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Military Policing Exacerbates Crime and May Increase Human Rights Abuses: A Randomized Controlled Trial in Cali, Colombia 军事警务加剧犯罪并可能增加侵犯人权:哥伦比亚卡利的一项随机对照试验
Pub Date : 2021-09-16 DOI: 10.2139/ssrn.3925245
R. Blair, Michael Weintraub
Governments across the developing world deploy their armed forces for domestic policing. Advocates of these policies tout their crime reduction effects, while detractors claim they undermine human rights. We experimentally evaluate a military policing intervention in Cali, Colombia, one of the country’s most violent cities. The intervention involved recurring, intensive military patrols targeting crime hotspots, randomly assigned at the city block level. Using administrative crime and human rights data, surveys of more than 10,000 residents, and firsthand observations from civilian monitors, we find that military policing had weak (if any) effects on crime during the intervention, and adverse effects following its completion. We observe higher rates of crime, crime witnessing, crime reporting, and arrests in the weeks after the intervention. We also find suggestive evidence of increased human rights abuses, committed by police officers rather than soldiers. The benefits of military policing likely are small and not worth the costs.
发展中国家的政府都部署了武装部队来维持国内治安。这些政策的支持者吹嘘其减少犯罪的效果,而批评者则声称这些政策损害了人权。我们实验性地评估了在哥伦比亚最暴力的城市之一卡利的军事警务干预。干预措施包括定期、密集的军事巡逻,目标是犯罪热点,随机分配在城市街区一级。利用行政犯罪和人权数据、对1万多名居民的调查以及文职监测员的第一手观察,我们发现军事警务在干预期间对犯罪的影响很弱(如果有的话),在干预完成后产生不利影响。我们观察到,在干预后的几周内,犯罪率、犯罪目击率、犯罪报告率和逮捕率都有所上升。我们还发现有暗示性的证据表明,警察而不是士兵侵犯人权的行为有所增加。军事警务的好处可能很小,而且不值得付出代价。
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引用次数: 4
Color, Loan Approval, and Crimes: The Dark Side of Mortgage Market Deregulation 色彩、贷款审批和犯罪:抵押贷款市场放松管制的阴暗面
Pub Date : 2021-07-11 DOI: 10.2139/ssrn.3884276
Tse-Chun Lin, Mingzhu Tai, Jiayu Zhou
This paper documents that racial differences in credit distribution during a general mortgage credit expansion can lead to unintended negative consequences on crime. Exploiting a federal mortgage market deregulation, we find a significant increase in mortgage approval to white borrowers, while the approval rate to black borrowers is unchanged. More importantly, the local housing boom induced by this credit expansion leads to an increase in money-related crime rates of black offenders. The results highlight an unintended adverse consequence of credit expansion on the welfare of the minorities.
本文证明,在一般抵押贷款信贷扩张期间,信贷分配的种族差异可能导致意想不到的负面后果。利用联邦抵押贷款市场放松管制,我们发现白人借款人的抵押贷款批准率显著增加,而黑人借款人的批准率不变。更重要的是,这种信贷扩张引发的当地房地产繁荣导致黑人罪犯与金钱有关的犯罪率上升。研究结果突显了信贷扩张对少数族裔福利的意外负面影响。
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引用次数: 0
Time-of-Day and Day-of-Week Variations in Amazon Mechanical Turk Survey Responses 亚马逊土耳其机器人调查反应的时间和星期变化
Pub Date : 2021-07-06 DOI: 10.2139/ssrn.3880632
C. Binder
Social science research studies are frequently conducted on Amazon Mechanical Turk (MTurk). I use data from four previous economics studies conducted on Amazon Mechanical Turk, with a total of 2780 observations, to study how participant characteristics and behaviors depend on the day of the week and time of day of participation. Most notably, Saturday participants are older, less educated, and more likely to have low income compared to other participants. Controlling for demographics, Saturday participants are more likely to answer objective knowledge questions correctly and to provide reasonable inflation forecasts, less likely to provide "don't know" responses, and less likely to use social media as a primary source of economic news. Night participants are less likely to get economic news from print sources such as newspapers. Standard data cleaning procedures typically neither reduce nor exacerbate these patterns. Implications of these findings are especially important for researchers designing high-frequency surveys of macroeconomic expectations intended to enable identification of the effects of monetary policy announcements or other events of interest via a high frequency approach. Systematic day-of-week variation in respondents' knowledge and reported expectations, if not properly accounted for, could threaten such an identification scheme.
社会科学研究经常在亚马逊土耳其机器人(MTurk)上进行。我使用了之前在Amazon Mechanical Turk上进行的四项经济学研究的数据,总共有2780个观察结果,来研究参与者的特征和行为如何依赖于一周中的哪一天和参与的时间。最值得注意的是,与其他参与者相比,周六的参与者年龄较大,受教育程度较低,收入较低。在人口统计因素的控制下,周六的参与者更有可能正确回答客观知识问题,并提供合理的通胀预测,不太可能提供“不知道”的回答,也不太可能将社交媒体作为经济新闻的主要来源。夜猫子不太可能从报纸等纸媒上获得经济新闻。标准的数据清理过程通常既不会减少也不会加剧这些模式。这些发现的含义对于设计宏观经济预期高频调查的研究人员尤其重要,这些调查旨在通过高频方法识别货币政策公告或其他感兴趣的事件的影响。被调查者的知识和报告的期望在一周中的系统变化,如果没有得到适当的解释,可能会威胁到这种识别方案。
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引用次数: 2
Education Equity During COVID-19: Analyzing In-Person Priority Policies for Students with Disabilities 2019冠状病毒病期间的教育公平:残疾学生亲临优先政策分析
Pub Date : 2021-06-18 DOI: 10.2139/ssrn.3869935
Bruce Easop
During the COVID-19 pandemic, schools nationwide failed to provide essential supports and services to students with disabilities. Based on reviews of 115 school-district reopening plans, this Note finds that numerous schools sought to remedy these gaps through in-person priority policies designed to return students with disabilities to physical classrooms before other students. This Note evaluates the legal and policy implications of such in-person priority policies through the lenses of critical race theory and dis/ability critical race studies (DisCrit). This Note begins by identifying the structural barriers to learning that students with disabilities faced during school closures, including disparities in internet access and accessibility, removal or reduction of related services, absence of social interaction and structure, and heightened trauma and mental health concerns. While in-person priority policies are meant to mitigate these barriers, this Note argues that they ultimately segregate classrooms and exacerbate already egregious disciplinary disparities. Consequently, these policies impose disproportionate harm on students of color with disabilities. Additionally, this Note calls on policymakers to develop individualized approaches to inperson priority, adopt nonexclusionary disciplinary policies, and expand access to compensatory education and extended school year services. Beyond the current crisis, policymakers must commit to eliminating systems of stratification that categorically filter students into segregated classroom settings. By centering students of color, schools can reimagine special education to ensure that all students receive the education they deserve. © 2022, Stanford Law School. All rights reserved.
在2019冠状病毒病大流行期间,全国各地的学校未能为残疾学生提供必要的支持和服务。根据对115个学区重新开放计划的审查,本报告发现,许多学校试图通过亲自优先政策来弥补这些差距,这些政策旨在让残疾学生先于其他学生返回实体教室。本文通过批判性种族理论和残疾/能力批判性种族研究的视角,评估了这种亲自优先政策的法律和政策含义(DisCrit)。本说明首先确定残疾学生在学校关闭期间面临的结构性学习障碍,包括互联网接入和无障碍方面的差距、相关服务的取消或减少、缺乏社会互动和社会结构,以及创伤和心理健康问题加剧。虽然面对面优先政策旨在减轻这些障碍,但本报告认为,它们最终会隔离教室,加剧本已严重的学科差距。因此,这些政策对有色人种残疾学生造成了不成比例的伤害。此外,本说明呼吁政策制定者制定个性化的方法,以个人为优先事项,采取非排他性的纪律政策,扩大获得补偿性教育和延长学年服务的机会。除了当前的危机,政策制定者还必须致力于消除将学生直接过滤到隔离教室环境中的分层制度。通过以有色人种学生为中心,学校可以重新构想特殊教育,以确保所有学生都能得到他们应得的教育。©2022,斯坦福大学法学院。版权所有。
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引用次数: 4
Gender Mix and Team Performance: Differences between Exogenously and Endogenously Formed Teams 性别混合与团队绩效:外部性与内部性团队的差异
Pub Date : 2021-02-09 DOI: 10.2139/ssrn.3782653
Ainoa Aparicio Fenoll, Sarah Zaccagni
We conduct a randomized controlled trial to study the effect of gender composition of teams on performance, self-concept, working style, and individual satisfaction in endogenously and exogenously formed teams. We randomly divide a sample of high school students into two groups: we assign students in one group to teams of varying gender composition using random assignment and we allow the students in the other group to form teams freely. We find that students form disproportionately more male-predominant teams that those that would be formed under random assignment and that students in endogenously-formed gender-biased teams prefer even more gender-biased teams ex-post. Our results also show that female-predominant teams under-perform other types of teams but these differences disappear when teams are endogenously-formed.
通过随机对照试验,研究了团队性别构成对内因和外因团队绩效、自我概念、工作方式和个人满意度的影响。我们将一组高中生随机分成两组:一组学生随机分成不同性别组成的小组,另一组学生自由组成小组。我们发现,与随机分配组成的团队相比,学生组成的团队中男性占主导地位的比例更高,而在内生形成的性别偏见团队中,学生更喜欢事后组建的性别偏见更大的团队。我们的研究结果还表明,女性主导的团队表现不如其他类型的团队,但当团队是内生组建时,这种差异就消失了。
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引用次数: 0
Preserving User Privacy Through Ephemeral Sharing Design: A Large-Scale Randomized Field Experiment in the Online Dating Context 通过短暂共享设计保护用户隐私:在线约会环境下的大规模随机场实验
Pub Date : 2020-12-01 DOI: 10.2139/ssrn.3740782
Yumei He, Xingchen Xu, Ni Huang, Y. Hong, De Liu
Communication cold-start problems are pervasive in privacy-sensitive settings. For example, due to privacy concerns, users of online dating platforms often refrain from voluntary sharing of sensitive personal information in the initial interaction stage. However, the lack of information sharing impedes trust building, further hurting their probability of securing matches in online dating due to information asymmetry. Considering the privacy-authenticity dilemma and the communication cold-start problem, we examined ephemeral sharing as a privacy-preserving mechanism to navigate the balance between users’ privacy concerns and information sharing in the initial interaction stages in online dating. Ephemeral sharing refers to the digital design that once the information being shared by a sender is disclosed to a receiver for a relatively short period, it will be invisible and non-retrievable to the receiver in the future. In partnership with Summer, an online dating platform, we report a large-scale randomized field experiment with over 70k users to understand how ephemeral sharing influences users’ information sharing behavior and their subsequent matching outcomes. We find that the subjects in the ephemeral group send a significantly larger number of personal photos along with their matching request and a more significant number of photos disclosing the human face. Meanwhile, the ephemeral sharing treatment also leads to a more significant number of matches. Further, through causal mechanism tests, we find that the observed effect on the matching outcomes is fully explained by the increases in requests with photo, a proxy of disinhibition. The sequential mediation tests further show that the increased sharing of personal photos also increases the dating request receivers’ conversational engagements. Lastly, we apply a recursive partitioning algorithm to explore the heterogeneity in the disinhibition effect, and the results illustrate that the platform can perform treatment optimization based on gender, education, and user popularity. Our study contributes to the literature on the design of matching platforms and the literature on using ephemeral sharing designs to address communication cold-start problems in privacy-sensitive settings. Our findings on ephemeral sharing also provide actionable practical implications for the privacy-preserving design of matching platforms.
在隐私敏感的环境中,通信冷启动问题普遍存在。例如,由于隐私问题,在线交友平台的用户在最初的互动阶段往往不会自愿分享敏感的个人信息。然而,缺乏信息共享阻碍了信任的建立,由于信息不对称,进一步损害了他们在网上约会中获得匹配的可能性。考虑到隐私-真实性困境和交流冷启动问题,我们研究了短暂共享作为一种隐私保护机制,在在线约会的初始交互阶段,在用户隐私关注和信息共享之间进行平衡。短暂共享(Ephemeral sharing)是指一旦发送方共享的信息在相对较短的时间内被披露给接收方,在未来接收方将无法看到且无法检索到的数字设计。我们与在线约会平台Summer合作,报告了一项超过7万用户的大规模随机现场实验,以了解短暂分享如何影响用户的信息分享行为及其随后的匹配结果。我们发现,瞬变组的受试者在发送匹配请求的同时发送的个人照片数量明显更多,而且显示人脸的照片数量也更多。同时,短暂的共享处理也导致了更显著的匹配数量。此外,通过因果机制测试,我们发现观察到的对匹配结果的影响完全可以用带有照片的请求的增加来解释,照片是去抑制的代理。序列中介测试进一步表明,个人照片分享的增加也增加了约会请求接受者的会话参与度。最后,我们采用递归划分算法来探索去抑制效果的异质性,结果表明该平台可以基于性别、教育程度和用户受欢迎程度进行治疗优化。我们的研究有助于匹配平台设计的文献和使用短暂共享设计来解决隐私敏感环境下的通信冷启动问题的文献。我们关于短暂共享的研究结果也为匹配平台的隐私保护设计提供了可行的实践意义。
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引用次数: 2
Dirty Money: How Banks Influence Financial Crime 脏钱:银行如何影响金融犯罪
Pub Date : 2020-10-30 DOI: 10.2139/ssrn.3722342
Janet Gao, Joseph Pacelli, Jan Schneemeier, Yufeng Wu
On September 21st, 2020, a consortium of international journalists leaked nearly 2,500 suspicious activity reports (SAR) obtained from the U.S. Financial Crimes Enforcement Network, exposing nearly $2 trillion of money laundering activity. The event raises important questions regarding what role banks play in facilitating financial crime and the effectiveness of SAR reporting. In this study, we examine the incentives that banks face to report money laundering activity via SAR reports, and the implications of a bank’s reporting strategy for criminal activity. We first analyze banks' SAR reporting decisions using a stylized model, which predicts that banks facing depressed revenues from their routine business lines and more profit-seeking pressure adopt more lax reporting policies. These reporting policies help to attract criminals, thus increasing the underlying amount of suspicious activities that banks need to examine and report. Empirically, we test the relation between risk-taking incentives and SAR volume at the county level. We find that counties in which banks face higher competition, lower profitability, and lower market-to-book ratios generate higher volumes of SAR activity. These effects are more pronounced for public banks that face greater risk-taking incentives vis a vis earnings pressure. We establish causality using shale gas expansion in unrelated states. Consistent with risk-taking incentives influencing SARs, we find that banks experiencing shale growth increases (decreases) generate fewer (more) SAR reports. Overall, our results provide important insights regarding the role of banks in influencing financial crime, and suggest that a bank’s reporting policy has indirect implications for local criminal activity.
2020年9月21日,一个国际记者联盟泄露了从美国金融犯罪执法网络获得的近2500份可疑活动报告(SAR),暴露了近2万亿美元的洗钱活动。这一事件提出了一些重要的问题,如银行在促进金融犯罪方面发挥了什么作用,以及特别行政区报告的有效性。在本研究中,我们考察了银行通过SAR报告报告洗钱活动的动机,以及银行报告犯罪活动策略的影响。我们首先使用一个程式化模型分析银行的特别收益报告决策,该模型预测,面临常规业务收入下降和更多逐利压力的银行采用更宽松的报告政策。这些报告政策有助于吸引犯罪分子,从而增加了银行需要检查和报告的可疑活动的潜在数量。在县域层面上,实证检验了风险承担激励与SAR量之间的关系。我们发现,银行面临更激烈竞争、更低盈利能力和更低市净率的国家会产生更高的特别行政区活动量。相对于盈利压力,这些影响对面临更大冒险动机的上市银行更为明显。我们利用不相关州的页岩气扩张来建立因果关系。与影响SAR的风险承担激励一致,我们发现经历页岩增长的银行产生的SAR报告更少(更多)。总体而言,我们的研究结果提供了关于银行在影响金融犯罪中的作用的重要见解,并表明银行的报告政策对当地犯罪活动具有间接影响。
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引用次数: 1
Does Removing Interest Tax Shield Decrease Corporate Debt? Evidence From The 2017 US Tax Reform 取消利息税屏蔽会减少企业债务吗?来自2017年美国税制改革的证据
Pub Date : 2020-10-15 DOI: 10.2139/ssrn.3712728
A. Sanati
Tax advantage of debt has been the cornerstone of corporate finance since the beginning. Nonetheless, providing empirical evidence for the relation between tax incentives and corporate debt has been challenging because of a variety of endogeneity issues. This paper uses a unique feature of the 2017 US tax reform to study this relation. The reform reduces the tax advantage of debt for all but a group of exempted firms. Firms that lose interest deductions significantly reduce corporate debt in the year following the tax reform.
债务的税收优惠从一开始就是企业融资的基石。尽管如此,由于各种内生性问题,为税收优惠与公司债务之间的关系提供经验证据一直具有挑战性。本文利用2017年美国税改的一个独特特征来研究这种关系。这项改革减少了所有公司债务的税收优惠,只有一小部分公司获得了豁免。失去利息减免的企业在税改后的一年内显著减少了企业债务。
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引用次数: 0
What Turns the Taxman On? Tax Aggressiveness, Financial Statement Audits and Tax Return Adjustments in Small Private Companies 是什么让收税员兴奋?小型私营公司的税收侵略性,财务报表审计和纳税申报调整
Pub Date : 2020-10-01 DOI: 10.1142/S1094406020500110
Hannu Ojala, J. Kinnunen, L. Niemi, P. Troberg, Jill Collis
This study examines the effect of tax aggressiveness and voluntary audit of the financial statements on the likelihood of tax adjustments in small private companies. We provide evidence that (1) tax aggressiveness increases the likelihood of the tax authority not accepting taxable income as reported, whereas (2) voluntary audit decreases it. To derive our hypotheses, we build a theoretical stochastic model explaining tax authority’s reactions to bias and noise in tax returns and how these two relate to tax aggressiveness and voluntary audit. In our empirical tests of the hypotheses we use a large proprietary data set comprising internal records of the Finnish Tax Administration for the fiscal year 2010 combined with data on the taxable income reported by around 19,500 small private companies. Our results show that while the findings on tax aggressiveness are significant when measured with the book-tax difference using proprietary tax return data from the Tax Administration, they are insignificant when based on the conventional tax aggressiveness measure of book-tax difference derived from publicly available financial statement data. Our paper contributes to the literature by being the first to document the effects of tax aggressiveness and voluntary audit on tax return adjustments of small private companies.
本研究考察了税收侵略性和财务报表自愿审计对小型私营公司税收调整可能性的影响。我们提供的证据表明:(1)税收攻击性增加了税务机关不接受应纳税收入的可能性,而(2)自愿审计减少了这种可能性。为了推导我们的假设,我们建立了一个理论随机模型来解释税务机关对纳税申报表中的偏见和噪音的反应,以及这两者与税收侵略性和自愿审计的关系。在我们对假设的实证检验中,我们使用了一个大型专有数据集,其中包括2010财年芬兰税务管理局的内部记录,以及大约19,500家小型私营公司报告的应税收入数据。我们的研究结果表明,当使用来自税务管理局的专有纳税申报表数据以账面税收差异衡量时,关于税收侵略性的发现是显著的,但当基于来自公开财务报表数据的账面税收差异的传统税收侵略性衡量时,它们是微不足道的。我们的论文通过首次记录税收侵略性和自愿审计对小型私营公司纳税申报调整的影响,为文献做出了贡献。
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引用次数: 3
Antecedents and Effectiveness of Human Resource Business Partner Performance: Evidence from Banking Sector of Pakistan 人力资源业务伙伴绩效的前因后果与有效性:来自巴基斯坦银行业的证据
Pub Date : 2020-08-30 DOI: 10.2139/ssrn.3683326
Sobia Shahid, D. Siddiqui
The lack of synergy between the HRM functions and the ambiguity of human resources business partnering (HRBP) role are significantly blocking the way of HR professionals to become business partners. The paper proposed a theoretical framework, based on Ibrahim (2015) model focusing on the antecedents of HRBP performance, and further link HRBP performance to Organizational Performance and effectiveness. We proposed that factors such as having HR Business Knowledge by Management, Top Management & Line Manager support to HRBP, Management understanding of HRBP’s Role, and Synergy between HRM practices, positively affect the performance of HRBP, and better performance would lead to increased Organizational Performance and effectiveness. To establish the empirical validity, we conducted a self-administered study, from 250 employees belongs to HR top management, line managers, and professionals working in the banking sector. Data were analyzed using confirmatory factor analysis and structured equation modeling. The results showed that among other factors, Synergy between HRM practices has a positive and significant influence on HRBP performance. However, HRBP performance positively and significantly affects both Organizational Performance and effectiveness. The findings revealed that HRBP would play an important and positive role to achieve goals, implement HR strategy, and also increased Synergy between HRM functions makes HRBP performance more effective.
人力资源管理职能之间缺乏协同作用和人力资源业务伙伴(HRBP)角色的模糊性严重阻碍了人力资源专业人员成为业务伙伴的道路。本文在Ibrahim(2015)模型的基础上提出了一个理论框架,重点关注HRBP绩效的前因由,并进一步将HRBP绩效与组织绩效和有效性联系起来。提出了人力资源管理人员具备人力资源业务知识、高层管理人员具备人力资源业务知识;直线经理对HRBP的支持,管理层对HRBP角色的理解,以及人力资源管理实践之间的协同作用,对HRBP的绩效产生积极影响,更好的绩效将导致组织绩效和有效性的提高。为了建立实证有效性,我们进行了一项自我管理的研究,研究对象包括250名在银行部门工作的人力资源高层管理人员、直线经理和专业人员。数据分析采用验证性因子分析和结构方程模型。结果表明,在其他因素中,人力资源管理实践之间的协同作用对HRBP绩效具有显著的正向影响。然而,HRBP绩效对组织绩效和有效性都有显著的正向影响。研究结果表明,HRBP将在实现目标、实施人力资源战略方面发挥重要而积极的作用,人力资源管理职能之间协同作用的增强使HRBP绩效更加有效。
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引用次数: 0
期刊
ERN: Primary Taxonomy (Topic)
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