空间集聚为消费者寻找差异化本地商品和服务提供了实体平台。然而,Yelp 和美团等数字平台的快速渗透大幅降低了搜索摩擦,并从根本上改变了消费者的搜索行为。本文建立一个定向消费者搜索模型,以研究数字平台的引入和合并对城市集聚的影响,并利用关于商户迁址、平台注册和消费者评论的新颖数据集提供实证证据。研究发现:(1)数字平台推动商户选址于横向和纵向可达性较低的集群位置;(2)数字平台在商业密度、多样性和集聚模式方面与城市集聚互补。
The spatial agglomeration of restaurants and retail establishments provides a physical platform for consumers searching for differentiated local goods and services. However, the rapid penetration of digital platforms, such as Yelp and Meituan, has substantially lowered search frictions and fundamentally changed the search behavior of consumers. This paper establishes a directed consumer search model to investigate the impact of the introduction and merger of digital platforms on urban agglomeration and provides empirical evidence with novel datasets on merchant relocation, platform registration, and consumer reviews. It is found that (1) digital platforms drive merchants to locate in cluster locations with lower horizontal and vertical accessibility; (2) digital platforms complement urban agglomerations regarding business density, diversity, and clustering patterns.
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这山未必更绿:本地劳动力市场信息对求职和就业的影响

The grass is not always greener: The effects of local labor market information on search and employment
我们考察关于本地劳动力市场状况的信息如何塑造印度求职者的求职和就业结果。参与者被随机展示来自热门招聘门户网站的关于其偏好城市和职业的职位发布、求职者或两者兼有的信息。处理组受访者在七个月后更可能就业。这一总体效应因基线就业状况而差异很大。在初始就业者中,处理减少了离开该门户的求职并增加了就业,并有提示性证据表明他们更可能留在基线工作。相反,在初始失业者中,处理增加了求职活动,但并未提高就业。就业改善集中在那些对劳动力市场状况持较不乐观信念的求职者中。这些发现表明,关于劳动力市场基本面的有限信息可能加剧低收入国家的职位流动。
We examine how information about local labor market conditions shapes search and employment outcomes for Indian job seekers. Participants were randomly shown information about either job postings, job applicants, or both from a popular job portal for their preferred city and occupation. Treated respondents are more likely to be employed seven months later. This overall effect varies considerably by baseline employment status. Among the initially employed, treatments reduce search off the portal and increase employment, with suggestive evidence of higher persistence in baseline jobs. In contrast, among the initially unemployed, treatments increase search activity but do not raise employment. Employment gains are concentrated among job seekers with less optimistic beliefs about labor market conditions. These findings suggest that limited information about labor market fundamentals may contribute to job churn in lower-income countries.
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现金转移与儿童的社会偏好

Cash transfers and social preferences of children
我们使用随机对照试验研究肯尼亚农村一项大型无条件现金转移项目对儿童社会偏好的影响。在现金转移三年后,我们通过调查问题和激励性行为博弈测量了4022名儿童的社会偏好。首先,我们发现该项目没有持续的经济效应。此外,我们没有发现一致证据表明处理组儿童或溢出组儿童比对照组儿童更具或更不具亲社会性。然而,我们发现一些证据表明,溢出组家庭中的成人和儿童心理福祉有所下降。
We study the effects of a large unconditional cash transfer program on social preferences of children in rural Kenya using a randomized controlled trial. We measure the social preferences of 4022 children with survey questions and incentivized behavioral games three years after the cash transfer. First, we find no persistent economic effects of the program. Additionally, we find no consistent evidence that children from the treatment group or that children from the spillover group are more or less prosocial than children from the control group. However, we find some evidence of reduced psychological well-being among adults and children in spillover households.
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Journal of Economic Behavior and Organization Journal of Economic Behavior and Organization

8 篇 ▼

风险承担中的匹配:过度自信的银行家与受政府保护的银行

Matching for risk-taking: Overconfident bankers and government-protected banks
我们构建了一个简单理论模型,其中具有不同程度政府支持的银行与具有不同程度过度自信的CEO进行匹配。匹配发生的渠道是银行在其利润最大化合约中提供的奖金支付份额。当CEO可以自由选择风险水平时,这产生了一系列假设:政府支持更多的银行会给予其CEO更多激励,而这会不成比例地吸引过度自信的CEO。在均衡中,这反过来导致过度自信的管理者与救助概率更大的银行之间形成正向匹配。然后,我们使用涵盖大金融危机和新冠危机的美国数据检验了该模型推导出的假设。我们的结果证实了理论模型在正常年份提出的假设,但在危机和强化监管时期则不然。
We set up a simple theoretical model in which banks with varying degrees of government support are matched with CEOs that have different degrees of overconfidence. The channel through which the matching occurs is the share of bonus payments offered by banks in their profit-maximizing contracts. This yields a sequence of hypotheses when CEOs can freely choose risk levels: banks with more government support incentivize their CEOs more and this disproportionately attracts overconfident CEOs. In equilibrium this in turn leads to an assortative matching between overconfident managers and banks with a larger bailout probability. We then test the hypotheses derived from this model for U.S. data spanning both the Great Financial Crisis and the Covid Crisis. Our results confirm the hypotheses from our theoretical model for normal years, but not during crises and periods of enhanced regulation.
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共享育儿假、男性董事会成员与企业绩效:公司治理视角

Shared parental leave, male board directors, and firm performance: A corporate governance perspective
为了探索董事会性别多元化的更广泛维度,我们考察与共享育儿假(SPL)相关的、促进性别平等的政府政策是否会影响男性董事会成员的治理行为。我们利用1930家英国公司的数据以及对董事会成员的半结构化访谈,分析2015年英国SPL政策的影响。与社会影响理论一致,我们观察到SPL之后男性董事治理决策的变化。由于公司治理改善,男性董事占多数的公司财务绩效得到提升。董事访谈显示,董事会层面对性别平等和SPL的关注增加,这往往由体贴而又有权力的男性董事推动。我们的研究拓宽了公司治理与性别研究,表明对性别平等承诺增强对占主导地位的男性董事群体的公司治理行为具有积极影响。要使董事会性别多元化促成有意义的绩效改善,多元化必须嵌入组织深层,并且女性董事必须被赋予足够权力以推动战略变革。政府需要确保性别平等政策促进结构性平等,并鼓励父亲休育儿假。除了关注性别代表目标外,公司还必须解决董事会中的性别权力失衡。
To explore a broader dimension of board gender diversification, we investigate whether increased gender-equal government policy in relation to shared parental leave (SPL) affects the governance behavior of male board directors. We analyze the influence of the 2015 UK SPL policy using data on 1930 UK firms and semi-structured interviews with board directors. Consistent with social influence theory, we observe changes in male directors’ governance decisions after SPL. Attributable to better corporate governance, financial performance improves in firms with predominantly male boards. Director interviews reveal increased board level focus on gender equality and SPL, often facilitated by considerate, yet powerful, male directors. Broadening research on corporate governance and gender, our study suggests the positive influence of increased commitment to gender equality on the corporate governance behavior of the predominant cohort of male directors. For board gender diversity to contribute to meaningful performance improvements diversity must be embedded at deep organizational levels, and women directors must be granted sufficient power to effect strategic change. Governments need to ensure gender egalitarian policies foster structural equality and encourage fathers to take parental leave. In addition to focusing on gender representation targets, firms must address boardroom gender power imbalance.
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为商品化而竞争,还是为去商品化而平台化:凸显性思维的作用

Competing for commoditization or platforming for de-commoditization: The role of salient thinking
消费者偏好往往依赖于情境,注意力会自然地被产品最突出的属性所吸引。本文运用“凸显性思维”的行为框架,考察企业如何战略性地设计渠道架构以操纵消费者关注点。我们揭示了企业从直接竞争者转变为合作性互补者时激励中的一个根本性不对称。在直接竞争下,市场往往陷入“商品化”、价格凸显的均衡。然而,我们表明相对产品质量使企业能够摆脱这一陷阱。当低质量企业转售高质量竞争者的产品时,由此产生的对比会将消费者关注点从价格转向质量;这种“去商品化”培育出一种能够克服双重边际化的市场环境,尤其是在质量生产成本保持适中时。关键在于,这一机制在结构上是不对称的:如果高质量企业作为转售者,则该机制失效,因为低质量企业偏好价格凸显的竞争。这些见解为高端品牌和大众品牌为何在现代零售生态中选择性地共址经营提供了一种新颖的、由认知驱动的理由。
Consumer preferences are often context-dependent, with attention naturally drawn to a product’s most prominent attribute. Applying the behavioral framework of “salient thinking,” this paper examines how firms strategically design channel architecture to manipulate consumer focus. We reveal a fundamental asymmetry in the incentives for firms to transition from direct competitors to cooperative complementors. Under direct competition, markets often devolve into a “commoditized,” price-salient equilibrium. However, we demonstrate that relative product quality allows firms to escape this trap. When a lower-quality firm resells a premium competitor’s product, the resulting contrast shifts consumer focus from price to quality; this “de-commoditization” fosters a market environment that can overcome double marginalization, particularly when quality-production costs remain moderate. Crucially, this mechanism is structurally asymmetric: it fails if the high-quality firm acts as the reseller, as low-quality firms prefer price-salient competition. These insights provide a novel, cognition-driven rationale for why premium and budget brands selectively co-locate in modern retail ecosystems.
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愿意为保障付费:一项分析劳动供给偏好的离散选择实验

Willing to pay for security: A discrete choice experiment to analyse labour supply preferences
本文研究工人对区分非典型工作安排与传统雇佣关系的职位属性的估值。利用一个基于情境小品的离散选择模块,并对英国和美国工人样本进行调查,我估计了合同保障、工作相关福利、灵活性、自主性和税收待遇的支付意愿分布。在两个国家,工人对工作保障和雇佣保护的价值都显著高于与灵活性相关的属性。有趣的是,这一模式即使在自雇者中也成立:估计近三分之二的英国自雇工人和略低于一半的美国自雇工人更偏好传统雇佣组合。尽管英美制度存在差异,平均估值却非常接近。异质性分析显示,大多数可观察特征只能解释偏好的有限变异,但风险厌恶和为人父母是显著例外,二者都大幅提高了工人对合同保障的重视程度。
This paper investigates workers’ valuations of the job attributes that distinguish atypical work arrangements from traditional employee relationships. Using a vignette-based discrete-choice module fielded to samples of UK and US workers, I estimate willingness-to-pay distributions for contract security, work-related benefits, flexibility, autonomy, and tax treatment. Across both countries, workers place substantially higher value on job security and employment protections than on flexibility-related attributes. Interestingly, this pattern holds even among the self-employed: almost two-thirds of UK self-employed workers and just under half of US self-employed workers are estimated to prefer the traditional-employment bundle. Despite institutional differences between the UK and US, average valuations are closely aligned. The heterogeneity analysis shows that most observable characteristics account for only limited variation in preferences, but risk aversion and parenthood are notable exceptions, with both substantially increasing the value workers attach to contract security.
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前沿技术采用者与常规工作的总体下降

Frontier technology adopters and the aggregate decline of routine jobs
我们提供了微基础证据,说明企业层面采用前沿技术如何塑造整个经济的职业就业结构。将2011年至2016年间1660家德国现有企业的技术采用调查数据与行政工人记录相连接,我们发现采用人工智能或智能工厂等前沿技术的企业对常规工作的总体下降贡献不成比例地大。关键的是,这些总体效应并非来自企业内的平均调整,而是来自一部分规模较大且常规密集度较低的采用者。我们的发现强调,前沿技术采用本身并非替代常规工作:企业规模和初始非常规密集型的劳动力是去常规化发生的关键条件。
We provide micro-founded evidence on how establishment-level adoption of frontier technologies shapes the economy-wide occupational employment structure. Linking survey data on technology adoption between 2011 and 2016 by 1660 German incumbent establishments to administrative worker records, we find that establishments adopting frontier technologies such as AI or smart factories contributed disproportionately to the overall decline in routine jobs. Crucially, these overall effects do not stem from average within-establishment adjustments but from a subset of large and less routine-intensive adopters. Our findings highlight that frontier technology adoption is not routine-replacing per se: establishment size and an initially non-routine-intensive workforce are key conditions for de-routinization to occur.
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全球疫苗可及性、死亡率与经济的不平等:一项基于主体的探索

Global inequality in vaccine access, mortality and economy: An agent-based exploration
我们开发了一个基于主体的模型,以研究全球疫苗不平等对经济和公共卫生的影响。我们的模型包含两个世界区域(高收入与低收入),并刻画经济活动、一种假设的新型大流行病毒的传播与演化以及公共卫生响应之间的共同演化。我们利用COVID-19大流行的数据对模型参数进行实证校准和估计,以捕捉两个区域对大流行病毒的经济和社会响应。我们的模拟表明,疫苗不平等可能大幅加剧两个区域的死亡率不平等。这是因为低收入区域死亡率急剧上升,而高收入区域在大多数模拟中通常只经历很小(如果有的话)的死亡率下降。然而,疫苗不平等对两个区域的经济都有害。其驱动因素是,严重的疫苗不平等消除了根除一种变异病毒的前景。高收入与低收入区域死亡率之间的任何权衡都可以通过增加疫苗剂量生产来缓解。此外,我们的分析揭示,高收入区域通过为增加疫苗生产付费而在经济上受益。
We develop an agent-based model to study the economic and public health impact of global vaccine inequality. Our model contains two world regions (higher-income vs. lower-income) and captures the co-evolution between economic activity, the spread and evolution of a hypothetical novel pandemic virus, and public health responses. We calibrate and estimate the model parameters empirically with data from the COVID-19 pandemic to capture the economic and social response to pandemic viruses in both regions. Our simulations suggest that vaccine inequality can drastically exacerbate inequality in mortality in the two regions. This is because the lower-income region suffers from drastically increased mortality, while the higher-income region generally only experiences a small (if any) decrease in mortality in most simulations. However, vaccine inequality harms both regions economically. This is driven by the fact that severe vaccine inequality eliminates the prospect of eradicating a mutating virus. Any trade-off between mortality in higher- and lower-income regions can be mitigated by increasing the production of vaccine doses. Furthermore, our analysis reveals that the higher-income region benefits economically from paying for increased vaccine production.
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持续遗留效应:殖民时期铁路与非洲农业生产率

The persistent legacy: Colonial railroads and agricultural productivity in Africa
本文考察殖民时期铁路对撒哈拉以南非洲农业生产率的长期影响。利用来自22个国家的细粒度数据,我们表明历史上与铁路相连的地区今天仍然生产率更高。我们还发现,这些地区更深入地融入现代基于道路的城市市场。我们将这一模式解释为路径依赖的空间均衡的证据,即早期交通网络投资有助于协调后殖民时期经济活动的位置。然而,证据并不排除殖民铁路和现代道路网络都遵循持续有利的地理基础的可能性。更广泛地说,这些发现表明早期交通投资如何通过塑造市场可达性的地理格局,对农村发展留下持久影响。
This paper examines the long-term impacts of colonial-period railroads on agricultural productivity in sub-Saharan Africa. Using granular data from 22 countries, we show that historically rail-connected regions remain more productive today. We also find that these regions are more integrated into modern road-based urban markets. We interpret this pattern as evidence of path-dependent spatial equilibrium, where early investment in the transportation network helped coordinate the location of economic activities in the post-colonial period. However, the evidence does not rule out the possibility that colonial railways and the modern road network both followed persistent favorable geographic fundamentals. More broadly, the findings show how early transport investment can leave durable effects on rural development by shaping the geography of market access.
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当森林燃烧时,谁在担忧气候变化?来自瑞典森林火灾的证据

Who is concerned about climate change when forests are burning? Evidence from Swedish forest fires
我利用2018年瑞典大规模森林火灾,考察个人如何回应气候事件而更新其环境态度。政治学家提出,动机性推理导致环境态度随时间分化。气候事件日益突出究竟可能扩大还是弥合这些政治分歧,在实证上仍不清楚。我记录了火灾后环境担忧上升。这些上升的程度似乎与当地火灾强度无关,但因个人先前信念而显著不同。与绿党—左翼倾向的个人相比,保守—右翼倾向的个人先前担忧较弱,火灾后担忧上升幅度也更小。担忧上升表明,气候事件加剧而非缓解了环境态度上的政治极化。我还发现没有证据表明接触气候变化新闻能够解释观察到的担忧政治极化。这些模式与沿党派路线的动机性推理塑造对气候灾害的不同反应相一致。相比之下,我没有发现对提高碳税支持度的类似模式,表明担忧增加不一定转化为对气候政策的支持。
I examine how individuals update their environmental attitudes in response to climate events using the extensive Swedish forest fires in 2018. Political scientists have suggested that motivated reasoning contributes to divergence in environmental attitudes over time. It remains empirically unclear whether the growing prominence of climate events could potentially widen or bridge these political divides. I document rising environmental concerns following the fires. The extent of these increases did not appear to be associated with the intensity of local fires but varied significantly by individuals’ prior beliefs. Green-left-leaning individuals exhibited stronger prior concerns and showed larger increases in concern after the fires than conservative-right-leaning individuals. The growing concern suggests that climate events exacerbate political polarization in environmental attitudes rather than mitigating it. I also find no evidence that exposure to climate change news explains the observed political polarization in concerns. These patterns are consistent with motivated reasoning along partisan lines shaping differential reactions to climate disasters. In contrast, I do not find similar patterns for support for a higher carbon tax, indicating that increased concern does not necessarily translate into support for climate policy.
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Journal of Empirical Finance Journal of Empirical Finance

2 篇 ▼

股票收益中的领先—滞后关系识别与投资组合策略

Detecting lead–lag relationships in stock returns and portfolio strategies
我们研究美国股票中的有向领先—滞后关系及其在日频上的经济价值。我们提出一种基于有序二阶签名(Lévy面积)的方向性得分,并从收盘到收盘收益中估计滚动有向网络。利用推断出的领先者滞后收益交易跟随者,构建以SPY对冲的信号标准化多空组合。使用1963—2022年CRSP大盘股数据,签名策略实现约20%的年化收益,夏普比率高于3。我们的方法优于标准基准和文献中的基准。我们发现信号仅能在很小程度上由先前发现的领先—滞后关系和Fama—French因子解释。
We study directed lead–lag relationships in US equities and their economic value at the daily horizon. We propose a directional score based on ordered level-2 signatures (Lévy area) and estimate a rolling directed network from close-to-close returns. Trading followers using inferred leaders lagged returns yields a signal-normalized long–short portfolio hedged with SPY. Using CRSP data from 1963–2022 on large-cap stocks, the signature strategy achieves about 20% annualized returns with Sharpe above 3. Our method outperforms standard benchmarks and benchmarks from the literature. The signals we discover are only weakly explainable by previously discovered lead–lag relationships and Fama–French factors.
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员工作为公司利益相关者:工会化劳动对盈余质量的影响

Employees as Corporate Stakeholders: The Effect of Organized Labor on Earnings Quality
与传统观点认为工会化企业披露更少相反,我们发现拥有组织化劳动的企业提供质量更好的盈余。我们利用接近结果的工会选举周围的随机分配进行断点回归分析,并利用工作权法的交错实施采用双重差分方法,建立因果关系。在更有能力施加影响、监督激励更强以及替代信息来源有限的企业和情境中,组织化劳动的影响显著更强。在盈余质量更好的企业中,组织化劳动对劳动相关成本上升的影响也显著减弱。总体而言,我们的研究表明,管理者面临一种权衡:一方面要保护股东免受工会驱动的寻租影响,另一方面要通过满足员工对有用信息的需求来与员工建立信任关系。
Contrary to the conventional view that unionized firms are associated with less disclosure, we find that firms with organized labor provide earnings with better quality. We establish the causal relationship using a regression discontinuity analysis that exploits the random assignment around close-call union elections and through a difference-in-differences approach, utilizing the staggered enactment of right-to-work laws. The influence of organized labor is significantly stronger in firms with greater capacity to wield influence, enhanced incentives to monitor, and in contexts where alternative information sources are limited. The impact of organized labor on increasing labor-related costs is also significantly reduced in firms with better earnings quality. Overall, our research indicates that managers face a tradeoff between shielding shareholders from union-driven rent-seeking and building a trusting relationship with employees by accommodating employees’ demand for useful information.
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Journal of Environmental Economics and Management Journal of Environmental Economics and Management

2 篇 ▼

减少妥协的垃圾焚烧发电厂:为保护生物多样性优化选址与容量

Waste-to-Energy Power Plants with Less Compromise: Optimizing Location and Capacity for Biodiversity Protection
垃圾焚烧发电(WtE)正日益被推崇为解决城市固体废物管理和低碳能源发电的方案。然而,其部署引发了人们对生态退化的日益担忧。本研究考察中国垃圾焚烧发电厂对鸟类物种丰富度和环境污染的影响。我们使用双重差分(DID)框架和2010年至2024年的城市层面面板数据集进行异质性分析,结果显示:与低容量设施相比,高容量垃圾焚烧发电设施周边的生物多样性损失低9.7%;与低发电量电厂相比,高发电量电厂周边的生物多样性损失低8.7%。通过将鸟类物种丰富度数据与植被指数和空气污染指标相结合,我们证明生物多样性损失主要由与垃圾焚烧发电运行相关的环境退化所驱动。此外,我们采用工具变量(IV)策略以减少潜在内生性。我们使用双重机器学习(DML)方法和县级回归作为稳健性检验。我们的发现呼吁推进垃圾焚烧发电技术并改造老旧设施以提高环境绩效,同时进行战略性空间规划,将电厂布置在人口较少且交通网络强大的地区,以平衡生态保护与运营可持续性。
Waste-to-energy (WtE) incineration is increasingly promoted as a solution to municipal solid waste management and low-carbon energy generation. However, their deployment raises growing concerns about ecological degradation. This study examines the effects of WtE plants on bird species richness and environmental pollution in China. Using a difference-in-differences (DID) framework and a city-level panel dataset from 2010 to 2024, we conduct heterogeneity analysis, and our results show that biodiversity losses are 9.7% lower around high-capacity WtE facilities compared to low-capacity ones, and 8.7% lower around high-power-generation plants relative to low-power ones. By integrating bird species richness data with vegetation indices and air pollution metrics, we demonstrate that biodiversity loss is primarily driven by environmental degradation linked to WtE operation. Moreover, we employ instrumental variable (IV) strategies to reduce potential endogeneity. We use Double Machine Learning (DML) approaches and county-level regressions as robustness checks. Our findings call for advancement in WtE technologies and retrofit of outdated facilities to improve environmental performance, alongside strategic spatial planning that situates plants in less populated areas with strong transportation networks to balance ecological protection and operational sustainability.
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空气污染、烟雾日与工作时间

Air pollution, smoky days, and hours worked
本研究使用全国代表性样本考察空气污染对智利工作时间的影响。我们构建了源自野火的下风向烟雾羽流,并将其与逆温现象的存在相结合,以因果识别空气污染的影响。研究发现,多一个烟雾日导致细颗粒物增加,使工作时间减少2.2%。我们的研究表明,仅关注劳动生产率会低估空气污染的经济成本18%–43%。这一效应对女性劳动者以及从事户外任务的劳动者更为明显。我们还表明,该效应在农村和城市地区之间存在高度异质性。在城市地区,高收入劳动者受空气污染的影响更大,但在农村地区则不然。
This study investigates the impact of air pollution on hours worked in Chile using a nationally representative sample. We construct downwind smoke plumes originating from wildfires and combine them with the presence of thermal inversions to causally identify the effect of air pollution. Our findings reveal a 2.2% reduction in hours worked due to increased fine particulate matter from an extra smoky day. Our study suggests that focusing solely on labor productivity underestimates the economic cost of air pollution by 18–43%. The effect is more pronounced for female workers as well as workers engaged in outdoor tasks. We show a high degree of heterogeneity in the effect across rural and urban areas. In urban areas, high-income workers experience a larger impact of air pollution, but not in rural areas.
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Journal of Financial Economics Journal of Financial Economics

2 篇 ▼

配股发行能否降低第11章破产中的谈判复杂性?

Do rights offerings reduce bargaining complexity in Chapter 11?
本文考察配股发行在美国第11章破产重组中的作用,将其视为一种缓解谈判摩擦的新型市场化机制。利用新颖的手工收集数据,我记录了三个事实:(i) 过去二十年,配股发行为35%的大型破产提供了融资;(ii) 它们主要由对冲基金提议并承销;(iii) 其发生与股票市场表现高度相关。在工具变量设定中,我发现与其他融资来源相比,配股发行带来更高的债权人回收率、更短的重组持续时间和更低的再次申请破产率。它们还使企业无需诉诸资产清算即可获得新资本,而资产清算会减损价值。我的发现表明,通过缓解大型复杂破产案件中的关键谈判摩擦,配股发行可能改善经济中的资源配置效率。
This paper investigates the role of rights offerings in U.S. Chapter 11 reorganizations as a new market-based mechanism for mitigating bargaining frictions. Using novel hand-collected data, I document three facts: (i) over the past two decades, rights offerings financed 35% of large bankruptcies, (ii) they are predominantly proposed and underwritten by hedge funds, and (iii) their occurrence is highly correlated with stock market performance. In an instrumental variable setting, I find that compared with other sources of financing, rights offerings lead to higher creditor recoveries, shorter reorganization durations, and lower refiling rates. They also allow firms to access new capital without resorting to asset liquidations, which are value-reducing. My findings suggest that by alleviating key bargaining frictions in large and complex bankruptcy cases, rights offerings may improve the efficiency of resource allocation in the economy.
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折现择时策略

Discounting timing strategies
多种在月度期限上能产生阿尔法和高夏普比率的择时策略,在更长的投资期限上表现大幅恶化。这一效应很大:从一个月到十年回报,多因子阿尔法减少一半以上,而利用时间序列可预测性的因子将其降至零。我认为,这种收益动态反映了对冲击暴露的补偿,而从长期投资者的角度看,这些冲击尤其具有风险。我通过表明风险价格和预期现金流冲击波动率的季节性会生成看似有利可图的择时策略,来说明这一观点。
A variety of timing strategies shown to generate alpha and high Sharpe ratios at the monthly horizon exhibit substantially deteriorated performance at longer investment horizons. The effect is large: multi-factor alphas are more than halved going from one-month to 10-year returns, and factors that exploit time-series predictability drive them to zero. I argue that such return dynamics reflect compensation for exposure to shocks that are particularly risky from a long-horizon investor’s perspective. I illustrate the idea by showing that seasonality in the volatility of price-of-risk and expected-cash-flow shocks generates seemingly profitable timing strategies.
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Journal of Public Economics Journal of Public Economics

4 篇 ▼

居家办公与生产率:来自司法系统的证据

WFH and productivity: Evidence from the judiciary
我们通过评估加泰罗尼亚司法系统强制返回办公室(RTO)政策,估计公共部门取消居家办公(WFH)对生产率的影响。利用各法院在强制令前WFH强度的差异,双重差分估计显示,终止WFH使记录的流程产出下降5.2%,而文件质量或缺勤率没有可检测到的变化。一项多利益相关者调查显示,WFH带来的记录收益与外部使用者报告的协调成本并存:记录在案的案件处理任务在数字平台上完成,易于远程执行和监控,而与律师的协调是同步的,更难在异地完成,且基本未被记录。感知影响呈现梯度:案件管理员和主管观察到官僚效率边际,对WFH持正面态度;而依赖服务协调的律师则明显持负面态度。
We estimate the productivity effects of eliminating work from home (WFH) in the public sector by evaluating a mandatory return-to-office (RTO) policy in the Catalan judiciary. Leveraging cross-court variation in pre-mandate WFH intensity, difference-in-differences estimates show that terminating WFH reduced recorded procedural output by 5.2 percent, with no detectable changes in document quality or absenteeism. A multi-stakeholder survey shows that these recorded gains from WFH coexisted with coordination costs reported by external users: recorded case-processing tasks are performed on a digital platform, easy to do remotely and to monitor, whereas coordination with lawyers is synchronous, harder to do off-site, and largely unrecorded. Perceived impacts follow a gradient: case managers and supervisors, who observe the bureaucratic-efficiency margin, are positive about WFH, while lawyers, who depend on service coordination, are clearly negative.
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感觉自己富有,还是看起来富有?自我感知与社会感知的相对收入

Feeling rich or looking rich? Self-perceived vs socially-perceived relative income
个人可能既因自己如何看待自身地位,也因他人如何感知自身地位而关心地位。我们通过五项假设性离散选择实验比较这两个维度,这些实验分别在收入、学业表现和汽车安全领域改变绝对结果、自我感知地位和社会感知地位。分析样本包括4934名美国受访者,以及两项引出任务:一项无激励的自选任务,和一项有激励的协调博弈,受访者因预测众数选择而获得奖励。在五项实验条件中的四项中,社会感知地位正向进入,而自我感知地位要么为负,要么在统计上与零无法区分。例外是收入自选条件,其模式相反——这一结果值得进一步研究。
Individuals may care about status both because of how they view their own position and because of how others perceive it. We compare these two dimensions using five hypothetical discrete-choice experiments that separately vary absolute outcomes, self-perceived standing, and socially-perceived standing in the domains of income, academic performance, and car safety. The analysis sample includes 4934 U.S. respondents and two elicitation tasks: a non-incentivized own-choice task and an incentivized coordination game in which respondents are rewarded for predicting the modal choice. Across four of the five experimental conditions, socially-perceived standing enters positively, while self-perceived standing is either negative or statistically indistinguishable from zero. The exception is the income own-choice condition, where the pattern reverses—a result that warrants further research.
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顶层收入征税:效率、社会福利与拉弗曲线

Top income taxation: Efficiency, social welfare and the Laffer curve
本文构建了一个分析顶层收入征税的结构性框架,并将其应用于美国六十年的税收历史以及另外八个发达经济体。本文推导了在全部税率范围内最高档税收收入和总超额负担的显式表达式,同时保持与Saez(2001)充分统计量方法的局部一致性。应用于美国时,分析表明,在当前应税收入弹性为0.25的情况下,当前联邦最高税档的超额负担为1010亿美元,而将最高边际税率提高到使收入最大化的72%水平,将使年收入增加1110亿美元。当前税率低于与纯效用主义社会福利概念相一致的水平。相比之下,北欧国家以及早几十年的美国似乎曾在超过收入最大化水平的税率上运行。
This paper develops a structural framework for analyzing top income taxation and applies it to six decades of U.S. tax history and to eight other advanced economies. The paper derives explicit expressions for top-bracket tax revenue and total excess burden across the full range of tax rates, while preserving local consistency with the sufficient-statistics approach of Saez (2001). Applied to the United States, the analysis implies that the current excess burden of the top federal tax bracket is $101 billion and that raising the top marginal tax rate to its revenue-maximizing level of 72 percent would increase annual revenue by $111 billion, given a taxable income elasticity of 0.25. The current tax rate is lower than what is consistent with a purely utility-based notion of social welfare. By contrast, Nordic countries and the United States in earlier decades appear to have operated at tax rates exceeding revenue-maximizing levels.
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检察官政治:监禁率上升时代选举周期对刑事量刑的影响

Prosecutor politics: The impact of election cycles on criminal sentencing in the era of rising incarceration
本文利用美国监禁率急剧上升期间(约1986—2006年)近40个州地区检察官选举时间的差异,表明选举年增加了州监狱的人均入监人数和判处月数,其中入监人数上升3%——该时期约增加63,000例监狱入监。这些效应集中在南方,在共和党县更强,并随着公众舆论软化而减弱,在该时代结束后基本消失。结果表明,量刑结果会回应选民偏好,这意味着理解监禁率上升背后的政治可能与理解政策本身同样重要。
Exploiting variation in the timing of district attorney elections across nearly 40 states during the steepest rise in U.S. incarceration (roughly 1986–2006), this paper shows that election years increased per capita admissions and months sentenced to state prisons, with admissions rising 3 percent—approximately 63,000 additional prison admissions over the period. These effects were concentrated in the South, were stronger in Republican counties, and declined as public opinion softened, largely disappearing after the era ended. Results suggest that sentencing outcomes respond to voter preferences, implying that the politics underlying rising incarceration may be as important to understand as the policies themselves.
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NBER National Bureau of Economic Research

34 篇 ▼

监管检查的溢出效应:来自OSHA的证据

Spillover Effects of Regulatory Inspections: Evidence from OSHA
监管检查可能会影响被检查对象附近的主体。此类溢出难以识别,因为监管者会选择性瞄准检查对象,且邻近机构面临相关冲击。我们利用美国职业安全与健康管理局(OSHA)的“特定场所目标定位”(SST)项目,该项目在伤害率接近某一离散临界值的工作场所之间产生了准随机的检查变异。一次SST检查使未被检查的同一邮政编码区内机构的伤害减少约11%——这一效应大致与被检查机构所受到的直接影响相当。由于溢出会扩展到多个附近机构,其避免的伤害数量是检查直接效应的数倍。
Regulatory inspections might affect entities nearby those inspected. Such spillovers are difficult to identify because regulators target inspections and neighboring establishments face correlated shocks. We exploit the U.S. Occupational Safety and Health Administration’s Site-Specific Targeting (SST) program, which generated quasi-random variation in inspections among workplaces with injury rates near a discrete cutoff. An SST inspection reduced injuries at uninspected same-ZIP-code establishments by an estimated 11 percent—an effect roughly as large as the direct effect on the inspected establishment. Because spillovers extend to multiple nearby establishments, they avert several times as many injuries as the inspection’s direct effect.
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生命早期的残疾福利如何影响成年结果

How Disability Benefits in Early Life Affect Adult Outcomes
我们利用多种变异来源,估计儿童期领取补充保障收入(SSI)对成年结果的影响。利用两个准实验之间和内部的变异,我们发现该项目的效应具有异质性,并随父母对SSI福利的收入反应而变化:当父母不因SSI收入调整劳动供给时(意味着家庭收入增加),该项目对儿童产生正向影响;但当父母通过减少收入来抵消转移支付时(意味着家庭收入保持不变或下降),该项目对儿童的影响为零或为负。这些结果表明,相对于父母的非工作时间,收入对低收入残疾儿童的人力资本生产至关重要。我们估计了一个母亲劳动供给与儿童人力资本形成的模型,以量化这些渠道的相对重要性。我们的发现表明:1)SSI对儿童人力资本的收入效应很大,而以残疾状况为条件提供福利所带来的扭曲激励效应作用有限;2)尽管父母时间可能减少,但父母工作总体上通过增加家庭资源改善了儿童结果。
We estimate the effect of receiving Supplemental Security Income (SSI) in childhood on adult outcomes using multiple sources of variation. Using variation across and within two quasi-experiments, we find that the program has heterogeneous effects that vary with the parental earnings response to SSI benefits: the program has positive effects on children when parents do not adjust their labor supply in response to SSI income (meaning household income increases), but zero or negative effects on children when parents offset the transfer by reducing earnings (meaning household income remains constant or falls). These results suggest that, relative to parent non-work time, income is crucial in the human capital production of low-income children with disabilities. We estimate a model of maternal labor supply and child human capital formation to quantify the relative importance of these channels. Our findings indicate that 1) the income effects of SSI on children's human capital are substantial, with a limited role for perverse incentive effects from conditioning benefits on disability status, and 2) parental work on net improves children's outcomes by increasing household resources, despite the potential decrease in parental time.
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洪泛易发地区联邦房产收购的种族动态

Racial Dynamics of Federal Property Buyouts in Flood-Prone Areas
作为对日益增加的洪水风险的适应措施,对易受洪水影响的房产采取管理性撤退(即“收购”)的做法可能会增加。本文考察种族和族裔在收购谈判结果中的作用,以及这些结果如何影响更长期的邻里变化。我们结合全国范围内关于联邦房产征购、住房销售交易以及限制使用的普查微观数据,估计相对于房产公平市场价值,收购补偿是否存在系统性的种族差异。随后,我们使用追踪个人随时间迁移的数据库,考察参与者迁入社区的质量,以及社区结果如何因种族和项目参与而不同。我们发现,有色人种家庭获得的收购补偿至少比白人家庭低6%。白人参与者迁往质量更高的社区,且境况优于未参与的白人。相反,黑人参与者迁往更差的社区,且境况劣于未参与的黑人。我们的研究凸显了旨在应对日益加剧的气候影响的政府政策,可能如何加重脆弱社区的气候变化负担。
The use of managed retreats, or “buyouts,” of flood-prone properties is likely to grow as an adaptation response to increasing flood risks. This paper investigates the role of race and ethnicity in buyout bargaining outcomes and how those outcomes affect longer-run neighborhood change. We combine nationwide administrative data on federal property acquisitions, housing sales transactions, and restricted-use Census microdata to estimate whether there are systematic differences by race in buyout payments relative to a property’s fair market value. We then use a database tracking individual movement over time to examine the quality of the neighborhoods to which participants move and how neighborhood outcomes vary by race and program participation. We find that the buyout compensation received by households of color is at least 6 percent lower than that received by white households. White participants relocate to higher quality neighborhoods and are better off than white nonparticipants. Black participants, on the other hand, move to worse neighborhoods and are worse off than Black non-participants. Our work highlights how government policy, aimed to address increasing climate impacts, may exacerbate the burden of climate change on vulnerable communities.
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衡量警察拦截中的种族差异:来自遥测出行数据的证据

Measuring Racial Disparities in Police Stops: Evidence from Telemetric Mobility Data
我们利用遥测数据估计驾驶员的种族构成,为评估交通拦截中的种族差异建立一个可靠的反事实。我们使用遥测出行数据以及一种新颖的两阶段校正方法测量驾驶员种族构成,该方法以独立指标——事故涉事驾驶员的种族构成——作为锚定。将其应用于马萨诸塞州警察拦截数据,我们发现非白人驾驶员的被拦截率比其在道路上的出现率高出6.7个百分点。我们表明,未经校准的遥测数据显著低估少数族裔出现率(15.2%对28%),并且未经校准的遥测数据得出的差异是我们首选估计的两倍以上。我们使用这一经过验证的指标评估几种常用差异检验的准确性。我们发现,广泛使用的“社区标准”检验即使限制在地方道路或非通勤时段,也会大幅高估差异。相比之下,较少使用的“事故基准”即使在汇总到覆盖多达94%拦截的更高时间层级时,也能准确捕捉差异。最后,“黑暗之幕”检验给出的估计小于我们的遥测指标,这与其关注差别对待而非更广泛的法律标准——驾驶员构成——相一致。
We establish a reliable counterfactual for evaluating racial disparities in traffic stops using telemetric data to estimate the racial composition of motorists. We measure of motorist racial composition using telemetric mobility data and a novel two-stage correction methodology anchored by an independent measure, racial composition of motorists involved in accidents. Applying this to Massachusetts State Police stops, we find non-White motorists are stopped at rates exceeding their roadway presence by 6.7 percentage points. We demonstrate that uncalibrated telemetric data significantly understates minority presence (15.2 vs. 28 percent), and the uncalibrated telemetric data yields disparities that are over twice the size of our preferred estimates. We use this validated measure to assess the accuracy of several commonly-used disparity tests. We find that the widely used “Community Standard” test dramatically overestimates disparities, even when restricting to local roads or non-commuting hours. In contrast, the less-often used “Crash Benchmark” accurately captures disparities even when aggregated to higher temporal levels covering up to 94 percent of stops. Finally, the “Veil of Darkness” test yields smaller estimates than our telemetric measure, consistent with its focus on disparate treatment rather than the broader legal standard of motorist composition.
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大学里谁重要?熟悉度、能力信号与学生成就

Who Matters in College? Familiarity, Ability Signals, and Student Achievement
本研究考察在向大学过渡期间,当学生遇到新的社会环境以及公开可观察的学术能力信号时,学术表现的社会影响如何演变。我们使用乌干达一所大型、精英且语言和文化高度异质的公立大学的行政数据,并利用学生被随机分配至宿舍这一安排,考察接触同族裔同伴和有奖学金身份的同伴如何影响学术表现。我们发现,更多接触语言和文化背景相似的同伴会改善大学早期的学业成绩,但这些效应随时间消退。相比之下,接触有奖学金的同伴会产生持续的学业表现收益,且其幅度随时间增加。我们的研究情境使我们能够区分同伴的潜在学术能力与公开可观察的能力信号,因为奖学金身份是可见的,而潜在学术准备则不可见。我们发现,无论有奖学金的同伴潜在能力如何,接触他们都会改善学业表现;而接触没有奖学金信号的高能力同伴则没有可检测的影响。这些结果表明,学生对可观察的学术地位信号的反应强于对同伴潜在学术准备的反应。总体而言,我们的发现表明学术影响的来源会随时间演变。
This study examines how social influences on academic performance evolve during transition to university when students encounter new social environments and publicly observable signals of academic ability. Using administrative data from a large, elite, and linguistically and culturally heterogeneous public university in Uganda and exploiting random assignment of students to dormitories, we examine how exposure to coethnic peers and peers with scholarship status affects academic performance. We find that greater exposure to peers from similar linguistic and cultural backgrounds improve academic achievement early in university, but these effects fade over time. In contrast, exposure to scholarship peers generates persistent gains in academic performance that increase in magnitude over time. Our setting allows us to distinguish between peers’ underlying academic ability and publicly observable signals of ability since scholarship status is visible, while underlying academic preparation is not. We find that exposure to scholarship peers improves academic performance regardless of those peers’ underlying ability, while exposure to high-ability peers without a scholarship signal has no detectable effect. These results suggest that students respond more strongly to observable signals of academic standing than to peers’ underlying academic preparation. Taken together, our findings indicate that the sources of academic influence evolve over time.
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微型企业成长时,消费者会更好吗?来自智利向微型企业提供大额贷款的证据

When Microenterprises Grow, Are Consumers Better Off? Evidence from Large Loans to Microenterprises in Chile
对微型企业信贷的评估通常只衡量对借款企业的影响。但它们的顾客呢?如果微型企业销售相对同质化的商品和服务,正如人们常假设的那样,信贷可能只是在不同企业之间重新分配销售额,几乎不会创造消费者收益。在智利的一项随机对照试验中,大额贷款使受处理企业的利润每月增加292美元,增幅为13.4%。顾客调查数据表明,顾客获得的收益甚至更大:消费者剩余每月增加494美元。此外,使用超过125,000家在同一市场经营的非受处理企业样本,我们几乎未发现业务被窃取的证据。因此,信贷扩张带来的福利收益远远超出借款人本身。
Evaluations of microenterprise credit typically measure effects only on borrowing firms. But what about their customers? If microenterprises sell relatively undifferentiated goods and services, as is often hypothesized, credit may simply reallocate sales across firms and create little consumer benefit. In a randomized controlled trial in Chile, large loans increased treated firms’ profits by USD 292 per month, a 13.4% increase. Customer survey data indicate even larger benefits for customers: a gain of USD 494 per month in consumer surplus. Furthermore, using a sample of more than 125,000 non-treated firms operating in the same markets, we find little evidence of business stealing. The welfare gains from credit expansion thus extend well beyond the borrowers themselves.
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超越传统叙事:美洲印第安人的经济异质性与人力资本

Beyond the Conventional Narrative: Economic Heterogeneity and Human Capital Among American Indians
美洲印第安人在经济、教育和健康结果方面存在显著异质性,这种异质性由地理位置(城市与农村)、资源禀赋以及联邦政策的历史经历等因素塑造。尽管如此,有明确证据表明,包括强制迁移、寄宿学校和同化努力在内的历史政策,对这些群体的人力资本发展和代际流动产生了长期负面影响。近几十年来,一些领域有所改善,尤其是在部落行使更大自治权并实施创新经济发展战略的地方。本文强调,“一刀切”的方法不足以分析原住民群体与后来移民后代之间各种结果差异的来源及可能的补救措施。一个独特挑战是,美洲印第安人结果的测量和分析因种族与部落身份认定、数据限制以及定义变化而复杂化。这些挑战可能掩盖真实趋势,并使评估政策或项目的有效性变得困难,凸显了对更精确和分类数据的需求。本文评论了在历史和当代背景下使用和分析该群体数据时需要谨慎和清晰。
There is substantial heterogeneity in economic, educational, and health outcomes among American Indians, shaped by factors such as geographic location (urban vs. rural), resource endowments, and historical experiences with federal policies. Nonetheless, there is clear evidence that historical policies, including forced relocation, boarding schools, and assimilation efforts, have had long-lasting negative effects on human capital development and intergenerational mobility in these populations. Recent decades have seen improvements in some areas, particularly where tribes have exercised greater self-governance and implemented innovative economic development strategies. This paper emphasizes that a “one-size-fits-all” approach is inadequate for analyzing the sources and potential remediation of disparities across various outcomes between Native populations and descendants of later arrivals. A unique challenge is that the measurement and analysis of American Indian outcomes are complicated by issues of racial and tribal identification, data limitations, and changing definitions. These challenges can obscure true trends and make it difficult to evaluate the effectiveness of policies or programs, underscoring the need for more precise and disaggregated data. This essay comments on the need for caution and clarity in the use and analysis of data for this population in both historical and contemporary settings.
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住房财富积累与选举代表

Housing Wealth Accumulation and Electoral Representation
政治代表与个体行为中具有经济后果的差异系统性地一致:最深地融入选举制度的房主,系统性地更善于积累住房财富。使用全国选民—房产数据集,我们发现已实现的住房增值随选举参与单调增加,并且在控制地理、党派、人口特征、财富代理变量和收入后依然稳健。积极参与政治的房主通过购买被低估的房产、增加修缮投资以及溢价出售来主动创造价值,这表明存在个体层面的差异,而非被动的市场暴露。一项原创调查显示,这些房主在人格特质上也存在系统性差异,指向与政治参与和住房市场表现都相关的更深层个体差异。
Political representation is systematically aligned with economically consequential differences in individual behavior: homeowners who are most deeply incorporated into electoral institutions are systematically more effective at accumulating housing wealth. Using a nationwide voter-property dataset, we find that realized housing appreciation increases monotonically with electoral participation, robust to controls for geography, partisanship, demographics, wealth proxies, and income. Politically engaged homeowners actively generate value by purchasing undervalued properties, investing more in improvements, and selling at a premium, indicating individual-level differences rather than passive market exposure. An original survey shows that these homeowners also systematically differ in personality traits, pointing to deeper individual differences associated with both political engagement and housing-market performance.
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社会资本与创新:来自Facebook好友网络的证据

Social Capital and Innovation: Evidence from Facebook Friendship Networks
利用Facebook好友数据,我们研究社会资本的三个方面如何塑造创新活动。我们发现,在解释创新方面最重要的社会资本方面是经济连通性(EC)——即高收入好友所占比例。经济连通性每提高一个标准差,在有专利活动的邮政编码区中,人均专利数量增加97%;在有突破性专利的邮政编码区中,人均突破性专利数量增加45%。反向因果检验、发明者内部迁移设计,以及利用水力压裂驱动的经济冲击影响非本地好友的准实验,均支持因果解释。机制检验提供的证据与融资渠道相一致。
Using Facebook friendship data, we study how three aspects of social capital shape innovative activity. We find that the most important aspect of social capital in explaining innovation is Economic Connectedness (EC)--the share of high-income friendships. One standard deviation greater EC is associated with 97% more patents per capita among patenting ZIP Codes and 45% more breakthrough patents per capita among ZIP Codes with breakthrough patents. Reverse-causality tests, a within-inventor relocation design, and a quasi-experiment using fracking-driven economic shocks to non-local friends support a causal interpretation. Mechanism tests provide evidence consistent with a financing channel.
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(错误)衡量不确定性:概率预期中的堆积

(Mis)measuring Uncertainty: Bunching in Probabilistic Expectations
概率预期问题常用于衡量主观不确定性,但受访者经常将全部概率赋予某一结果。我们表明,这种堆积在一定程度上是调查人为产物,而非真正的确定性。在(在线)欧洲央行消费者预期调查和(面对面)西班牙家庭金融调查中,金融素养较低的受访者中堆积更高,并随面板参与时间增加。两项调查设计变化提供了更强证据:执行中立的访员协议使堆积降低约15个百分点,随后的问卷重新设计又使其降低18个百分点。标准化后,访员层面的变异也有所下降。这些发现意味着,概率预期中的退化回答可能反映任务负担和调查实施方式,导致标准指标高估确定性并低估不确定性。
Probabilistic expectation questions are often used to measure subjective uncertainty, but respondents frequently assign all probability to one outcome. We show that this bunching is partly a survey artifact rather than genuine certainty. In the (online) ECB Consumer Expectations Survey and the (in person) Spanish Survey of Household Finances, bunching is higher among less financially literate respondents and increases with panel tenure. Two survey-design changes provide stronger evidence: enforcing neutral interviewer protocols reduces bunching by about 15 percentage points, and a later questionnaire redesign reduces it by a further 18 percentage points. Interviewer-level variation also falls after standardization. These findings imply that degenerate responses in probabilistic expectations can reflect task burden and survey administration, causing standard measures to overstate certainty and understate uncertainty.
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战略性主权:美以打击与伊朗反政权抗议的逆转

Strategic Sovereignty: U.S.–Israeli Strikes and the Reversal of Anti-Regime Protest in Iran
外国干预能否将国内动员重新导向它试图削弱的那一政权?我们研究2026年美国和以色列对伊朗的打击,该打击发生在全国性反政府起义期间。我们将高频地理编码的抗议数据与美以打击的地理编码记录相结合,记录了政治动员的急剧逆转。打击之前,反政府抗议广泛存在,并在2月期间因国内镇压和不断强化的“外国代理人”叙事而大幅消退。打击之后,亲政府集会以及反对美国和以色列的抗议在全国蔓延。利用各县首次暴露于美以打击的精确地点和交错时间,我们发现抗议活动总量几乎没有变化,但从反政府抗议急剧转向亲政府抗议。美国和以色列领导人的公开表态日益与抗议运动保持一致,而伊朗官员则将骚乱描绘为外国支持。这些模式与战略性主权相一致:公开的外国干预可能使国内反对派更容易被描绘为与外部敌人一致,从而削弱其合法性,并将集体行动重新导向捍卫国家。
Can foreign intervention redirect domestic mobilization toward the regime it seeks to weaken? We study the 2026 U.S.–Israeli strikes on Iran, which occurred amid a nationwide anti-government uprising. Combining high-frequency geocoded data on protests with geocoded records of U.S.–Israeli strikes, we document a sharp reversal in political mobilization. Anti-government protest was widespread before the strikes and receded sharply through February amid domestic repression and an intensifying “foreign-agent” narrative. Following the strikes, pro-government rallies and protests against the United States and Israel spread across the country. Exploiting the precise location and staggered timing of counties’ first exposure to a U.S.–Israeli strike, we find little change in total protest activity but a sharp shift from anti-government to pro-government protest. Public statements by U.S. and Israeli leaders increasingly aligned themselves with the protest movement, while Iranian officials portrayed the unrest as foreign-backed. These patterns are consistent with strategic sovereignty: overt foreign intervention can make domestic opposition easier to portray as aligned with an external adversary, weakening its legitimacy and redirecting collective action toward defense of the state.
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发明之花:专利权的经济影响

Flowers of Invention: The Economic Impacts of Patent Rights
专利权如何影响创新和下游生产?美国于1985年对植物生物技术引入专利保护,而该保护因作物的繁殖结构不同而对作物产生差异化影响。利用植物花结构的这一独特特征以及一个新的作物特定技术开发数据集,我发现专利权的引入增加了新型植物品种的开发。技术开发由私营部门研究投资的迅速增加所驱动,并伴随对某些非生物农业技术创新的正向溢出效应,同时导致作物产量提高。然而,专利权可能给技术消费者带来潜在显著成本,并扭曲下游生产。尽管如此,尽管种子支出更高,因其作物构成而更受专利法变化影响的美国县,农业土地价值和利润均有所增加。总体而言,结果表明专利保护的前景刺激了创新,并提高了下游生产率和利润。
How do patent rights affect innovation and downstream production? Patent protection was introduced for plant biotechnology in the United States in 1985, and it affected crops differentially depending on their reproductive structures. Exploiting this unique feature of plant flower structure and a new dataset of crop-specific technology development, I find that the introduction of patent rights increased the development of novel plant varieties. Technology development was driven by a rapid increase in private sector research investment, was accompanied by positive spillover effects on innovation in certain non-biological agricultural technologies, and led to an increase in crop yields. Patent rights, however, may come with potentially significant costs to the consumers of technology and distortions to downstream production. Nevertheless, despite higher spending on seeds, US counties that were more exposed to the change in patent law because of their crop composition experienced an increase in agricultural land values and profits. Taken together, the results suggest that the prospect of patent protection spurred innovation and increased downstream productivity and profits.
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城市更新与强制搬迁的福利影响:来自芝加哥HOPE VI拆除的证据

The Welfare Impacts of Urban Renewal and Forced Relocation: Evidence from Chicago’s HOPE VI Demolitions
本文研究美国最大的空间再开发努力之一:HOPE VI公共住房拆除。我们以芝加哥为对象,估计了一个社区选择模型,该模型结合了追踪被迫迁移公共住房居民的行政记录与捕捉全市分选和价格的美国普查局数据。拆除产生了由搬迁成本驱动的巨大福利损失,并部分被住房券抵消。拆除还推高了住房价格并重塑了社区构成,收益集中在较高收入房主中。反事实表明,更慷慨的住房券和咨询项目可以缓解但不能消除被搬迁居民的损失,而扩大再开发通过一般均衡效应带来更大的全市收益。
This paper studies one of the largest spatial redevelopment efforts in the United States: HOPE VI public housing demolitions. Focusing on Chicago, we estimate a neighborhood choice model combining administrative records tracking displaced public-housing residents with Census Bureau data capturing citywide sorting and prices. Demolitions generate large welfare losses driven by displacement costs, partially offset by housing vouchers. Demolitions also raise housing prices and reshape neighborhood composition, with gains concentrated among higher-income homeowners. Counterfactuals show that more generous vouchers and counseling programs mitigate but do not eliminate displaced residents' losses, while expanded redevelopment yields larger citywide gains through general-equilibrium effects.
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食品标签政策:总体影响与跨类别异质性

Food Labeling Policies: Aggregate Impacts and Heterogeneity Across Categories
我们研究智利实施的一项包装正面标签政策的总体效应和异质性效应。我们发现,消费者将糖和热量摄入分别减少了9%和6%。在需求侧,标签促使消费者在类别内部进行替代,而非在不同类别之间转换。当标签提供新信息时,类别内反应更为明显。在供给侧,我们观察到在监管阈值处出现堆积,且不同类别之间存在显著异质性,这与产品重新配方的成本差异相一致。我们得出结论,考虑政策反应的异质性对于有效的政策设计至关重要。
We study the aggregate and heterogeneous effects of a front-of-package labeling policy implemented in Chile. We find that consumers reduced their sugar and caloric intake by 9% and 6%, respectively. On the demand side, labels prompt consumers to substitute within categories rather than switching between categories. Within-category responses are more pronounced when labels provide new information. On the supply side, we observe bunching at regulatory thresholds, with substantial heterogeneity across categories, consistent with differing costs of product reformulation. We conclude that considering policy-response heterogeneity is key for effective policy design.
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她眼中的城市:印度城市公共场所中的性别骚扰

The City Through Her Eyes: Gender-Based Harassment in Public Spaces in Urban India
公共场所中的性别骚扰通过受害经历直接影响女性,并通过恐惧间接影响女性。我们在印度城市中衡量这两种效应,当地普遍认为骚扰无处不在。我们调查了在新德里和班加罗尔公共场所招募的4000多名女性,记录到新德里65%的女性和班加罗尔29%的女性在过去一年中在公共场所经历过骚扰。过去一年中,猥亵、跟踪或性侵犯的发生率在新德里为41%,在班加罗尔为14%。频繁但较不严重的骚扰形式以及较少见但更严重的形式都会引发女性焦虑;例如,新德里46%的女性和班加罗尔25%的女性报告在公共场所时对性侵犯感到极度焦虑。并非所有间接效应都与经历骚扰的跨城市差异一致:在两座城市中,约70%的女性报告对骚扰的恐惧影响她们是否工作。最后,在测量方面,我们表明在骚扰较少见、受害者需要回忆的事件更少且更久远时,测得的流行率对问卷设计更敏感。
Gender-based harassment in public spaces affects women directly through victimization and indirectly through fear. We measure these dual effects in urban India, where harassment is widely regarded as pervasive. Surveying over 4,000 women recruited in public spaces in New Delhi and Bengaluru, we document that 65% of women in New Delhi and 29% in Bengaluru experienced harassment in public spaces in the past year. Past-year prevalence of groping, stalking, or sexual assault is 41% in New Delhi and 14% in Bengaluru. Both frequent, less severe forms of harassment and rarer, more severe forms generate anxiety among women; for example, 46% of women in New Delhi and 25% in Bengaluru report feeling extremely anxious about sexual assault when in public spaces. Not all of the indirect effects track the across-city variation in experienced harassment: in both cities, roughly 70\% of women report that fear of harassment affects whether they work. Finally, on measurement, we show that measured prevalence is more sensitive to questionnaire design where harassment is less common and victims have fewer and less recent incidents to recall.
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一项罪恶禁令,而非罪恶税?SNAP含糖饮料限制的消费与归宿

A Sin Ban, Not a Sin Tax? Consumption and Incidence of SNAP Soda Restrictions
我们研究首个在全州范围内实施的SNAP含糖饮料和糖果限制。受限支出下降11%;热量和糖摄入下降5%至8%。替代是非对称的:符合条件的果汁饮料部分抵消了汽水消费下降,而糖果限制减少了符合条件零食的购买。零售商几乎不改变货架价格。失去SNAP的销售税豁免仅使含税价格上升1.9%。在SNAP使用率更高的零售商处,支出下降更大,在线渠道亦然,因为在线结账时的污名感较弱。若全国采用,其自付负担仅为等效消费税的13%,而福利收益每年约达到11亿美元。
We study the first statewide SNAP restrictions on sweetened beverages and candy. Restricted spending falls 11 percent; calories and sugar fall 5–8 percent. Substitution is asymmetric: eligible fruit drinks partly offset soda declines, while candy restrictions reduce purchases of eligible snacks. Retailers barely change shelf prices. Losing SNAP’s sales-tax exemption raises tax-inclusive prices only 1.9 percent. Spending declines are larger at retailers with greater SNAP use and remain large online, where checkout stigma is less salient. Nationwide adoption would impose 13 percent of the out-of-pocket burden of an equivalent excise tax, while welfare gains reach roughly $1.1 billion annually.
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当资源遇见关系:对低收入学生个性化支持的回报

When Resources Meet Relationships: The Returns to Personalized Supports for Low-Income Students
低收入家庭的孩子面临课堂之外的障碍,这些障碍阻碍学习并限制经济流动机会。我们研究“Communities In Schools”(CIS)项目,该项目在高贫困学校安置协调员,将有困难的学生与个性化支持联系起来。协调员将学生匹配到满足其学业、行为和基本需求的资源——例如辅导、心理健康咨询和住房稳定。CIS是美国同类项目中最大的,每年覆盖200万名学生。利用CIS的分阶段推广,我们发现该项目提高了有困难学生的考试成绩。这些收益持续存在,提高了高中毕业率和成年后收入。考试成绩改善仅解释了CIS对高中毕业影响的一半左右;其余部分反映了出勤和行为等非认知结果的进步。与CIS强调个性化相一致,协调员针对不同学生需求量身定制服务,但不同需求的学生经历了可比拟的长期收益。在学校中安置一位可信赖的成年人,并以项目和服务网络为后盾,可能提供一种可扩展的改善经济流动性的方式。
Children from low-income families face barriers outside the classroom that impede learning and limit opportunities for economic mobility. We study Communities In Schools (CIS), a program that places coordinators in high-poverty schools to connect struggling students with personalized support. Coordinators match students to resources that address academic, behavioral, and basic needs—such as tutoring, mental health counseling, and housing stabilization. CIS is the largest program of its kind in the U.S., reaching 2 million students annually. Using the staggered rollout of CIS, we find that the program boosts test scores for struggling students. These gains persist, raising high school completion and adult earnings. Improvements in test scores explain only about half of CIS's impact on high school graduation; the remainder reflects progress on non-cognitive outcomes such as attendance and behavior. Consistent with CIS's emphasis on personalization, coordinators tailor services to distinct student needs, yet students with different needs experience comparable long-run gains. Placing a trusted adult in schools, backed by a network of programs and services, may offer a scalable way to improve economic mobility.
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戴蒙德-米尔利斯遇见西姆斯:理性疏忽下的最优税收

Diamond-Mirrlees meets Sims: Optimal Taxation with Rational Inattention
我们研究当消费者具有理性疏忽且规划者将注意力成本内部化时的最优商品税。在我们的设定中,消费者可能对税收反应不足,可能在不同商品间不均匀地配置注意力,并可能表现出稀疏行为或心理账户。我们的主要结果是,这未必改变税收设计:在一个基准情形中,无论疏忽程度和内生性如何,最优税收都满足与经典公共财政相同的充分统计量公式。偏离该基准时,我们为状态依存税提供了一种双重理由,并为税收显著性提供了新的视角;但我们仍未发现近期行为公共财政研究中所强调的那些调整存在空间。
We study optimal commodity taxation when consumers are rationally inattentive and the planner internalizes their attention costs. In our setting, consumers may underreact to taxes, may allocate attention unevenly across goods, and may display sparse behavior or mental accounting. Our main result is that this need not change tax design: in a benchmark, optimal taxes satisfy the same sufficient-statistics formulas as in classical public finance, regardless of the extent and endogeneity of inattention. Away from this benchmark, we offer a dual rationale for state-dependent taxes and a new lens on tax salience; but we still find no room for the adjustments emphasized in recent work on behavioral public finance.
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正在消失的美元便利性?

Disappearing Dollar Convenience?
我们衡量过去五年美元安全资产的便利收益率以回答这一问题。我们发现,在美元资产集合内部,安全资产便利收益率在2025年与2019年大致相同,且预计这些水平将在未来十年持续。在全球范围内,美元安全资产(尤其是美国国债)相对于其他货币安全资产的溢价已显著下降。还有证据表明,美元回购目前是便利收益率最高的美元安全资产。简言之,我们的答案是:就国内流动性目的而言,没有消失;就全球流动性目的而言,确实消失了。
We measure the convenience yield on dollar safe assets over the last 5 years to answer this question. We find that within the set of U.S. dollar assets, safe asset convenience yields are about the same in 2025 as they were in 2019, and these levels are expected to persist for the next decade. Across the globe, the richness of U.S. dollar safe assets, particularly Treasurys, compared to the safe assets of other currencies have fallen considerably. There is also evidence that the U.S. dollar repo is currently the highest convenience dollar safe asset. In short, our answer is, no for domestic liquidity purposes, and yes for global liquidity purposes.
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大规模移民时代的移民与儿童死亡率

Immigration and Child Mortality during the Age of Mass Migration
19世纪末,美国人担心拥挤的移民社区正在通过工业城市传播疾病。我们使用新构建的马萨诸塞州1860年至1915年城镇层面面板数据来研究这一说法;该背景特别适合这一检验,因为其早期生命登记系统使得在全国登记普及之前能够一致地测量死亡率。使用基于历史定居模式的移动份额工具变量策略,我们估计了当地移民暴露对死亡率的影响。相关问题不是移民家庭本身是否经历了更高死亡率,而是移民是否更广泛地改变了当地的疾病环境。我们发现,外国出生人口份额上升显著提高了婴儿和儿童死亡率,其中婴儿效应不成比例地落在新生儿后期。按父母出生地划分的出生构成的机械变化仅解释了估计效应的一部分,这意味着结果并非主要由移民出生婴儿的更高死亡率驱动。相反,证据与以下情况一致:接触移民增加、传染病以及向本土出生父母子女的溢出效应。这些发现凸显移民是塑造拥挤高死亡率环境中死亡率转变的一个因素。
In the late nineteenth century, Americans feared that crowded immigrant neighborhoods were spreading disease through industrial cities. We study this claim using newly constructed town-level panel data from Massachusetts, 1860 to 1915, a setting uniquely suited to this exercise because its early vital registration system allows consistent measurement of mortality before national registration became widespread. Using a shift-share instrumental variable strategy based on historical settlement patterns, we estimate the effect of local exposure to immigration on mortality. The relevant question is not whether immigrant families themselves experienced higher mortality, but whether immigration altered the local disease environment more broadly. We find that increases in the foreign-born share significantly raised infant and child mortality, with the infant effect falling disproportionately on the post-neonatal period. Mechanical changes in the composition of births by parent nativity account for only a portion of the estimated effect, implying that the results are not driven primarily by higher mortality among immigrant births. Instead, the evidence is consistent with increased exposure to immigrants, communicable disease, and spillovers to children of native-born parents. These findings highlight immigration as one factor shaping the mortality transition in crowded high-mortality environments.
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测量革命?人工智能时代的可信测量与推断

The Measurement Revolution? Credible Measurement and Inference in the Age of AI
人工智能(AI)正在改变经济学中的测量。AI模型以低成本将文本和图像等非结构化数据转化为结构化变量,使此前无法实现的测量能够大规模进行。这把瓶颈从寻找某个现象的任一可扩展测量,转变为在许多看似合理的测量之间进行选择,而这些选择可能支持不同的实证结论。本综述为应对这一转变提供指导。我们描述了AI进入测量流程的三个阶段——发现、构念定义和观测——以及每个阶段对研究者的要求。我们认为,使用AI生成变量进行可信推断需要恰当设计的验证:将测量锚定于明确标准,而不是非正式地声称某个代理变量是合理的。然后,我们考察验证样本如何在AI预测存在任意偏误时仍支持有效推断,以及当无法获得随机验证样本时可以采取什么措施。
Artificial intelligence (AI) is transforming measurement in economics. AI models convert unstructured data, such as text and images, into structured variables at low cost, making previously prohibitive measurement feasible at scale. This shifts the bottleneck from finding any scalable measure of a phenomenon to choosing among many plausible ones, which may support different empirical conclusions. This review provides guidance for navigating that shift. We describe three stages at which AI enters the measurement pipeline—discovery, construct definition, and observation—and what each demands of researchers. We argue that credible inference with AI-generated variables requires appropriately designed validation: anchoring measurement to explicit criteria, rather than informal claims that a proxy is reasonable. We then examine how validation samples support valid inference even when AI predictions are arbitrarily biased, and what can be done when a random validation sample is unavailable.
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联邦土地:经济产权视角

The Federal Lands: An Economic Property Rights Perspective
美国联邦政府拥有并管理472,892,659英亩土地,占美国本土48州土地面积的21%,是该国最大的土地所有者。该资源作为集体资源——联邦土地——持有和管理,依据的是对“多重利用”原则的政治和官僚解释,以及一般而言的最大持续产量这一生物学目标。相比之下,美国大多数其他自然资源的获取、交换和投资都通过私人产权和市场进行。尽管该资源规模巨大,经济学家对其经济和福利影响的关注相对有限。本文旨在提出经济含义并鼓励更多经济分析。讨论总结了截至1891年联邦土地私有化的情况,那时开始保留联邦土地。文献表明,在1870年至1957年大多数土地被保留期间,私人开发并未造成可证明的市场失灵或资源稀缺加剧。因为土地不可移动,且可观察的私人产权本可以被界定,任何外部性都可以通过庇古式限制或科斯式交换来解决。联邦所有并非显然必要。进步时代改革者出于对即将来临的资源耗竭的担忧,呼吁由政府官员进行科学的、持续产量的管理。这一制度变迁在经济上很重要。如Dixit等人所概述的,私人权利持有者拥有高效利用资源的高能激励,而机构官员的决策缺乏这种激励,因为他们不持有可交换产权,也不直接承担其行动的经济成本与收益。具有重大影响的公共品供给可能是一种抵消,但这些公共品并未被测量以用于权衡计算。遵循Krueger,本文提出一个寻租框架,用于比较经济产权与政治管理下的结果。分析表明:a)在其他条件相同的情况下,联邦土地的生产价值将低于可比的私人土地;b)联邦土地管理对经济成本与收益变化的反应会更弱。公共品可能会在高舒适性、娱乐和生态区域被提供,但主导性的“多重利用”管理原则没有提供分配或定期结果评估与调整的客观标准。文中还提供了文献综述以及当代联邦森林、牧场和油气土地的数据。
The US federal government owns and administers 472,892,659 acres or 21% of the land area of the lower 48 states, the country’s largest landowner. The resource is held and managed as a collective resource, the Federal Lands, through political and bureaucratic interpretation of the Multiple Use principle and generally, the biological aim of maximum sustained-yield. By contrast, access, exchange, and investment for most other US natural resources are through private property rights and markets. Despite the magnitude of the resource, economists have devoted relatively limited attention to the economic and welfare impact. The objective is to suggest economic implications and to encourage additional economic analyses. The discussion summarizes federal lands privatization through 1891, when withholding of federal lands began. The literature reveals no demonstratable market failure or increased resource scarcity from private exploitation between 1870 and 1957 when most lands were withheld. Because land was nonmobile and observable private property rights could have been assigned and any externalities addressed via Pigouvian restrictions or Coasean exchange. Federal ownership was not obviously required. Progressive Era reformers, driven by concerns of impending resource depletion, called for scientific, sustained-yield management by government officials. The institutional change is economically important. As outlined by Dixit and others, private rights holders have high powered incentives for efficient resource use that are lacking in decision making by agency officials who do not hold exchangeable property rights and do not directly bear the economic costs and benefits of their actions. Consequential public goods delivery could be an offset, but these are not measured for tradeoff calculations. Following Krueger, a rent-seeking framework is presented for comparing outcomes with economic property rights and political management. The analysis suggests that a.) federal lands will have lower production value than comparable private, all else equal; (b). federal lands management will be less responsive to shifts in economic costs and benefits. Public goods may be provided for high amenity, recreation, and ecological areas, but the dominant Multiple Use management principle provides no objective criteria for allocation or for periodic outcome assessment and adjustment. A literature review and data for contemporary federal forests, range, and oil and gas lands are provided.
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劳动力市场结果中的遗传力与社会互动:来自美国双胞胎总体的证据

Heritability and Social Interaction in Labor Market Outcomes: Evidence from the Population of Twins in the United States
我们使用2000年人口普查中作为青少年观测到的44,000对双胞胎的数据,并将其与20年后的收入相连接,以研究劳动力市场结果的遗传力。我们扩展了经典双胞胎设计(CTD),该设计通过同卵与异卵双胞胎之间的对比来识别遗传力;我们的扩展适用于分析者无法观测同卵/异卵类型,但能够测量同性双胞胎和异性双胞胎结果的情形。我们还允许存在一个家庭和性别特定的成分,它影响同性兄弟姐妹,但仅部分被异性兄弟姐妹共享。我们的扩展模型通过同性双胞胎与异性双胞胎相对于兄弟姐妹的差分中的差分来识别遗传力。估计结果显示对数收入具有很强的遗传力(h²约0.36)。使用AKM(Abowd等,1999)分解,将对数收入中个人特定成分与雇主特定工资溢价分离后,我们发现两个成分都具有遗传性。然而,雇主工资溢价的遗传力主要由在同一家公司工作的同性双胞胎驱动,这表明社会互动可能导致对收入中遗传成分的高估。排除一起工作的兄弟姐妹后,对数收入遗传力的估计会低15%。在基于CTD的其他社会结果(如教育)遗传力估计中,可能存在类似的偏误。
We use data on 44,000 twin pairs observed as adolescents in the 2000 Census, linked to their earnings 20 years later, to study the heritability of labor market outcomes. We extend the Classical Twins Design (CTD), which identifies heritability from contrasts between monozygotic and dizygotic twins, to settings where an analyst does not observe zygosity but can measure outcomes for same-sex and opposite-sex twins. We also allow for the presence of a family- and sex-specific component affecting same-sex siblings but only partly shared by opposite-sex siblings. Our extended model identifies heritability from the difference-in-differences of same-sex vs. opposite-sex twins vs. siblings. The estimates indicate strong heritability (h² approximately 0.36) of log earnings. Using an AKM (Abowd et al., 1999) decomposition that separates the person-specific component of earnings from employer-specific pay premiums, we find that both components are heritable. The heritability of employer pay premiums, however, is mainly driven by same-sex twins who work at the same firm, suggesting that social interactions may lead to an over-estimate of the genetic component in earnings. Excluding siblings who work together leads to estimates of the heritability of log earnings that are 15% lower. Similar biases may be present in CTD-based estimates of heritability for other social outcomes like education.
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自动化与最优税收:一种基于任务的理论

Automation and Optimal Taxation: A Task-Based Theory
我们在一个基于任务的自动化模型中刻画最优劳动和资本所得税。在可自动化任务中,工人和机器是完全替代品,这些任务从技能分布底部一直延伸到某一门槛。工人在广延边际上供给劳动。资本家以有限弹性供给机器。在这个一般均衡自动化经济中,最优税收公式采取标准的局部均衡形式。然而,由于工资和资本回报是内生的,自动化会显著改变最优税率。我们将模型校准到美国工资分布和自动化暴露。在均衡中,中产阶级被自动化程度最高,机器密集度在工资第40百分位附近达到峰值。相对于无自动化基准,最优劳动税制更具累进性:底部EITC补贴更大,中间税率更低,顶部税率更高。最优资本税相当可观,但不受自动化影响。
We characterize optimal labor and capital income taxation in a task-based model of automation. Workers and machines are perfect substitutes in automatable tasks, which run from the bottom of the skill distribution up to a threshold. Workers supply labor on the extensive margin. Capitalists supply machines at a finite elasticity. In this general-equilibrium automation economy, optimal tax formulas take canonical partial-equilibrium forms. Yet automation substantially changes optimal tax rates because wages and capital returns are endogenous. We calibrate the model to the US wage distribution and automation exposure. In equilibrium, the middle class is the most automated, with machine intensity peaking around the 40th wage percentile. Relative to a no-automation benchmark, the optimal labor tax schedule is more progressive: a larger EITC subsidy at the bottom, lower taxes in the middle, and higher taxes at the top. The optimal capital tax is sizable but unaffected by automation.
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信息是否影响社会保障残疾福利与提前退休福利之间的选择?

Does Information Influence the Choice between Social Security Disability and Early Retirement Benefits?
我们考察信息如何影响62岁至完全退休年龄之间人群在社会保障残疾保险(DI)和老年保险(OAI)福利之间的选择。我们发现,收到初始社会保障报表——该报表向接收者提供可从DI和OAI获得的个性化估计福利金额——会提高那些有工作限制健康状况或工作能力指数较低者申请这两个项目的概率,而且这种反应集中在距离完全退休年龄更远的人群中。DI申请的增加分布在仅申请DI和同时申请两个项目之间。
We examine how information affects the choice between Social Security Disability Insurance (DI) and Old-Age Insurance (OAI) benefits for people between 62 and full retirement age. We find that receiving an initial Social Security statement, which provides recipients with personalized estimated benefit amounts available from DI and OAI, increases the probability of applying for both programs among those with a work-limiting health condition or a low work ability index, and this response is concentrated among people who are further from full retirement age. The increase in DI applications is split between applications for DI only and applications for both programs.
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我们为你提供保障:加州快餐最低工资的机构层面证据

We've Got You Covered: Establishment-Level Evidence on California's Fast-Food Minimum Wage
我们研究加州20美元快餐最低工资的就业效应。在常用汇总数据集中评估该政策面临两个挑战:覆盖范围基于无法识别的60家门店连锁规模门槛;以及用于识别快餐店的行业代码存在测量误差。我们使用机构层面数据来应对这些挑战。我们发现负面就业效应的证据,但它们集中在小型连锁店中;在该群体中,政策还减缓了进入并增加了退出。因此,快餐最低工资的主要影响是使小型连锁店处于不利地位,尽管迄今为止总体就业效应不大。
We study the employment effects of California’s $20 fast-food minimum wage. Evaluating this policy poses two challenges in commonly used aggregate datasets: coverage is based on 60-establishment chain-size threshold that cannot be identified; and there is measurement error in the industry codes used to identify fast-food restaurants. We address these challenges using establishment-level data. We find evidence of negative employment effects, but they are concentrated among small chains, among which the policy also slowed entry and increased exit. Thus, the primary effect of the fast-food minimum wage was to disadvantage small chains, albeit with modest overall employment effects thus far.
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知情选择:职业建议中的性别差距

Informed Choices: Gender Gaps in Career Advice
本文提供了首个因果证据,表明性别会影响个人所收到的职业信息。我们开展了一项大规模实地实验,真实的大学生向10,000名在职专业人士寻求职业信息。我们随机化专业人士收到的是来自男学生还是女学生的信息。当学生广泛询问职业信息时,女学生收到的关于工作/生活平衡的信息显著多于男学生。当学生明确询问工作/生活平衡时,这种性别差异仍然存在。对专业人士的调查表明,与女性讨论工作/生活平衡存在非利他动机。结合实地实验的发现和信息干预的结果,我们得出结论:所收到工作/生活平衡信息中的性别差距,对职业意向中的性别差距具有重要影响。
This paper provides the first causal evidence that gender affects the information an individual receives about careers. We conduct a large-scale field experiment in which real college students seek career information from 10,000 working professionals. We randomize whether a professional receives a message from a male or a female student. When students ask broadly for information about a career, female students receive substantially more information on work/life balance than male students. This gender difference persists when students specifically ask about work/life balance. A survey of professionals suggests non-altruistic motives for discussing work/life balance with women. Combining findings from the field experiment and results from an information intervention, we conclude that gender gaps in information received about work/life balance are consequential for gender gaps in career intentions.
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《平价医疗法案》拯救生命了吗?

Did the Affordable Care Act Save Lives?
尽管近期研究提供了证据表明《平价医疗法案》(ACA)的医疗补助扩展降低了死亡率,但尚无证据表明ACA在医疗补助扩展之外的净效应对死亡率的影响。这是一个重要的知识空白,因为ACA显著提高了未扩展州的医疗保险覆盖率。在本文中,我们利用ACA带来的医疗保险覆盖率大幅提高,考察ACA和医疗补助扩展对死亡率的影响。与先前仅依赖医疗补助扩展的地理差异来估计扩展净效应的研究不同,我们使用一种新颖的实证方法,使我们能够考察ACA在医疗补助扩展之外的净效应对死亡率的影响、医疗补助扩展的增量效应,以及包括医疗补助扩展在内的ACA总体效应。我们使用NHIS关联死亡率档案(LMF)的纵向数据,以及40至58岁全国代表性样本,结合双重差分和三重差分研究设计,获得ACA对死亡率影响的估计。我们发现没有证据表明医疗补助扩展对死亡率有有益影响,但确实发现ACA在医疗补助扩展之外的净效应降低了死亡率。
While recent research has provided evidence that the Medicaid expansions of the Affordable Care Act (ACA) reduced mortality, there is no evidence on the effect of the Affordable Care Act (ACA) net of the Medicaid expansions on mortality. This is an important gap in knowledge because the ACA significantly increased health insurance coverage in non-expansion states. In this article, we exploit the large increase in health insurance coverage brought forth by the ACA to examine the effect of the ACA and Medicaid expansions on mortality. Unlike prior studies that relied solely on geographic variation in Medicaid expansions to estimate the net effect of the expansion, we use a novel empirical approach that allows us to investigate the effect of the ACA net of Medicaid expansion on mortality, the incremental effect of the Medicaid expansion, and the overall effect of the ACA including Medicaid expansion. We use longitudinal data from the NHIS Linked Mortality Files (LMF) and a nationally representative sample of 40 to 58-year-olds combined with a difference-in-differences and a difference-in-differences-in-differences research design to obtain estimates of the effect of the ACA on mortality. We find no evidence that the Medicaid expansions had a beneficial effect on mortality but do find that the ACA net of Medicaid expansion reduced mortality.
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新冠疫情是否改变了黑人社区的创业缺口?来自创业制图项目的证据

Did COVID Change the Black Neighborhood Startup Deficit? Evidence from the Startup Cartography Project
受William Julius Wilson关于集中劣势的论述启发,我们考察对黑人社区创业率低的一种地方贫困陷阱解释。使用来自38个州的注册数据,我们记录了长期存在的黑人社区创业缺口。在提高了经济活动预期的冲击中,该缺口在2020年急剧逆转,尤其是在先前缺口较大的地方。虽然总体盈余逐渐减弱,但在高缺口的黑人社区,相对创业率仍保持较高水平,而且面向社区的创业在2024年前也仍然较高。综合来看,这些模式与向更高活动均衡的部分持续转变相一致。
Motivated by William Julius Wilson’s account of concentrated disadvantage, we examine a local poverty-trap interpretation of low entrepreneurship in Black neighborhoods. Using registration data from 38 states, we document a long-standing Black neighborhood startup deficit. Amid shocks that raised expectations of greater economic activity, the deficit reverses sharply in 2020, particularly where pre-existing deficits were larger. While the overall surplus attenuates, relative entrepreneurship remains elevated in high-deficit Black neighborhoods, and neighborhood-oriented entrepreneurship also remains elevated through 2024. Together, these patterns are consistent with a partially sustained shift toward a higher-activity equilibrium.
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资产价格中的相关性忽视

Correlation Neglect in Asset Prices
我们记录了股市收益率之间一种强烈的负序列相关:i) 季度第二个月与 ii) 随后一个季度的第一个月。这种模式出现的原因是,投资者未能充分识别季度第二个月较晚发布的盈利公告所传达的、可预测地重复的总体盈利“新闻”。被忽视的相关性导致过度反应,而当新一季度的盈利公布时,这种过度反应又得到纠正。与该假说一致,季度第二个月的收益率与前一个月的收益率正相关,并且当这两个月公布的盈利更相似时,收益率模式会放大。调查数据和行业层面收益率进一步支持这一机制。这些结果为即使在高技能、有财务激励的决策者中也存在相关性忽视提供了证据,凸显其作为一种行为现象的重要性。
We document a strong negative serial correlation between stock market returns in i) the second month of a quarter and ii) the first month of the subsequent quarter. This pattern arises as investors fail to fully recognize the predictably repetitive aggregate earnings “news” conveyed by the late earnings announcements in the second month of a quarter. The neglected correlation leads to overreaction, which is in turn corrected when earnings of a new quarter are announced. Consistent with this hypothesis, returns in the second month of a quarter positively correlate with those of the preceding month, and the return pattern amplifies when earnings announced in these two months are more similar. Survey data and industry-level returns lend further support to this mechanism. These results provide evidence of correlation neglect even among sophisticated, financially incentivized decision-makers, underscoring its importance as a behavioral phenomenon.
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资产私有化作为代际再分配

Asset Privatization as Intergenerational Redistribution
快速经济增长会造成各代人终身收入之间的巨大差异。本文考察快速增长经济体中,补贴性地获得增值公共资产所产生的代际再分配。我们表明,在未来的增长尚未完全资本化到市场价值之前,让当前世代以补贴方式获得这些资产,会赋予他们对随后经济增长的早期索取权,从而将资源从未来世代再分配给当前世代。在住房私有化的背景下,私有化住房随后的资本利得使房主能够换购更高档住房,进一步放大了住房需求、房价和代际再分配。我们在一个校准到中国住房私有化的定量均衡模型中,评估资产型再分配的早期所有权渠道和资本利得渠道。相对于更标准的养老金型再分配,我们表明,一旦经济增长意外放缓,资产型再分配为未来世代带来更高福利,同时大幅降低长期财政负担。
Rapid economic growth creates large differences in lifetime incomes across generations. This paper examines the intergenerational redistribution generated by subsidized access to appreciating public assets in rapidly growing economies. We show that providing incumbent generations with subsidized access to these assets before future growth is fully capitalized into market values gives them an early claim on subsequent economic growth, thereby redistributing resources from future to incumbent generations. In the context of housing privatization, subsequent capital gains on privatized housing enable homeowners to trade up, further amplifying housing demand, house prices, and intergenerational redistribution. We evaluate the early ownership and capital gains channels of asset-based redistribution in a quantitative equilibrium model calibrated to China's housing privatization. Relative to more standard pension-based redistribution, we show that asset-based redistribution delivers higher welfare for future cohorts while substantially reducing long-run fiscal burdens once economic growth unexpectedly slows.
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学校财政改革的宏观经济回报:微观校准预测与因果证据相遇

The Macroeconomic Returns to School Finance Reforms: Micro-Calibrated Predictions Meet Causal Evidence
大量文献提出人力资本在决定宏观经济产出中发挥核心作用,而另一类文献记录了教育投资可观的私人回报。然而,私人收益是否转化为总体收益仍不确定,因为信号传递、挤出或一般均衡调整可能在私人回报与总体回报之间造成差距。本文用州级学校财政改革(SFRs)提高宏观经济产出的因果证据来连接这两类文献。首先,我将基于设计的SFR对私人收入影响的微观估计与队列替换框架相结合,模拟州级人均工人收入。模拟预测,10至15年内变化很小,随后随着受处理队列进入劳动力市场而逐步增加,60年后达到7.8%。接下来,我利用SFR在美国各州交错实施来检验这一预测。在事件研究框架中,州级人均工人收入沿着预测路径变化,约15年内保持平稳,30年后升至反事实水平以上约4.7%——这与私人收入收益加总到更广泛经济中相一致。最后,我表明这些效应扩展到更广泛的经济产出:人均GDP最初温和下降,30年后升至其反事实路径以上超过5%。
A large literature posits a central role for human capital in determining macroeconomic output, while another documents substantial private returns to educational investment. However, whether private gains translate into aggregate gains remains uncertain, as signaling, displacement, or general-equilibrium adjustment may drive a wedge between private and aggregate returns. This paper bridges these literatures with causal evidence that state-level school finance reforms (SFRs) increase macroeconomic output. First, I combine design-based micro estimates of SFR effects on private earnings with a cohort replacement framework to simulate state-level earnings per worker. The simulation predicts little change for 10 to 15 years, then gradual gains as treated cohorts enter the labor force, reaching 7.8 percent after 60 years. Next, I test this prediction using the staggered implementation of SFRs across U.S. states. In an event-study framework, state-level earnings per worker track the predicted path, remaining flat through about 15 years before rising roughly 4.7 percent above counterfactual levels after 30 years — consistent with private earnings gains aggregating to the broader economy. Finally, I show that these effects extend to broader economic output, with GDP per capita declining modestly initially before rising to more than 5 percent above its counterfactual path after 30 years.
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社会规范能替代执法吗?来自新加坡公职人员购房的证据

Do Social Norms Substitute for Enforcement? Evidence from Public Officials’ Home Purchases in Singapore
我们研究廉洁的社会规范能否替代正式执法,以遏制公职人员的不当行为。新加坡被广泛视为全球最不腐败的国家之一,为检验数十年成功的反腐败执法能否产生自我维持的规范提供了鲜明情境。利用全量住房交易数据,我们识别了公务员在地铁系统(MRT)扩建前后的知情购房行为。相对于匹配的无信息对照组,公务员不成比例地购买规划中——但尚未公开宣布——站点附近的住房,且效应集中在公开宣布前一到两年。该行为集中于中层官员和与轨道规划相关的机构,产生了可观的私人收益,也出现在亲属中,与信息泄露一致。更强的正式执法大幅减少了直接和间接的不当行为。我们将交易证据与关于感知腐败、公众信任和廉洁规范的独立调查指标相结合,并构建了一个动态模型:规范具有持久性但脆弱,执法既直接威慑不当行为,也间接维持规范,而政策制定者从有噪声的廉洁信号中学习规范的持久性。观察到的收紧前不当行为、基于调查的廉洁指标恶化,以及更强执法后不当行为的下降,更符合政策制定者认识到规范持久性有限,而非对暂时性噪声的反应。研究结果表明,即使在高廉洁社会,若没有持续的正式执法,社会规范也可能不足以自我维持以保持低腐败均衡。
We study whether pro-integrity social norms can substitute for formal enforcement in deterring misconduct by public officials. Singapore, widely regarded as one of the world’s least corrupt countries, provides a sharp setting to examine whether decades of successful anti-corruption enforcement can produce self-sustaining norms. Using universe-level housing transactions, we identify informed home purchases by civil servants around expansions of the Mass Rapid Transit (MRT) system. Relative to a matched uninformed control, civil servants disproportionately purchase homes near planned—but not yet publicly announced—stations, with the effect concentrated one to two years before public announcements. The behavior is concentrated among mid-level officials and agencies connected to rail planning, generates meaningful private gains, and also appears among relatives, consistent with information leakage. Stronger formal enforcement substantially reduces both direct and indirect misconduct. We combine the transaction evidence with independent survey measures of perceived corruption, public trust, and pro-integrity norms and develop a dynamic model in which norms are persistent but fragile, enforcement both directly deters misconduct and indirectly sustains norms, and policymakers learn about the persistence of norms from noisy integrity signals. Observed pre-tightening misconduct, deterioration in survey-based integrity measures, and the subsequent decline in misconduct following stronger enforcement are more consistent with policymakers learning that norms have limited persistence than with a response to transitory noise. The findings suggest that even in high-integrity societies, social norms may not be sufficiently self-sustaining to maintain a low-corruption equilibrium without continued formal enforcement.
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买断一个电视台还是放松一项约束?频谱重新打包与狄拉克猜想

Buying a Station or Relaxing a Constraint? Spectrum Repacking and Dirac's Conjecture
频谱重新打包拍卖可以通过两个边际恢复可行性:通过买断让一个电视台退出,或放松一项成对工程限制。我将电视台表示为网络中的顶点,将干扰限制表示为它们之间的边,因此买断电视台就是删除顶点,工程豁免就是放松边。本文表明,买断任何一个电视台都能减少所需频道数,而放松任何单个干扰限制却不能。可行的最小频道数为 $k$。对于每个 $k\geq4$,我证明存在一个网络:移除任何一个电视台都能节省一个频道,而放松任何单个成对限制则不能。这一主要结果直接源自狄拉克半个世纪前关于顶点临界图的猜想:此类图的色数在移除任一顶点后都会下降。通过构造 $k=4$ 时缺失的反例,并将其与 $k\geq5$ 的既有结果结合,我证明对于每个 $k\geq4$,某个 $k$-顶点临界图没有临界边,从而解决了狄拉克猜想。逐条审计可行性的市场设计者会系统性地把组合互补性误认为补救失败,从而忽视能够解锁出清目标的电视台买断。
Spectrum repacking auctions can restore feasibility along two margins: retiring a station via buyout or relaxing a pairwise engineering restriction. I represent stations as vertices in a network and interference restrictions as edges between them, and so station buyouts delete vertices and engineering waivers relax edges. This paper shows that buying out any one station can reduce the number of channels needed, even though relaxing any single interference restriction cannot. The smallest feasible number of channels is $k$ . For every $k\geq4$, I show that there is a network in which removing any station saves one channel, while relaxing any single pairwise restriction does not. This main result follows directly from Dirac’s half-century-old conjecture on vertex-critical graphs, whose chromatic number falls after any vertex is removed. By constructing the missing counterexample at $k=4$ and combining it with earlier results for $k\geq5$, I show that at every $k\geq4$, some $k$-vertex-critical graph has no critical edge, resolving Dirac's conjecture. Market designers auditing feasibility link-by-link systematically can mistake combinatorial complementarity for remedy failure, overlooking station buyouts that unlock the clearing target.
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Research Policy Research Policy

6 篇 ▼

弥合差距:一种可扩展的社会创新能力测量方法

Bridging the gap: A scalable approach to measuring social innovation capacity
随着政府日益转向社会创新以应对复杂的社会和环境挑战,缺乏稳健且可扩展的测量框架仍制约着相关政策的有效性。没有此类工具,就难以评估区域能力、评价结果并设计有针对性的干预措施,以促进社会韧性和适应性。本文提出一种新的区域社会创新能力指数,其定义为:一个地区开发、实施并维持社会创新的能力。该指数在概念上借鉴技术创新文献,利用公开可获取的数据整合社会创新能力的多维投入,并通过对德国公司网站上发布的社会创新活动进行实证分析而得到外部验证。通过采用区域规划区作为分析单元,我们的框架在实现跨区域比较的同时保留了地方特殊性。它还推进了社会创新的可测量性、可见性和问责性,为政策制定者提供了一种基于证据的战略资源配置工具。从学术角度看,该指数弥合了跨学科碎片化的方法,并有助于形成更连贯、更具比较性且与政策相关的社会创新研究议程。
As governments increasingly turn to social innovation to address complex societal and environmental challenges, the lack of robust, scalable measurement frameworks continues to limit the effectiveness of relevant policies. Without such tools, it remains difficult to assess regional capacities, evaluate outcomes, and design targeted interventions that foster societal resilience and adaptability. This paper introduces a novel index of regional social innovation capacity, which is defined as a region's ability to develop, implement, and sustain social innovations. Drawing conceptually from the technological innovation literature, the index integrates multidimensional inputs for social innovation capacity using publicly available data and has been externally validated through an empirical analysis of social innovation activities published on German company websites. By employing regional planning areas as the unit of analysis, our framework enables cross-regional comparison while preserving local specificity. It also advances the measurability, visibility, and accountability of social innovation, offering policymakers an evidence-based tool for strategic resource allocation. From an academic perspective, the index bridges fragmented approaches across disciplines and contributes to a more coherent, comparative, policy-relevant social innovation research agenda.
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转型创新政策的地方实施:模糊性、战略回应与跨期冲突

Local implementation of transformative innovation policies: Ambiguities, strategic responses, and intertemporal conflicts
转型创新政策(TIP)为应对社会挑战提供了一个有吸引力的框架。然而,其有效实施需要更深入理解地方行动者之间的行为与关系动态,因为这些动态可能促进或阻碍可持续且包容的政策结果。基于对英格兰住宅电动汽车充电基础设施建设实施的嵌入式案例研究,我们揭示政策模糊性与新出现的冲突之间的相互作用如何制约TIP实施的地方路径。我们表明,地方行动者会对角色、手段和资源获取方面的模糊性作出回应,而这些回应可能塑造三种随时间演变的冲突(目的不一致、公地争议和财务脆弱性)。基于这些洞见,我们构建了一个地方TIP实施模型,用以解释实施行动者如何回应模糊性,以及这些回应如何塑造冲突。总体而言,我们的分析有助于理解TIP实施所面临的跨期和分配挑战。
Transformative Innovation Policy (TIP) offers a compelling framework for addressing societal challenges. However, its implementation requires a deeper understanding of the behavioural and relational dynamics among local actors because these dynamics can enable or hinder sustainable and inclusive policy outcomes. Drawing on an embedded case study of the implementation of residential electric vehicle charging infrastructure in England, we unveil how the interplay between policy ambiguities and emergent conflicts conditions the local pathways of TIP implementation. We show that local actors respond to ambiguities of role, means, and resourcing, and that these responses can shape three conflicts (purpose incongruence, commons contestation, and financial fragility) which evolve over time. Building on these insights, we develop a model of local TIP implementation that explains how implementing actors respond to ambiguities and how these responses shape conflicts. Overall, our analysis contributes to understanding the intertemporal and distributive challenges facing TIP implementation.
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技术生命周期中的自动化与就业:来自欧洲地区的证据

Automation and employment over the technology life cycle: Evidence from European regions
本文考察自动化与数字技术对劳动力市场的影响如何随其技术生命周期而变化。我们使用1995年至2017年158个欧洲地区的数据,研究机器人、信息与通信技术(ICT)以及软件与数据库(SDB)对就业和工资的阶段特定影响。我们通过对投资动态应用结构断点方法,识别出不同的技术生命周期及其早期与成熟采用阶段。为解决地区暴露度的内生性问题,我们采用移动份额工具变量策略,利用美国投资模式与预先确定的地区产业结构之间的交互作用。我们发现,劳动力市场效应在技术和生命周期阶段之间存在系统性差异。对于无形数字技术而言,早期采用具有技能偏向性:在SDB早期扩散阶段,暴露度与就业下降和工资上升相关。相比之下,早期ICT采用的特点是就业扩张集中于低薪工人,这与生产率驱动的需求增长相一致;而机器人在早期扩散中则表现出大体上技能中性的效应。对于有形技术,替代效应在成熟采用阶段浮现。跨技术来看,劳动力市场调整主要通过服务业部门进行,即使采用发生在制造业(机器人)也是如此。我们的发现表明,对ICT和机器人的总体估计往往掩盖了相反的、生命周期阶段特定和技术特定的动态。
This paper examines how the labor market effects of automation and digital technologies vary across their technology life cycles. Using data for 158 European regions from 1995 to 2017, we study the phase-specific impacts of robots, information and communication technologies (ICT), and software and databases (SDB) on employment and wages. We identify distinct technology life cycles and their early and mature adoption phases by applying a structural break methodology to investment dynamics. To address endogeneity in regional exposure, we employ a shift-share instrumental-variable strategy that leverages US investment patterns interacted with pre-determined regional industrial structures. We find that labor market effects differ systematically across both technologies and life-cycle phases. Early adoption is skill-biased for intangible digital technologies: exposure to SDB during early diffusion is associated with declining employment and rising wages. In contrast, early ICT adoption is characterized by employment expansion concentrated among lower-paid workers, consistent with productivity-driven demand growth, while robots exhibit largely skill-neutral effects in early diffusion. For tangible technologies, displacement effects emerge in mature adoption phases. Across technologies, labor market adjustment operates mainly through the services sector, even when adoption occurs in manufacturing (robots). Our findings demonstrate that aggregate estimates of ICT and robots often mask opposing life cycle phase- and technology-specific dynamics.
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迈向工业现代性理论

Towards a theory of industrial modernity
不断加深的社会-环境多重危机促使人们呼吁反思工业现代性:即当前占主导地位的、关于自然环境、科学与技术的社会假设。然而,这些深层宏观假设的起源与长期共同演化,鲜少在创新研究中获得系统关注。这是一个重要疏漏,因为工业现代性的历史遗产持续塑造着当前可持续性挑战的政策框定以及适当干预措施的设计。本文旨在发展一套概念词汇,以理论化工业现代性的历史演化。我们将可持续转型研究中的深度转型框架与来自多个领域关于长期工业化相关趋势的洞见相结合:1)提出一份经过系统验证的清单,包含工业现代性的38个构成性观念、制度与实践;2)描绘它们在过去250年中的出现过程;3)识别由这些特征相互作用所产生的10种反复出现且引发争议的结果;4)区分工业现代性长期演化中的三个阶段。最后,我们提出一个研究议程,用以研究工业现代性的历史演化、当前影响和政策含义。
The deepening socio-environmental polycrisis has stimulated calls to rethink industrial modernity: the currently dominant societal assumptions about the natural environment, science and technology. However, the genesis and long-term co-evolution of these deep macro-level assumptions has rarely gained systematic attention in innovation studies. This is an important oversight given that the historical legacy of industrial modernity continues to shape the policy framing of current sustainability challenges as well as the design of appropriate interventions. In this paper we seek to develop a conceptual vocabulary for theorizing the historical evolution of industrial modernity. Combining the Deep Transitions framework from sustainability transitions studies with insights on long-term industrialization-related trends from various fields, we 1) present a systematically validated inventory of 38 constituent ideas, institutions and practices of industrial modernity; 2) map their emergence over the past 250 years; 3) identify 10 recurrent controversial outcomes generated by the interactions of these traits; 4) distinguish between three phases in the long-term evolution of industrial modernity. We conclude with a research agenda for studying the historical evolution, current impacts and policy implications of industrial modernity.
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在期望与结果之间:技术采用者的叙事与技术话语动态

Between expectations and outcomes: Technology adopters' narratives and technology discourse dynamics
期望推动新兴技术的演进,但现有研究通常假定,随着技术成熟并被广泛接受,期望会逐渐被具体结果所取代。我们通过考察技术采用者对技术绩效的时间性框定、其对技术采用具体结果的表述,以及行业媒体报道所反映的更广泛技术话语之间如何随时间相互关联,重新审视这一假定。我们通过追踪21年(2002—2022年)的射频识别(RFID)采用情况,并分析《RFID Journal》上发表的407个案例故事中采用者的陈述,同时结合同一时期行业媒体报道的纵向语料库,来揭示这些模式。我们将对案例故事中采用者所表述的具体已实现收益与挑战的手工编码,与一个专门构建的词典相结合,该词典用于检测采用者在框定RFID绩效时的五种时间性立场。我们发现,具体结果与时间性框定之间的关联是有选择性的,并取决于阶段。具体结果并不只是取代期望;相反,它们会随时间与特定的时间性框定相关联。我们还发现,采用者的时间性框定以随阶段变化、并随时间改变的方式与行业媒体报道相关联,这常常放大、但有时也缓和了对RFID的更广泛关注。我们将采用者置于技术话语共同建构者的位置,从而为技术框定与期望动态研究作出贡献;我们以阶段敏感的解释挑战了替代假设,并引入一种可复制的、基于词典的方法,用于大规模分析技术叙事中的时间性框定。
Expectations propel the evolution of emerging technologies, yet existing research generally assumes that expectations are gradually displaced by concrete outcomes as technologies mature and become widely accepted. We revisit this assumption by examining how technology adopters' temporal framings of technology performance, their expressions of concrete outcomes of technology adoption, and the broader technology discourse reflected in trade-press coverage relate to one another over time. We illuminate these patterns by tracing 21 years (2002−2022) of radio-frequency identification (RFID) adoption and analysing adopters' statements in 407 case stories published in The RFID Journal, coupled with a longitudinal corpus of trade-press coverage from the same period. Manual coding of adopters' expressions of concrete realised benefits and challenges in the case stories is combined with a purpose-built dictionary that detects five temporal positions in adopters' framings of RFID performance. We find that associations between concrete outcomes and temporal framings are selective and stage-dependent. Concrete outcomes do not simply replace expectations, instead, they become associated with specific temporal framings over time. We also find that adopters' temporal framings are associated with trade-press coverage in stage-specific ways that change over time, often amplifying but also sometimes tempering broader attention to RFID. We contribute to research on technology framing and expectations dynamics by foregrounding adopters as co-constructors of technology discourse, challenging the displacement assumption with a stage-sensitive explanation of expectation–outcome dynamics, and introducing a replicable, dictionary-based approach for large-scale analysis of temporal framings in technology narratives.
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采用生存前沿:人工智能、融资摩擦与市场结构

Adoption survival frontiers: Artificial intelligence, financing frictions, and market structure
人工智能及其他通用数字技术往往扩散不均:大企业较早采用,而小企业则推迟采用、收缩,或放弃主动采用期权。本文发展了一种受生存约束的技术采用理论。在该理论中,企业在不确定的实施成本下为运营融资,同时选择何时采用一种不可逆技术。放弃/退出是内生的:当保留采用期权的价值低于被动的传统退路(即放弃主动采用期权的价值,标准化为零)时,企业便退出主动采用竞赛。核心对象是采用生存前沿,即融资成本—实施不确定性空间中的一条边界,将追随者能够存活足够久以完成采用的环境,与追随者最先放弃主动采用期权的环境区分开来。古诺模块约束了追随者收益侵蚀中的价格传导成分;额外的非价格独占性损失由一个简约式项 χ_A 捕捉(数据积累、平台锁定、转换摩擦,以及采用后租金获取减少),仍保持为简约式。对修正后的非齐次停止问题的数值刻画表明,领导者引致的状态转换会使生存前沿向内移动,并提高追随者在采用之前放弃主动采用期权的风险。福利分解阐明了这种选择何时是有效率的,以及何时反映了一种核算外部性:即领导者引致的收益变动,而追随者的私人停止问题在状态转换之前并未将其纳入。我们并未求解一个动态采用时机博弈。欧盟公开汇总数据表明,大型企业与小型企业之间的人工智能采用差距是可测量的,但也说明,跨国汇总回归会受到发展梯度的混杂影响,无法识别企业层面的“生存至采用”渠道;我们将其视为面向未来关联微观数据检验的测量可行性图,而非对该机制的检验。本文贡献了一个关于采用生存的计算理论,以及一张透明的测量可行性图。
Artificial intelligence and other general-purpose digital technologies often diffuse unevenly: large firms adopt early, while smaller firms delay adoption, contract, or abandon the active adoption option. This paper develops a survival-constrained theory of technology adoption in which firms choose when to adopt an irreversible technology while financing operations under uncertain implementation costs. Abandonment/exit is endogenous: firms leave the active adoption race when the value of preserving the adoption option falls below the passive legacy fallback (the value of abandoning the active adoption option, normalized to zero). The key object is an adoption survival frontier, a boundary in financing-cost–implementation-uncertainty space separating environments in which followers survive long enough to adopt from environments in which they abandon the active adoption option first. The Cournot block disciplines the price-pass-through component of follower payoff erosion; additional non-price appropriability losses, captured by a reduced-form term χ A (data accumulation, platform lock-in, switching frictions, and reduced access to post-adoption rents), remain reduced-form. Numerical characterization of the corrected nonhomogeneous stopping problem shows that a leader-induced regime shift moves the survival frontier inward and raises the risk that followers abandon the active adoption option before adoption. A welfare decomposition clarifies when this selection is efficient and when it reflects an accounting externality: a leader-induced payoff shift that the follower’s private stopping problem does not represent before the regime shift. We do not solve a dynamic adoption-timing game. Public EU aggregate data show that large-minus-small AI adoption gaps are measurable, but also illustrate that aggregate cross-country regressions are confounded by development gradients and cannot identify the firm-level survival-to-adoption channel; we treat this as a measurement-feasibility map for future linked-microdata tests rather than as a test of the mechanism. The paper contributes a computational theory of adoption survival and a transparent measurement-feasibility map.
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Strategic Management Journal Strategic Management Journal

3 篇 ▼

漂向顶端?类别游移对美国风险投资行业地位流动的影响

Drifting to the top? The effects of category erraticism on status mobility in the U.S. venture capital industry
研究摘要 我们考察类别游移(即随时间跨越社会认知上相距较远的行业类别)对地位流动的影响。我们认为,阻碍向上地位流动的并不是企业所跨越类别的广度或这些类别之间的总体距离,而是其跨类别移动是否形成连贯或不连贯的轨迹,因为这会引发外部受众对承诺和能力的担忧。我们进一步认为,这些问题对高地位企业和经验更丰富的企业更为严重,因为它们面临更严格的轨迹连贯性期望。使用1980年至2012年美国风险投资行业中1413家风险投资公司(VC)的全面纵向样本,我们发现类别游移会降低向上地位流动。这一效应部分由外部受众对VC承诺和能力的担忧程度所中介,并且对地位更高和经验更丰富的VC更强。管理摘要 本研究表明,风险投资公司(VC)随时间跨行业移动的方式会塑造其在VC行业中的地位位置。那些以看似不连贯的方式跨越相距较远的行业——业内常称为投资主题漂移、战略漂移或“游客VC”行为——的VC,会引发人们对其长期承诺和为所投企业增值能力的担忧。这些担忧使此类企业更难与高地位伙伴建立联合投资关系,从而限制其提升地位位置的能力。相比之下,以更一致方式跨行业扩张的VC——其移动建立在先前经验之上并反映清晰的投资主题——更可能被视为有承诺且有能力的,从而促进向上地位流动。利用美国VC投资三十年的数据,我们发现,不稳定的投资路径的弊端对地位更高和经验更丰富的VC尤为明显,因为它们被要求具有更强的长期战略连贯性。
Abstract Research Summary We examine the effects of category erraticism, that is, having moved across socio‐cognitively distant industry categories over time, on status mobility. We argue that it is not the breadth of the categories that a firm spans or the overall distance among those categories, but whether its movement across categories forms a coherent or incoherent trajectory, that hinders upward status mobility by creating commitment and capability concerns among external audiences. We further argue that these concerns are more problematic for higher status firms and more experienced firms because they are subjected to stricter expectations of trajectory coherence. Using a comprehensive longitudinal sample of 1413 venture capital firms (VCs) in the U.S. VC industry from 1980 to 2012, we find that category erraticism reduces upward status mobility. This effect is partly mediated by the extent to which external audiences are concerned about the commitment and capability of the VCs, and is stronger for higher‐status and more experienced VCs. Managerial Summary This study shows that how venture capital firms (VCs) move across industries over time shapes their status position in the VC industry. VCs that move across distant sectors in ways that appear incoherent, often described in the industry as thesis drift, strategy drift, or tourist VC behavior, raise concerns about their long‐term commitment and ability to add value to the firms in which they invest. These concerns make it harder for such firms to form syndication relationships with high‐status partners, limiting their ability to improve their status position. In contrast, VCs that expand across industries in a more consistent way, where moves build on prior experience and reflect a clear investment thesis, are more likely to be viewed as committed and capable, which facilitates upward status mobility. Using three decades of data on U.S. VC investments, we find that the downsides of erratic investment paths are especially pronounced for higher‐status and more experienced VCs, which are held to stronger expectations of strategic coherence over time.
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创新成功需要倡导吗?企业创新中的利益相关者参与

Does innovation success need advocacy? Stakeholder involvement in firm innovation
研究摘要 既有研究表明,企业常与倡导团体合作以缓解利益相关者争议。我们将利益相关者理论整合进协作创新的绩效模型,提出对此类合作一个被忽视的解释:提升企业创新的采纳。我们认为,倡导团体通过一种独特的、基于角色的合法性机制影响创新采纳。由于倡导团体被期望审视企业行为,它们愿意合作便提供了一个可信信号,表明企业创新具有社会适当性。当企业此前因社会责任缺失的产品或服务而受到媒体批评,以及所在行业的企业社会绩效差异较大时,这些信号尤其有价值。利用德国企业创新合作的独特数据集,我们的猜想得到支持。管理摘要 研究表明,企业与倡导团体合作是为了避免抵制或抗议。我们引入此类合作一个在很大程度上被忽视的额外理由:提升企业创新的采纳。我们认为倡导团体可以为创新赋予合法性,并主张当企业产品或服务过去受到负面报道,以及行业内企业社会绩效差异较大时,企业从此类合作中获益最多。基于企业与倡导团体之间创新合作的独特数据,我们发现这些条件决定了企业何时能通过让倡导团体参与创新项目而显著获益。
Abstract Research Summary Prior research documents that firms often collaborate with advocacy groups to mitigate stakeholder contention. Integrating stakeholder theory into a performance model of collaborative innovation, we propose an overlooked explanation for such collaborations: to enhance the adoption of firms' innovations. We argue that advocacy groups influence the adoption of innovations through a distinct, role‐based legitimacy mechanism. Because advocacy groups are expected to scrutinize firms' conduct, their willingness to collaborate provides a credible signal that a firm's innovation is socially appropriate. These signals become particularly valuable when firms have previously faced media criticism for socially irresponsible products or services and in industries characterized by high variation in corporate social performance. Using a unique dataset on firms' innovation collaborations in Germany, we find support for our conjectures. Managerial Summary Research indicates that firms collaborate with advocacy groups to avoid boycotts or protests. We introduce a largely overlooked additional rationale for such collaborations: to enhance the adoption of a firm's innovations. We suggest that advocacy groups can lend legitimacy to innovations and argue that firms benefit most from such collaborations when their products and services received bad press in the past and when there is considerable variation in corporate social performance across firms in the industry. Based on unique data on innovation collaborations between firms and advocacy groups, we find that these conditions matter in determining when firms can significantly benefit from involving advocacy groups in their innovation projects.
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企业事业部化与CEO晋升中的性别差距

Firm divisionalization and the gender gap in CEO promotion
研究摘要 本研究考察事业部化的企业结构如何塑造内部首席执行官(CEO)晋升中的性别差距。我们认为,事业部化企业可能通过生成更多可归因于个人的高管绩效信息,缩小CEO继任中的性别差距。与候选人贡献难以剥离的企业相比,事业部化企业建立损益(P&L)问责制,使管理者绩效更可见、更可比。利用49,135家美国企业中超过616,000名管理者的纵向数据,我们发现女性在事业部化企业中更有可能被晋升为CEO。我们还发现,在具有先前P&L问责经验的管理者中,性别差距更小。在事业部化企业的管理者中,相对于企业内部同侪的更强单元绩效,与女性晋升为CEO的正相关强于男性。结果表明,组织结构是高管晋升中性别不平等差异的一个潜在来源。管理摘要 为什么成为CEO的女性如此之少?部分答案在于企业的组织方式。当公司按事业部结构组织,各事业部拥有自己的损益责任时,领导这些单元的管理者业绩更容易被观察、比较并归功于个人。这减少了主观判断的空间,而性别偏见往往通过主观判断进入晋升决策。在约49,000家美国企业、超过600,000名管理者的数据中,我们发现女性在事业部化企业中更有可能被晋升为CEO。这一模式在曾领导业务单元的女性中最强,并且强劲的单元业绩对女性晋升前景更为重要。对于寻求在CEO继任中实现更大性别平等的董事会而言,向高级领导者提供清晰、可比绩效记录的结构和评估体系,可能与多元化举措同等重要。
Abstract Research Summary This study examines how divisionalized firm structures shape the gender gap in internal chief executive officer (CEO) promotion. We argue that divisionalized firms may narrow the gender gap in CEO succession by generating more individually attributable performance information about senior managers. In contrast to firms in which candidates' contributions are difficult to isolate, divisionalized firms create profit‐and‐loss (P&L) accountability that makes managerial performance more visible and comparable. Using longitudinal data on over 616,000 managers in 49,135 US firms, we find that women are more likely to be promoted to CEO in divisionalized firms. We also find that the gender gap is smaller among managers with prior P&L‐accountable experience. Among managers in divisionalized firms, stronger unit performance relative to within‐firm peers is more positively associated with promotion to CEO for women than for men. The results highlight organizational structure as a potential source of variation in gender inequality in executive advancement. Managerial Summary Why do so few women become CEOs? Part of the answer lies in how firms are organized. When a company is structured into divisions with their own profit‐and‐loss responsibility, the results of the managers who lead those units are easier to observe, compare, and credit to the individual. This leaves less room for subjective judgments through which gender bias often enters promotion decisions. In data on more than 600,000 managers at roughly 49,000 US firms, we find that women are more likely to be promoted to CEO in divisionalized firms. The pattern is strongest for women who have led a business unit, and strong unit results count for more in women's promotion prospects. For boards seeking greater gender equity in CEO succession, structures and evaluation systems that give senior leaders clear, comparable performance records may matter as much as diversity initiatives.
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世界经济 Journal of World Economy

8 篇 ▼

高水平对外开放的理论内涵、特色与创新

中国特色高水平对外开放理论是马克思主义基本原理同中国对外开放实践相结合的重要成果。本文系统梳理了党的十八大以来实施的重大开放举措与取得的伟大成就,总结出以先行先试为实践先导,以开放促改革为推进动力,以制度型开放为主要内容,以“一带一路”为重要平台,以新发展格局为战略总览,以新型全球治理观为行动准则,以人类命运共同体为价值归依的七个维度构成的高水平对外开放理论体系。该理论体系具有鲜明特色,推动对外开放理念、路径、布局与使命实现全面升华。本文还从社会主义初级阶段对外开放内涵拓展、国际经济治理观点革新、发展中国家参与全球化路径深化、共享开放与全面开放实践推进、提出新的世界经济互动平衡观以及开创共同体理念新境界新空间六个方面,揭示其对已有开放理论和全球治理理论的重大创新,尝试为构建中国高水平对外开放自主知识体系提供基本分析框架。
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免签政策与外商直接投资:来自企业注册数据的证据

扩大普通护照免签安排是便利国际人员往来、推进高水平对外开放的重要举措。本文基于免签政策的准自然实验和2023年1月至2026年2月工商企业注册数据,使用多期双重差分方法考察其对外资进入的影响。研究发现,免签政策显著增加了免签国家在华新设外资企业数量。机制分析表明,释放持续开放的政策信号、改善国际舆情以及缓解信息不对称是其促进外资进入的主要渠道。异质性分析表明,政策效应在事前人员往来基础较好、投资规模较大、时区差异较小、行业资本密集度较高、双边移民网络较密集以及服务业样本中更为突出。此外,免签政策还能依托对华经贸基础,降低项目前期沟通成本,推动潜在投资项目由前期接触转向实际落地。本文为优化免签政策布局和推进高水平对外开放提供了微观证据与政策启示。
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“共享共赢”:基于共享供应商的FDI溢出效应研究

在全球价值链深度整合的背景下,外资企业的技术溢出是推动东道国本土企业创新能力提升的重要途径。本文基于企业间供应链数据,采用泊松伪最大似然方法考察了外商直接投资的技术溢出是否能通过共享供应商这一网络节点实现传导,并系统揭示了其传导机制和异质性特征。研究发现,内资企业因与来自经济合作与发展组织的外资企业共享供应商,能显著提升其发明专利产出;这一效应主要通过共享供应商的知识传递和内资企业的供应链适配优化实现。进一步分析表明,在合作关系越稳定、企业吸收能力越强、技术相似度越高且技术差距越突出时,溢出效应越明显。此外,外资的技术标准压力会推动共享供应商创新能力提升,外资企业也能通过与本地化程度较高的供应商合作降低成本、稳定供应链,实现与共享供应商和内资企业的共享共赢。
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量价混合还是数量淡出:中国货币政策框架转型研究

准确识别我国货币政策量价调控框架的转型进程,是健全中国特色现代货币政策框架、畅通货币政策传导机制的重要基础。本文基于从工具到目标的全链条传导视角,细致辨析1996-2025年中国货币政策量价传导机制的结构性变化。分析结果表明,样本区间内数量型政策全链条传导效应逐渐弱化,价格型政策传导效应逐步增强。2011年之后,基础货币不再对货币总量具有显著预测效应,利率指标反而对货币总量具有单向预测效应。因此,从全链条传导视角看,近年来中国货币政策并非量价混合型体系,数量型传导已经逐渐淡出。本文分析表明,判断货币政策框架转型应考虑全链条传导机制,而不能只关注政策工具的操作方式,这为构建科学稳健的货币政策体系提供了经验依据。
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统一监管与债券市场高质量发展:来自债市执法改革的证据

建设统一执法体系是打破债券市场监管分割、推动债券市场高质量发展的基础性工作。本文以中国证监会统一执法权的确立为政策冲击,基于银行间与交易所企业债日度交易数据,运用双重差分法考察执法权整合如何补足行业自律监管并影响债券市场风险定价与资源配置效率。研究发现,统一执法显著降低了银行间债券的二级市场信用利差。机制检验表明,统一执法通过提升监管可信度,推动企业和市场行为响应,进而促使信用利差下降。异质性分析显示,该作用在既有契约保护和中介机构约束相对不足的样本中更强,与统一执法改善信息环境、缓解逆向选择的理论预期一致。进一步分析发现,统一执法还会降低一级市场发行成本,提升债券发行效率。本文从公共执法与自律监管关系的视角,揭示了统一执法影响风险定价与市场运行效率的作用路径,为“十五五”时期完善债市治理体系、深化监管执法一体化改革提供了微观证据与政策参考。
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地方化债组合政策与资本市场反馈

厘清财政风险治理的微观传导路径,对于理解宏观政策如何影响市场信心和企业行为具有重要意义。本文以中央一揽子化债方案中的12万亿元化债组合政策为切入点,基于中国A股上市公司数据,运用事件研究法和双重差分模型,考察该政策的短期资本市场反馈、市场预期形成及后续经营表现。研究发现,政府业务关联程度较高的企业相较于无政府业务的企业,在政策公告窗口期获得更高的累积异常收益率,表明资本市场能够识别政策受益主体并给予更高估值。这种市场反馈不仅伴随着政府业务关联程度较高企业的投资者交易活跃度提升,也包含对企业未来现金流和经营风险的基本面重估。进一步地,政策实施后,政府业务关联程度较高企业的经营现金流、净利润增长和资本开支相对改善。机制分析表明,化债政策主要通过改善企业回款、释放资金压力和缓解融资约束发挥作用。本文为地方化债政策提振市场信心并畅通政企资金链的积极作用提供了微观经验证据。
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耐用品价格补贴与家庭消费行为:家电以旧换新的证据

耐用品价格补贴的消费激励效应,是理解居民消费行为、畅通国内大循环的重要切口。本文聚焦上一轮家电以旧换新政策,利用城镇住户调查细分记账数据,系统考察其对家庭总消费、家电购买及消费结构的影响。研究发现:政策实施当年和后续年份,家庭总消费分别增加2262元和4793元,对应需求弹性为0.52和1.10;政策显著促进五类补贴家电消费,家电消费增长更接近更新替换而非存量扩张;政策还带动家庭服务、通信、文娱服务等消费,对医疗保健、成人教育和保险支出形成有限挤出;政策主要影响了中高收入、高教育和劳动年龄家庭。本文从微观家庭层面厘清耐用品价格补贴的消费传导逻辑,为新一轮促消费政策的优化设计提供实证依据。
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网间互联质量与合作创新:来自新增骨干直联点的证据

当前数字基础设施政策已经从接入扩张转向质量升级,网间互联质量能否促进跨区域创新协同关系到创新资源能否有效组织。本文利用分批新增国家级互联网骨干直联点造成的城市对跨网绕行距离下降,识别网间互联质量改善的创新效应。分析结果表明,新增骨干直联点显著提高了城市间合作发明专利数量,政策响应集中于商业骨干网南北互联改善下的跨运营区合作,以及商业网与科研网互联改善下的跨城产学研合作。机制上,政策效应更多体现为合作边界扩展而非既有关系加深,新合作关系、新申请人和新技术组合更频繁进入,合作内容也更常嵌入对方城市的既有优势技术。这与“互补性合作匹配释放”相一致,即网间互联质量改善降低了互补性异地资源转化为现实合作的协同门槛。
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中国工业经济 China Industrial Economics

1 篇 ▼

人工智能如何影响管理层角色演变

本文基于管理者角色理论,将人工智能引入知识层级模型,从理论上分析了人工智能如何影响管理层角色演变。在此基础上,利用2016—2024年企业招聘数据,采用BERT-WWM大语言模型对招聘文本进行分类,构建不同层级管理者角色指标,并进行实证检验。研究发现:人工智能强化了企业高层、中层和基层管理者的“信息传递”角色,推动“决策制定”角色向基层管理者下移,同时强化了高层和基层管理者的“人际关系”角色。人工智能主要通过降低企业内部协调沟通成本和知识分析成本来推动管理层角色演变。人工智能对管理层角色的影响会随企业内部权力配置和生产流程变革而发生变化。本文从管理者角色视角揭示了人工智能重塑企业组织结构的微观机制,为企业在数智化转型过程中优化管理层级分工和管理实践提供了实践参考。
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金融研究 Journal of Financial Research

11 篇 ▼

外部不确定性冲击、跨境资本异常流动与系统性金融风险防范

摘要本文借助状态空间系统区分外部环境中非预期的正负向波动成分,尝试识别中国经济面临的外部正向和负向不确定性冲击,在此基础上考察两者对系统性金融风险变化的差异化作用,并重点从跨境资本异常流动视角揭示其传导渠道与优化治理路径。研究发现:外部不确定性冲击会放大系统性金融风险水平,且该影响因不确定性方向不同呈现非对称性,负向不确定性影响更为突出;跨境资本异常流动构成重要传导渠道,其中正向不确定性通过逐利动机推升资本外逃概率,而负向不确定性主要通过避险动机增加资本中断和资本撤回概率;汇率弹性提升与跨境资本监管可缓解外部不确定性带来的相关冲击,产业结构优化政策可以有效应对正向不确定性带来的影响,经济主体预期管理则更利于化解负向不确定性带来的扰动,长期来看,全要素生产率提升在风险平抑方面作用显著。
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房地产下行背景下提振居民消费的宏观政策研究

摘要本文通过实证研究与理论建模,系统剖析房地产市场下行冲击对消费的宏观影响。基于贝叶斯向量自回归模型的实证分析表明,房价下跌对不同收入群体消费的冲击存在显著差异,低收入群体消费降幅显著高于高收入群体,也是总消费走弱的主要因素。为厘清这一传导机制,本文构建包含受信贷约束与不受信贷约束家庭的两代理人新凯恩斯模型。数值模拟结果显示,房价下跌通过金融摩擦与土地财政两个渠道放大经济下行压力。其中,受信贷约束的低收入家庭消费与当期收入强相关,收入下滑直接降低其消费;高收入家庭可通过调整储蓄资产平滑消费。当低收入家庭占比上升时,其消费下降将进一步引致非房产部门产出下降、工资加速下滑,形成收入和总消费持续走弱的负反馈循环。政策评估结果显示,降息缓解投资下降的效果较为显著,但对低收入群体消费的直接提振作用有限;提振消费更有赖于财政政策精准发力。实践中应发挥货币政策与财政政策协同作用,构建投资消费双轮驱动格局。
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耐心资本:基本特征、识别策略与实体效应

摘要耐心资本以长期投资为导向,同时对短期收益波动表现出较强承受能力,是推动企业高质量发展的重要力量。本文以我国公募基金为研究对象,从基金资产端投资行为出发,构建“持仓—收益”敏感性指标,识别出对持仓短期负向收益具有较高容忍度的耐心基金,并在此基础上,主要考察了耐心基金持股对被投企业的实体效应。研究发现,耐心基金持股显著促进被投企业投资与创新,其机制在于缓解企业所面临的资本市场压力,从而降低企业经营者短期主义行为。然而,耐心基金持股也弱化了外部约束,企业经营者自利行为随之增加,反映了资本市场压力缓解产生的潜在治理成本。进一步分析表明,公司治理环境是决定耐心资本净效应的关键因素,在外部监督机制较完善的企业中,耐心基金持股对投资与创新的促进作用更为显著。本文对我国识别和培育耐心资本、完善服务新质生产力的金融体系具有一定参考。
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融资平台市场化转型与债券融资成本:政府与企业双重视角

摘要本文基于手工收集的融资平台转型数据以及2013—2023年债券发行数据,系统考察地方政府隐性债务治理对债券融资成本的影响。研究发现,融资平台市场化转型显著降低了城投债与企业债券的发行利差。机制检验表明,转型一方面倒逼融资平台提升自身经营造血能力,另一方面释放信贷资源缓解非平台企业的融资约束,进而共同压降两类债券的发行利差。分组分析显示,在财力薄弱的地区、盈利能力偏弱的发债主体及融资约束较为严重的企业中,融资平台市场化转型对债券发行利差的降低作用更为明显。本文证实了融资平台市场化转型在隐性债务治理与实体经济支持中的积极作用,为统筹“稳增长”与“防风险”提供了相应参考。
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数字金融、居民绿色消费与环境库兹涅茨曲线拐点跨越

摘要本文构建静态和动态消费决策模型,分析数字金融如何影响居民绿色消费决策,并基于新能源汽车交强险数据测度地区绿色消费水平,实证检验数字金融对绿色消费及环境库兹涅茨曲线的影响。研究发现,数字金融能够显著提升地区绿色消费水平,并加速环境库兹涅茨曲线拐点到来。进一步分析表明,该促进效应在人口结构年轻的地区更为突出;数字金融的覆盖广度、使用深度和数字支持服务程度均对绿色消费产生显著正向影响。机制检验显示,数字金融通过缓解居民流动性约束释放绿色消费需求,并借由需求端激励企业在生产端开展绿色创新,进而加速环境库兹涅茨曲线拐点跨越。经济后果检验表明,数字金融通过促进绿色消费显著遏制地区SO2和NOx排放,并拉动经济增长,实现环境保护与经济发展的协同。本文研究证实了数字金融在激发绿色消费及促进发展方式转型中的重要作用,为构建兼顾生态保护与经济效率的新型增长范式提供了理论支撑与政策参考。
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政策价值信号、地方转化效应与城市创新驱动——来自科技保险的经验证据

摘要科技保险政策作为服务于科技创新活动的制度安排,其价值信号反映了地方政府对创新风险保障的重视程度与资源配置意向。本文基于地方科技保险政策文本识别结果,构建城市层面的政策信号强度指标,并实证检验其对城市创新的影响。研究发现:城市科技保险政策信号的增强能够显著推动当地创新水平提升;机制分析表明,信号主要通过促进科技保险市场发展、增加地方政府科技财政支出与激励区域研发投入三条路径发挥作用;分组分析显示,政策效应在中部地区及北方城市更为突出,中等创新水平城市受益最为显著,表明政策效果高度依赖城市资源禀赋与产业特征。此外,邻近城市间存在政策跟随行为,但空间溢出效应并不显著。本研究揭示了央地政策协同驱动城市创新的内在逻辑,为优化科技保险政策设计及差异化施策提供了相应依据。
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监管一体化对上市公司绩效的影响——来自中央法规文本分析的证据

摘要基于我国2007年至2023年颁布的33万多条中央法规文件,本文运用潜在狄利克雷分配算法(LDA),同时结合大语言模型,提取并定义了99个监管议题,进而在中国上市公司年报文本基础上构建了企业层面的监管一体化程度指标。总体而言,上市公司的监管一体化程度在2013年后呈现出稳步提升的态势。实证结果表明,监管一体化显著提高了企业的经营绩效;在数字化转型水平较高的地区和非国有企业中,监管一体化的积极效应更为显著;机制分析表明,监管一体化降低了企业的经营成本和合规成本、减少了监管不一致性、提高了研发创新能力,从而提升了企业的经营绩效。本文研究对提高监管效率、推进全国统一大市场建设具有参考价值。
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数字化转型、供应链溢出与劳动技能溢价

摘要本文从数字化转型的供应链溢出效应出发,考察中游企业数字化转型对上、下游企业劳动技能溢价(高、低技能劳动力之间的工资差距)的影响。研究发现,中游企业数字化转型会显著降低上、下游企业的劳动技能溢价,且该影响在下游企业中更为突出。机制分析表明,这一效应主要通过推动数字技术扩散、增强协同化生产、优化产需匹配以及提升信息透明度四条渠道传导至上、下游企业。进一步分析发现,中游企业数字化转型的影响在不同链路上呈现出差异性特征,上游企业劳动技能溢价的降低主要取决于中游企业信息化制造、定制化产品与定向化服务链路的数字化转型,而下游企业劳动技能溢价的降低主要取决于中游企业信息化制造链路的数字化转型。本文为充分发挥数字化转型的链式效应、推动构建更加合理有序的收入分配格局提供了实证参考。
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总法律顾问制度与国有企业违规治理——基于金融监管压力传导的经验证据

摘要在金融强监管持续推进与法治化营商环境加快构建的背景下,外部监管压力能否转化为企业内部合规约束,成为提升国有企业治理能力的重要问题。总法律顾问作为全面负责国有企业法律合规管理的制度安排,是连接外部监管与内部合规的关键主体。本文考察总法律顾问制度对国有企业违规行为的治理效应,并分析其在金融监管压力传导过程中的作用机制。研究发现:(1)总法律顾问的设立使国有企业违规可能性降低17.69%,外部金融监管压力更大时,总法律顾问的治理效能更强。(2)机制分析发现,总法律顾问通过提高内部法律风险意识和增强外部法律风险感知,有效抑制了国有企业不同类型的违规行为,降低了违规程度,发挥了合规“守门人”作用。本文从金融监管压力传导视角拓展了法律高管在企业合规治理中的功能认知,为国有企业法治化建设提供了实践支撑与政策参考。
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数字金融的投资者福利效应——基于基金直播数据的识别

摘要本文利用支付宝基金直播数据、投资者观看直播数据和账户级交易数据,实证检验基金直播这一数字技术在金融领域的典型应用对投资者福利的影响及其微观机制。研究表明,投资者观看基金直播后,会表现出强烈的申购意愿,且其投资组合收益率会上升,组合波动率会下降,初步证明了基金直播可以改善投资者福利。同时,基金直播具备空间溢出效应和长周期效应。在横截面上,观看基金直播可显著提升投资者整体投资组合、以及组合中其他持有但未观看过直播的基金投资表现;在时间维度上,观看基金直播可提升投资者在未来3个月、6个月和12个月的投资收益率,并降低对应周期的收益率波动率。微观机制方面,本文发现基金直播具备显著投资者教育功能,观看基金直播可显著降低投资者业绩追逐、频繁交易、过度自信以及处置效应这四类典型的投资者行为偏差。本研究为数字技术发展改善投资者福利提供了经验证据,有助于在数字经济发展过程中更好落实以人民为中心的发展理念。
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企业上市预期成功率、ESG披露与IPO绩效

摘要本文基于大语言模型以及2012—2022年4210份招股说明书数据,对拟上市企业的ESG信息进行量化评估,系统分析了企业IPO预期成功率、ESG披露水平与IPO最终成功率之间的关系。研究发现:(1)企业IPO预期成功率越低,越可能在招股说明书中披露较佳的ESG表现;(2)招股说明书中的ESG表现显著提升了其IPO最终成功率。上述效应在监管部门更为关注企业社会责任时以及在高污染行业中更为显著。进一步分析表明,对于IPO预期成功率较低的企业,招股说明书中的ESG表现无法有效预测其上市后的ESG绩效,因此需警惕此类企业“漂绿”上市的风险。
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