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Justifying Dissent 证明异议
1区 经济学 Q1 ECONOMICS Pub Date : 2023-01-24 DOI: 10.1093/qje/qjad007
Leonardo Bursztyn, Georgy Egorov, Ingar Haaland, Aakaash Rao, Christopher Roth
Abstract Dissent plays an important role in any society, but dissenters are often silenced through social sanctions. Beyond their persuasive effects, rationales providing arguments supporting dissenters’ causes can increase the public expression of dissent by providing a “social cover” for voicing otherwise stigmatized positions. Motivated by a simple theoretical framework, we experimentally show that liberals are more willing to post a tweet opposing the movement to defund the police, are seen as less prejudiced, and face lower social sanctions when their tweet implies they had first read credible scientific evidence supporting their position. Analogous experiments with conservatives demonstrate that the same mechanisms facilitate anti-immigrant expression. Our findings highlight both the power of rationales and their limitations in enabling dissent and shed light on phenomena such as social movements, political correctness, propaganda, and antiminority behavior.
异议在任何社会中都扮演着重要的角色,但异议者往往因社会制裁而被噤声。除了具有说服力之外,为持不同政见者的理由提供支持的理由,还可以通过为表达不受歧视的立场提供“社会掩护”,从而增加公众对不同政见者的表达。在一个简单的理论框架的推动下,我们通过实验表明,当自由主义者的推文暗示他们首先阅读了支持其立场的可靠科学证据时,他们更愿意发布推文反对为警察撤资的运动,被视为较少偏见,并且面临较少的社会制裁。对保守派的类似实验表明,同样的机制促进了反移民的表达。我们的研究结果强调了理性的力量及其在支持异议方面的局限性,并揭示了诸如社会运动、政治正确、宣传和反少数群体行为等现象。
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引用次数: 5
Misdemeanor Prosecution 轻罪起诉
1区 经济学 Q1 ECONOMICS Pub Date : 2023-01-23 DOI: 10.1093/qje/qjad005
Amanda Agan, Jennifer L Doleac, Anna Harvey
Abstract Communities across the United States are reconsidering the public safety benefits of prosecuting nonviolent misdemeanor offenses, yet there is little empirical evidence to inform policy in this area. We report the first estimates of the causal effects of misdemeanor prosecution on defendants’ subsequent criminal justice involvement. We leverage the as-if random assignment of nonviolent misdemeanor cases to assistant district attorneys (ADAs) who decide whether a case should be prosecuted in the Suffolk County District Attorney’s Office in Massachusetts. These ADAs vary in the average leniency of their prosecution decisions. We find that for the marginal defendant, nonprosecution of a nonviolent misdemeanor offense leads to a 53% reduction in the likelihood of a new criminal complaint and a 60% reduction in the number of new criminal complaints over the next two years. These local average treatment effects are largest for defendants without prior criminal records, suggesting that averting criminal record acquisition is an important mechanism driving our findings. We also present evidence that a recent policy change in Suffolk County imposing a presumption of nonprosecution for nonviolent misdemeanor offenses had similar beneficial effects, decreasing the likelihood of subsequent criminal justice involvement.
美国各地的社区都在重新考虑起诉非暴力轻罪对公共安全的好处,但在这一领域,几乎没有经验证据可以为政策提供信息。我们报告了对轻罪起诉对被告随后的刑事司法参与的因果影响的第一次估计。我们将非暴力轻罪案件随机分配给助理地区检察官(ADAs),由他们决定是否在马萨诸塞州萨福克县地区检察官办公室起诉一个案件。这些助理检察官的起诉决定的平均宽大程度各不相同。我们发现,对于边缘被告,非暴力轻罪的不起诉导致在接下来的两年里,新的刑事诉讼的可能性降低了53%新的刑事诉讼的数量减少了60%。对于没有犯罪记录的被告,这些当地平均治疗效果最大,这表明避免获取犯罪记录是推动我们研究结果的重要机制。我们还提供证据表明,萨福克县最近的一项政策变化,对非暴力轻罪推定不起诉,具有类似的有益效果,降低了随后刑事司法介入的可能性。
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引用次数: 3
Learning from Shared News: When Abundant Information Leads to Belief Polarization 从分享的新闻中学习:当丰富的信息导致信仰两极分化
1区 经济学 Q1 ECONOMICS Pub Date : 2023-01-09 DOI: 10.1093/qje/qjac045
Renee Bowen, Danil Dmitriev, Simone Galperti
Abstract We study learning via shared news. Each period agents receive the same quantity and quality of firsthand information and can share it with friends. Some friends (possibly few) share selectively, generating heterogeneous news diets across agents. Agents are aware of selective sharing and update beliefs by Bayes’s rule. Contrary to standard learning results, we show that beliefs can diverge in this environment, leading to polarization. This requires that (i) agents hold misperceptions (even minor) about friends’ sharing and (ii) information quality is sufficiently low. Polarization can worsen when agents’ friend networks expand. When the quantity of firsthand information becomes large, agents can hold opposite extreme beliefs, resulting in severe polarization. We find that news aggregators can curb polarization caused by news sharing. Our results hold without media bias or fake news, so eliminating these is not sufficient to reduce polarization. When fake news is included, it can lead to polarization but only through misperceived selective sharing. We apply our theory to shed light on the polarization of public opinion about climate change in the United States.
我们通过分享新闻来研究学习。每个时期的代理收到相同数量和质量的第一手信息,并可以与朋友分享。一些朋友(可能很少)有选择地分享,在代理之间产生异质的新闻饮食。根据贝叶斯规则,智能体意识到选择性共享和更新信念。与标准的学习结果相反,我们表明信念在这种环境中会发生分歧,导致两极分化。这需要(i)代理人对朋友的分享有误解(即使是轻微的误解),(ii)信息质量足够低。当代理人的朋友网络扩大时,两极分化会加剧。当第一手信息的数量变大时,代理人可能持有相反的极端信念,导致严重的两极分化。我们发现新闻聚合器可以抑制由新闻分享引起的两极分化。我们的结果在没有媒体偏见或假新闻的情况下成立,因此消除这些并不足以减少两极分化。当包含假新闻时,它可能导致两极分化,但只有通过错误的选择性分享。我们运用我们的理论来阐明美国关于气候变化的公众舆论的两极分化。
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引用次数: 3
The Fractured-Land Hypothesis 断裂土地假说
1区 经济学 Q1 ECONOMICS Pub Date : 2023-01-09 DOI: 10.1093/qje/qjad003
Jesús Fernández-Villaverde, Mark Koyama, Youhong Lin, Tuan-Hwee Sng
Abstract Patterns of state formation have crucial implications for comparative economic development. Diamond (1997) famously argued that “fractured land” was responsible for China’s tendency toward political unification and Europe’s protracted polycentrism. We build a dynamic model with granular geographical information in terms of topographical features and the location of productive agricultural land to quantitatively gauge the effects of fractured land on state formation in Eurasia. We find that topography alone is sufficient but not necessary to explain polycentrism in Europe and unification in China. Differences in land productivity, in particular the existence of a core region of high land productivity in northern China, deliver the same result. We discuss how our results map into observed historical outcomes, assess how robust our findings are, and analyze the differences between theory and data in Africa and the Americas.
国家形成模式对比较经济发展具有至关重要的影响。戴蒙德(1997)提出了著名的观点,即“破碎的土地”是中国倾向于政治统一和欧洲旷日持久的多中心主义的原因。我们根据地形特征和生产性农业用地的位置建立了一个包含颗粒地理信息的动态模型,以定量衡量欧亚大陆破碎土地对国家形成的影响。我们发现,对于解释欧洲的多中心主义和中国的统一,地形本身是充分的,但不是必要的。土地生产力的差异,特别是中国北方存在的高土地生产力核心区,提供了同样的结果。我们讨论了我们的结果如何映射到观察到的历史结果,评估了我们的发现的可靠性,并分析了非洲和美洲的理论和数据之间的差异。
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引用次数: 3
Market Power and Spatial Competition in Rural India 印度农村的市场力量和空间竞争
1区 经济学 Q1 ECONOMICS Pub Date : 2023-01-09 DOI: 10.1093/qje/qjad004
Shoumitro Chatterjee
Abstract Market power of intermediaries contributes to the low incomes of farmers in India. I study the role of spatial competition between intermediaries in determining the prices that farmers receive in India by focusing on a law that restricts farmers to selling their goods to intermediaries in their own state. I show that the discontinuities in market power generated by the law translate into discontinuities in prices. Increasing spatial competition by one standard deviation causes prices received by farmers to increase by 6.4%. I propose and estimate a quantitative spatial model of bargaining and trade to shed light on spatial and aggregate implications. Estimates from the structural model suggest that removing the interstate trade restriction in India would increase competition between intermediaries. Thereby average farmer prices and their output would increase by at least 11% and 7%, respectively. The value of the national crop output would increase by at least 18%. However, there are distributional consequences as well, as some farmers stand to lose due to increased local production.
中间商的市场支配力是造成印度农民收入偏低的原因之一。我研究了中介机构之间的空间竞争在决定印度农民获得的价格方面的作用,重点关注了一项限制农民向自己邦的中介机构出售商品的法律。我展示了由法律产生的市场力量的不连续性转化为价格的不连续性。空间竞争每增加一个标准差,农民获得的价格就会增加6.4%。我提出并估计了一个议价和贸易的定量空间模型,以阐明空间和总体影响。结构模型的估计表明,取消印度的州际贸易限制将增加中间商之间的竞争。因此,农民的平均价格和产量将分别增长至少11%和7%。全国农作物产值将至少增加18%。然而,也有分配方面的后果,因为一些农民会因为当地产量的增加而蒙受损失。
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引用次数: 5
Cutting the Innovation Engine: How Federal Funding Shocks Affect University Patenting, Entrepreneurship, and Publications 切断创新引擎:联邦资金冲击如何影响大学专利、创业和出版
1区 经济学 Q1 ECONOMICS Pub Date : 2023-01-09 DOI: 10.1093/qje/qjac046
Tania Babina, Alex Xi He, Sabrina T Howell, Elisabeth Ruth Perlman, Joseph Staudt
Abstract This article studies how federal funding affects the innovation outputs of university researchers. We link person-level research grants from 22 universities to patents, publications, and career outcomes from the U.S. Census Bureau. We focus on the effects of large, idiosyncratic, and temporary cuts to federal funding in a researcher’s preexisting narrow field of study. Using an event study design, we document that these negative federal funding shocks reduce high-tech entrepreneurship and publications but increase patenting. The lost publications tend to be higher quality and more basic, whereas the additional patents tend to be lower quality, less general, and more often privately assigned. These federal funding cuts lead to an increase in private funding, which partially compensates for the decline in federal funding. Together with evidence from industry-university contracts, the results suggest that federal funding cuts shift university research funding from federal to private sources and lead to innovation outputs that are less openly accessible and more often appropriated by corporate funders.
摘要本文研究了联邦资助对高校科研人员创新产出的影响。我们将22所大学的个人研究资助与美国人口普查局的专利、出版物和职业成果联系起来。我们关注的是,在研究人员先前存在的狭窄研究领域中,大规模、特殊和临时削减联邦资助的影响。使用事件研究设计,我们证明这些负面的联邦资金冲击减少了高科技创业和出版物,但增加了专利申请。失去的出版物往往质量更高,更基本,而额外的专利往往质量较低,不那么普遍,更多的是私人转让。这些联邦资金的削减导致私人资金的增加,这部分弥补了联邦资金的减少。结合产学研合同的证据,研究结果表明,联邦资金削减将大学研究资金从联邦资金转移到私人资金来源,导致创新产出不太容易公开获取,而且更经常被企业资助者挪用。
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引用次数: 4
Globalization, Trade Imbalances, and Labor Market Adjustment 全球化、贸易失衡与劳动力市场调整
1区 经济学 Q1 ECONOMICS Pub Date : 2023-01-02 DOI: 10.1093/qje/qjac043
Rafael Dix-Carneiro, João Paulo Pessoa, Ricardo Reyes-Heroles, Sharon Traiberman
Abstract We argue that modeling trade imbalances is crucial for understanding transitional dynamics in response to globalization shocks. We build and estimate a general equilibrium, multicountry, multisector model of trade with two key ingredients: (i) endogenous trade imbalances arising from households’ consumption and saving decisions; (ii) labor market frictions across and within sectors. We use our model to perform several empirical exercises. We find that the “China shock” accounted for 28% of the decline in U.S. manufacturing between 2000 and 2014—1.65 times the magnitude predicted from a model imposing balanced trade. A concurrent rise in U.S. service employment led to a negligible aggregate unemployment response. We benchmark our model’s predictions for the gains from trade against the popular ACR sufficient-statistics approach. We find that our predictions for the long-run gains from trade and consumption dynamics significantly diverge.
摘要本文认为,建立贸易失衡模型对于理解应对全球化冲击的转型动态至关重要。我们建立并估计了一个具有两个关键要素的一般均衡、多国、多部门贸易模型:(i)由家庭消费和储蓄决策引起的内生贸易失衡;(ii)部门之间和部门内部的劳动力市场摩擦。我们使用我们的模型来执行几个实证练习。我们发现,2000年至2014年间,“中国冲击”占美国制造业衰退的28%,是贸易平衡模型预测的幅度的65倍。与此同时,美国服务业就业的增加导致总体失业率的反应微不足道。我们将模型对贸易收益的预测与流行的ACR充分统计方法进行对比。我们发现,我们对贸易和消费动态带来的长期收益的预测存在显著分歧。
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引用次数: 7
Plasmonic Azobenzene Chemoreporter for Surface-Enhanced Raman Scattering Detection of Biothiols. 用于表面增强拉曼散射检测生物硫醇的质子偶氮苯化学导管。
IF 4.9 1区 经济学 Q1 ECONOMICS Pub Date : 2022-04-22 DOI: 10.3390/bios12050267
Mariacristina Turino, Ramon A Alvarez-Puebla, Luca Guerrini

Low molecular weight thiols (biothiols) are highly active compounds extensively involved in human physiology. Their abnormal levels have been associated with multiple diseases. In recent years, major efforts have been devoted to developing new nanosensing methods for the low cost and fast quantification of this class of analytes in minimally pre-treated samples. Herein, we present a novel strategy for engineering a highly efficient surface-enhanced Raman scattering (SERS) spectroscopy platform for the dynamic sensing of biothiols. Colloidally stable silver nanoparticles clusters equipped with a specifically designed azobenzene derivative (AzoProbe) were generated as highly SERS active substrates. In the presence of small biothiols (e.g., glutathione, GSH), breakage of the AzoProbe diazo bond causes drastic spectral changes that can be quantitatively correlated with the biothiol content with a limit of detection of ca. 5 nM for GSH. An identical response was observed for other low molecular weight thiols, while larger macromolecules with free thiol groups (e.g., bovine serum albumin) do not produce distinguishable spectral alterations. This indicates the suitability of the SERS sensing platform for the selective quantification of small biothiols.

低分子量硫醇(生物硫醇)是高度活跃的化合物,广泛参与人体生理活动。它们的异常水平与多种疾病相关。近年来,人们一直致力于开发新的纳米传感方法,以低成本、快速地定量检测预处理极少的样品中的这一类分析物。在此,我们提出了一种新颖的策略,用于设计一种高效的表面增强拉曼散射(SERS)光谱平台,以实现对生物硫醇的动态传感。我们生成了胶体稳定的银纳米粒子团簇,其中配备了专门设计的偶氮苯衍生物(AzoProbe),作为高度 SERS 活性基底。在存在小型生物硫醇(如谷胱甘肽,GSH)的情况下,AzoProbe 重氮键的断裂会导致光谱的急剧变化,这种变化可与生物硫醇的含量定量相关,GSH 的检测限约为 5 nM。其他低分子量硫醇也有相同的反应,而具有游离硫醇基团的较大大分子(如牛血清白蛋白)则不会产生明显的光谱变化。这表明 SERS 传感平台适用于选择性地量化小型生物硫醇。
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引用次数: 0
Would Eliminating Racial Disparities in Motor Vehicle Searches have Efficiency Costs? 消除机动车搜索中的种族差异会带来效率成本吗?
IF 13.7 1区 经济学 Q1 ECONOMICS Pub Date : 2021-05-21 DOI: 10.1093/QJE/QJAB018
B. Feigenberg, Conrad Miller
During traffic stops, police search black and Hispanic motorists more than twice as often as white motorists, yet those searches are no more likely to yield contraband. We ask whether equalizing search rates by motorist race would reduce contraband yield. We use unique administrative data from Texas to isolate variation in search behavior across and within highway patrol troopers and find that search rates are unrelated to the proportion of searches that yield contraband. We find that troopers can equalize search rates across racial groups, maintain the status quo search rate, and increase contraband yield. Troopers appear to be limited in their ability to discern between motorists that are more or less likely to carry contraband. JEL Codes: J15, K42. ∗We thank the editors, Larry Katz and Stefanie Stantcheva, five anonymous referees, Ian Ayres, Felipe Goncalves, Peter Hull, Patrick Kline, Jonathan Leonard, David Levine, Dan O’Flaherty, Steven Rivkin, Evan Rose, Yotam Shem-Tov, Chris Walters, and seminar participants at USC, University of Illinois, Chicago, the Online Economics of Crime seminar, the Online Economics of Racism seminar, NBER Summer Institute, Yale SOM, Harvard, Stanford, and MIT for helpful comments. We thank researchers at the Stanford Open Policing Project for providing data on Texas Highway Patrol stops. We thank the Fisher Center for Real Estate and Urban Economics at Haas for providing computing resources.
在交通堵塞期间,警察搜查黑人和西班牙裔司机的频率是白人司机的两倍多,但这些搜查不太可能产生违禁品。我们想知道,按驾车者种族平均搜索率是否会降低违禁品产量。我们使用来自得克萨斯州的独特行政数据来隔离高速公路巡逻队内部和内部搜查行为的差异,发现搜查率与产生违禁品的搜查比例无关。我们发现,骑警可以使不同种族的搜查率相等,维持现状的搜查率,并增加违禁品的产量。士兵们辨别或多或少可能携带违禁品的司机的能力似乎有限。JEL代码:J15、K42.*我们感谢编辑Larry Katz和Stefanie Stantcheva,五位匿名裁判Ian Ayres、Felipe Goncalves、Peter Hull、Patrick Kline、Jonathan Leonard、David Levine、Dan O’Flaherty、Steven Rivkin、Evan Rose、Yotam Shem Tov、Chris Walters,NBER Summer Institute、Yale SOM、Harvard、Stanford和MIT提供有用的评论。我们感谢斯坦福开放警务项目的研究人员提供了德克萨斯州公路巡逻站的数据。我们感谢哈斯费雪房地产和城市经济中心提供的计算资源。
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引用次数: 19
Unemployment Insurance and Job Search Behavior* 失业保险与求职行为*
IF 13.7 1区 经济学 Q1 ECONOMICS Pub Date : 2021-03-24 DOI: 10.1093/qje/qjaa037
I. Marinescu, Daphné Skandalis
Unemployment insurance (UI) can affect unemployment duration and re-employment wages, through various dimensions of unemployed workers’ job search behavior. We shed light on the effects of UI on job search behavior using new longitudinal data: we link administrative registers to data from a major online search platform, and track the job applications sent over the unemployment spells of about 500,000 French workers. We identify changes in individual search behavior caused by UI around benefits exhaustion, after accounting for changes in the sample composition—i.e. dynamic selection—and for the effect of the time spent unemployed—i.e. duration dependence. We show that search effort (the count of job applications) increases by at least 50% during the year preceding benefits exhaustion and remains relatively high thereafter. The target monthly wage decreases by at least 2.4% during the year preceding benefits exhaustion, and remains relatively low thereafter. We document particularly large dynamic selection around benefits exhaustion, as some workers increase their search effort more before exhaustion and find a job faster. We also show evidence for duration dependence: workers decrease their target wage by 1.5% over each year of unemployment, irrespective of their UI status. Overall, the effect of UI on individual search behavior is consistent with the predictions of search models and constitutes evidence against search-free models where UI merely subsidizes leisure.
失业保险可以通过失业人员求职行为的各个维度影响失业期限和再就业工资。我们使用新的纵向数据揭示了用户界面对求职行为的影响:我们将行政登记与主要在线搜索平台的数据联系起来,并跟踪在约50万法国工人失业期间发送的求职申请。在考虑了样本组成的变化(即动态选择)和失业时间的影响(即持续时间依赖性)后,我们确定了福利耗尽前后用户界面导致的个人搜索行为的变化。我们发现,在福利耗尽前一年,搜索工作量(求职人数)至少增加了50%,此后保持相对较高的水平。在福利耗尽前一年,目标月工资至少下降2.4%,此后仍相对较低。我们记录了围绕福利耗尽的特别大的动态选择,因为一些员工在耗尽之前会加大搜索力度,更快地找到工作。我们还展示了持续时间依赖性的证据:工人在失业的每一年中,无论他们的UI状态如何,他们的目标工资都会下降1.5%。总体而言,用户界面对个人搜索行为的影响与搜索模型的预测一致,并构成了反对用户界面仅补贴休闲的无搜索模型的证据。
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引用次数: 11
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