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What Determines the Success of Housing Mobility Programs? 是什么决定了住房流动计划的成功?
Pub Date : 2020-11-24 DOI: 10.2139/ssrn.3737041
Dionissi Aliprantis, Hal Martin, Kristen N. Tauber
There is currently interest in crafting public housing policy that combats, rather than contributes to, the residential segregation in American cities. One such policy is the Housing Mobility Program (HMP), which aims to help people move from disinvested neighborhoods to ones with more opportunities. This paper studies how design features influence the success of HMPs in reducing racial segregation. We find that the choice of neighborhood opportunity index used to define the opportunity areas to which participants are encouraged to move has limited influence on HMP success. In contrast, we find that three design features have large effects on HMP success: 1) whether the geographic scope is confined to the central city or is implemented as a metro-level partnership; 2) whether the eligibility criteria are race-based, race-conscious, or race-neutral; 3) whether tenant counseling, tenant search assistance, and landlord outreach are successful in relaxing rental housing supply constraints.
目前,人们有兴趣制定公共住房政策,以对抗而不是加剧美国城市的居住隔离。住房流动计划(Housing Mobility Program, HMP)就是这样一项政策,旨在帮助人们从投资不足的社区搬到机会更多的社区。本文研究了设计特征如何影响hmp在减少种族隔离方面的成功。我们发现,邻里机会指数的选择对HMP成功的影响有限,而邻里机会指数被用来定义鼓励参与者迁移的机会区域。对比发现,HMP的成功与否取决于三个设计特征:1)地理范围是否局限于中心城市,还是作为城市层面的伙伴关系实施;2)资格标准是否基于种族、种族意识或种族中立;3)租客辅导、租客搜寻协助和房东外展是否成功纾缓租住房屋供应的限制。
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引用次数: 3
Antecedents of Student Retention: A Predictive Modelling Approach 学生保留的前因:一种预测模型方法
Pub Date : 2020-11-17 DOI: 10.15520/ijcrr.v11i11.860
Prathamesh Muzumdar, Ganga Prasad Basyal, P. Vyas
Today university and college rankings are the major determinants influencing the enrollment decision of the current student. Universities improving on certain aspects are found to retain a majority of freshman students despite the university tier status. These aspects are seen to determine a student’s retention, which eventually helps the university to attend a higher tier status. The study tries to evaluate the aspects which primarily influence the future enrollment decision, thereby resulting in retaining the student. The evaluated aspects deal with the intrinsic factors responsible to support the academic tenure of a current student. The aspects, mainly revolve around the factors like peer effectiveness, academic progress, and academic advising out of which academic advising is a controlled variable addressed by the university administration. Two other variables are seen to indirectly be controlled by the administration. In the initial stage principal component analysis is used to identify the factors, followed by multiple regression analysis to determine the influence of each factor on the likelihood of retention. To validate the facts logistic regression analysis is used to verify the same factors that influence the actual retention of the student.
今天,大学和学院排名是影响当前学生入学决定的主要决定因素。研究发现,在某些方面有所改善的大学尽管处于大学等级,但仍能留住大部分新生。这些方面被视为决定学生的留校率,这最终有助于大学进入更高层次的地位。该研究试图评估主要影响未来招生决策的方面,从而导致保留学生。评估的方面涉及到支持在校学生终身教职的内在因素。这些方面主要围绕着同伴效能、学业进步和学术建议等因素,其中学术建议是由大学管理部门处理的控制变量。另外两个变量被认为是由政府间接控制的。在初始阶段,采用主成分分析确定各因素,然后采用多元回归分析确定各因素对留存可能性的影响。为了验证这些事实,我们使用逻辑回归分析来验证影响学生实际保留的相同因素。
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引用次数: 5
Machine Predictions and Human Decisions with Variation in Payoffs and Skills 机器预测和人类决策与变化的回报和技能
Pub Date : 2020-11-01 DOI: 10.2139/ssrn.3726018
M. A. Ribers, H. Ullrich
Human decision-making differs due to variation in both incentives and available information. This generates substantial challenges for the evaluation of whether and how machine learning predictions can improve decision outcomes. We propose a framework that incorporates machine learning on large-scale administrative data into a choice model featuring heterogeneity in decision maker payoff functions and predictive skill. We apply our framework to the major health policy problem of improving the efficiency in antibiotic prescribing in primary care, one of the leading causes of antibiotic resistance. Our analysis reveals large variation in physicians’ skill to diagnose bacterial infections and in how physicians trade off the externality inherent in antibiotic use against its curative benefit. Counterfactual policy simulations show the combination of machine learning predictions with physician diagnostic skill achieves a 25.4 percent reduction in prescribing and the largest welfare gains compared to alternative policies for estimated as well as plausible hypothetical weights on the antibiotic resistance externality.
人类的决策因激励和可用信息的不同而不同。这对评估机器学习预测是否以及如何改善决策结果产生了重大挑战。我们提出了一个框架,将大规模行政数据上的机器学习整合到一个具有决策者支付函数和预测技能异质性的选择模型中。我们将我们的框架应用于提高初级保健中抗生素处方效率的主要卫生政策问题,这是抗生素耐药性的主要原因之一。我们的分析揭示了医生诊断细菌感染的技能以及医生如何权衡抗生素使用的内在外部性与治疗效果之间的巨大差异。反事实政策模拟显示,机器学习预测与医生诊断技能相结合,在抗生素耐药性外部性的估计权重和合理假设权重方面,与替代政策相比,处方减少了25.4%,福利收益最大。
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引用次数: 7
Demand-Side Assistance in Australia’s Rental Housing Market: Exploring Reform Options 澳大利亚租赁住房市场的需求侧援助:探索改革方案
Pub Date : 2020-10-29 DOI: 10.18408/ahuri8120801
R. Ong, Hal Pawson, Ranjodh Singh, Chris Martin
This research examines possible cost-effective reforms of Commonwealth Rent Assistance (CRA) (demand-side housing assistance) that could improve housing outcomes for low-income renters.
本研究探讨了联邦租金援助(CRA)(需求方住房援助)可能具有成本效益的改革,可以改善低收入租房者的住房结果。
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引用次数: 7
POLÍTICA DE ACESSO E PERMANÊNCIA EDUCAÇÃO SUPERIOR NO BRASIL: O PROGRAMA UNIVERSIDADE PARA TODOS (Access and Permanence Policy Higher Education in Brazil: The University for All Program) 巴西高等教育准入和永久政策:全民大学计划(巴西高等教育准入和永久政策:全民大学计划)
Pub Date : 2020-10-25 DOI: 10.2139/ssrn.3705828
Alexandre Godoy Dotta, Carolina Braglia Aloise Bertazolli
Portguese abstract: O artigo investiga a política pública brasileira voltada para a promoção do acesso e da permanência dos estudantes na universidade. Aborda as principais ações voltadas para este tipo de educação descrevendo algumas das principais mudanças ocorridas na política educacional para a educação superior durante o governo Fernando Henrique Cardoso (1995-2002) e no de Luiz Inácio Lula da Silva (2003-2010). Destaca o processo de criação e de funcionamento do Programa Universidade para Todos (PROUNI) instituído mediante Medida Provisória nº 213 em 2004, que posteriormente se converteu na Lei nº 11.096 em 2005. Contextualiza apontando a criação da Lei nº 10.861 que instituiu o SINAES – Sistema Nacional de Avaliação da Educação Superior e o ENADE – Exame Nacional de Desempenho dos Estudantes. Desenvolve apontando os dados do relatório e sobre Gastos Tributários da Secretaria de Macroavaliação Governamental do Tribunal de Contas da União. Aponta que o volume da renúncia fiscal do Estado descrevendo o número de bolsas distribuídas, e ainda, fazendo uma evolução do custo anual e custo mensal por aluno no programa no período de 2005 até 2012. Apresenta o número da evasão dos bolsistas PROUNI de 2005 até 2009. Conclui apontando os principais benefícios resultantes do programa.

English abstract: The paper investigates Brazilian public policy to promote access and permanence for students at the university. It deals with the main actions aimed at this type of education, describing some of the main changes that occurred in the educational policy for higher education during the Fernando Henrique Cardoso administration (1995-2002) compared to that of Luiz Inácio Lula da Silva (2003-2010). It highlights the process of creation and operation of the University for All Program (PROUNI) instituted by Provisional Measure nº 213 in 2004, which later became Law nº 11.096 in 2005. Contextualizes pointing to the creation of Law nº 10.861 that instituted (SINAES) - National Higher Education Assessment System and (ENADE) - National Student Performance Exam. It develops pointing the data of the report and on Tax Expenses of the Governmental Macroevaluation Secretariat of the Federal Court of Accounts. It points out that the volume of the State's fiscal waiver describing the number of scholarships distributed, and also, making the evolution of the annual cost and monthly cost per student in the program from 2005 to 2012. It presents the dropout number of PROUNI fellows from 2005 to 2009. It concludes by pointing out the main benefits resulting from the program.
葡萄牙摘要:这篇文章调查了巴西旨在促进学生进入大学和留在大学的公共政策。它讨论了针对这类教育的主要行动,描述了在费尔南多·恩里克·卡多索(1995-2002)和路易斯·inacio·卢拉·达席尔瓦(2003-2010)政府期间高等教育教育政策的一些主要变化。它强调了2004年通过第213号临时措施建立的全民大学计划(PROUNI)的创建和运作过程,该计划后来在2005年成为第11.096号法律。背景指出了第10.861号法律的制定,该法律建立了SINAES -国家高等教育评估系统和ENADE -国家学生成绩考试。它通过指出报告中的数据和联邦审计法院政府宏观评估秘书处的税收支出来发展。它指出,国家免税的数量描述了分配的奖学金数量,并对2005年至2012年期间每个学生的年度成本和每月成本进行了演变。它显示了从2005年到2009年普罗尼奖学金获得者的逃避人数。最后指出了该计划的主要好处。英文摘要:该论文调查了巴西的公共政策,以促进学生在大学的入学和留校。它涉及针对这类教育的主要行动,描述了费尔南多·恩里克·卡多索政府(1995-2002年)和路易斯·伊纳西奥·卢拉·达席尔瓦政府(2003-2010年)期间高等教育教育政策的一些主要变化。它突出了2004年根据第213号临时措施设立的全方案大学(PROUNI)的创建和运作过程,该措施后来在2005年成为第11,096号法律。关于制定第10.861号法律(SINAES)——国家高等教育评估制度和(ENADE)——国家学生成绩考试的背景资料。它详细说明了联邦会计法院政府宏观评估秘书处的报告日期和税收支出情况。它指出,国家免税的数量描述了发放的奖学金数量,也描述了2005年至2012年项目中每个学生的年度费用和每月费用的演变。它展示了从2005年到2009年普罗尼研究员数量的下降。报告的结论是指出该方案的主要效益。
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引用次数: 0
The Precision of Symbolic Numerical Representation in Verbal Format has an Indirect Effect on Math Performance in First Grade 语言形式的符号数字表征精度对一年级学生数学成绩有间接影响
Pub Date : 2020-10-08 DOI: 10.2139/ssrn.3707386
G. Larina, Y. Kuzmina, G. Kanonirs
Numerical information can be represented in three formats: two symbolic (visual (digits) and verbal (number words)) and one nonsymbolic (analog) format. Studies have shown that the precision of symbolic numerical representation is associated with math performance. The precision of symbolic representation is mostly discussed as the precision of representation in a visual format, whereas the precision of representation in verbal format and its relation with math performance is less studied. The current study examines the precision of symbolic numerical representation in visual and verbal formats and the relationship between such precision and math performance when controlling for prior math performance, nonsymbolic numerical representation, phonological processing, reading skills and working memory. We used data from 367 Russian first graders (mean age, 7.6 years; 53% girls). To assess the precision of symbolic numerical representation, magnitude comparison tasks with digits and number words were used. It was found that the precision of symbolic representation in verbal format did not have a direct effect on math performance, but has an indirect effect via visual format of symbolic representation, even when controlling for prior math performance and other cognitive abilities.
数字信息可以用三种格式表示:两种符号(视觉(数字)和口头(数字单词))和一种非符号(模拟)格式。研究表明,符号数字表示的精度与数学成绩有关。符号表征的精度主要讨论为视觉表征的精度,而语言表征的精度及其与数学成绩的关系研究较少。本研究考察了在控制数学成绩、非符号数字表征、语音加工、阅读技能和工作记忆的前提下,视觉和语言形式的符号数字表征的精度,以及这种精度与数学成绩之间的关系。我们使用了367名俄罗斯一年级学生的数据(平均年龄7.6岁;53%的女孩)。为了评估符号数字表示的精度,使用了数字和数字单词的大小比较任务。研究发现,即使在控制先前的数学成绩和其他认知能力的情况下,语言形式的符号表征的准确性对数学成绩没有直接影响,但通过视觉形式的符号表征对数学成绩有间接影响。
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引用次数: 0
Search Benefit in Housing Markets: An Inverted U‐Shaped Price and Tom Relation 住房市场的搜索收益:价格与汤姆的倒U型关系
Pub Date : 2020-09-01 DOI: 10.1111/1540-6229.12221
Xin He, Zhenguo Lin, Yingchun Liu, Michael J. Seiler
The nature of the relationship between a property's selling price and its marketing time in the housing market remains an open question to date, despite almost 40 years of inquiry and hundreds of regressions conducted on various data sources. This study attempts to settle the long-standing open question by examining the issue from a new perspective. We demonstrate that the true price–TOM relationship should be nonlinear and characterized by an inverted U-shaped curve wherein the selling price increases with TOM up to a certain threshold, reflective of a positive exposure effect and decreases thereafter to reflect a negative stigma effect. This relationship is borne out in an empirical analysis using a large sample of home sales from the Hampton Roads, Virginia metropolitan area during an extended period of time. We then formulate hypotheses about the benefit of search by home sellers, which are subsequently confirmed by the empirical findings.
在房地产市场上,尽管进行了近40年的调查,并对各种数据来源进行了数百次回归,但房产售价与上市时间之间关系的本质至今仍是一个悬而未决的问题。本研究试图通过从一个新的角度审视这个问题来解决这个长期悬而未决的问题。我们证明了真正的价格- TOM关系应该是非线性的,并具有倒u型曲线的特征,其中销售价格随着TOM上升到一定阈值,反映了正面的曝光效应,然后下降,反映了负面的污名效应。这种关系在一项实证分析中得到了证实,该分析使用了弗吉尼亚州汉普顿路大都市区在很长一段时间内的大量房屋销售样本。然后,我们提出了关于房屋卖家搜索的好处的假设,这些假设随后被实证结果证实。
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引用次数: 18
Affirmative Action, Mismatch, and Economic Mobility after California's Proposition 209 加州209号提案后的平权行动、错配与经济流动性
Pub Date : 2020-08-20 DOI: 10.2139/ssrn.3484530
Zachary Bleemer
Proposition 209 banned race-based affirmative action at California public universities in 1998. This study analyzes Prop 209's impact on student outcomes using a difference-in-difference research design and a newly-constructed longitudinal database linking all 1994-2002 University of California applicants to their college enrollment, course performance, major choice, degree attainment, and wages into their mid-30s. Ending affirmative action caused UC's 10,000 annual underrepresented minority (URM) freshman applicants to cascade into lower-quality public and private universities. URM applicants' undergraduate and graduate degree attainment declined overall and in STEM fields, especially among lower-testing applicants. As a result, the average URM UC applicant's wages declined by 5 percent annually between ages 24 and 34, almost wholly driven by declines among Hispanic applicants. By the mid-2010s, Prop 209 had caused a cumulative decline in the number of early-career URM Californians earning over $100,000 by at least 3 percent. Prop 209 also deterred thousands of qualified URM students from applying to any UC campus. Enrolling at less-selective UC campuses did not improve URM students' performance or persistence in STEM course sequences. Complementary regression discontinuity and institutional value-added analyses suggest that affirmative action's net wage benefits for URM applicants exceed its (potentially small) net costs for on-the-margin white and Asian applicants. These findings are inconsistent with the university "Mismatch Hypothesis" and provide the first causal evidence that banning affirmative action exacerbates socioeconomic inequities.
1998年,第209号提案禁止了加州公立大学基于种族的平权行动。本研究采用差异中差异研究设计和新建立的纵向数据库,分析了209号提案对学生成绩的影响,该数据库将所有1994-2002年加州大学的申请人与他们的大学入学情况、课程表现、专业选择、学位获得情况和35岁左右的工资联系起来。取消平权法案导致加州大学每年有1万名未被充分代表的少数族裔(URM)新生申请者涌向质量较低的公立和私立大学。URM申请人的本科和研究生学位成绩总体下降,在STEM领域,尤其是在考试成绩较低的申请人中。结果,在24岁到34岁之间,URM加州大学申请人的平均工资每年下降5%,几乎完全是由西班牙裔申请人的下降造成的。到2010年代中期,209号提案导致收入超过10万美元的早期加州URM人数累计下降至少3%。209号提案还阻止了数千名符合条件的加州大学欧文分校学生申请加州大学任何分校。入读不那么挑剔的加州大学校园并没有提高URM学生在STEM课程中的表现或坚持度。互补回归不连续和制度增值分析表明,平权行动对URM申请人的净工资福利,超过了对边缘白人和亚裔申请人的净成本(可能很小)。这些发现与大学的“错配假说”不一致,并提供了禁止平权行动加剧社会经济不平等的第一个因果证据。
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引用次数: 34
The (Non-)Effect of Opportunity Zones on Housing Prices 机会区对房价的(非)影响
Pub Date : 2020-07-31 DOI: 10.2139/ssrn.3664961
Jiafeng Chen, E. Glaeser, David Wessel
Will the Opportunity Zone program, America’s largest new place-based policy in decades, generate neighborhood change? We compare single-family housing price growth in Opportunity Zones with price growth in areas that were eligible but not included in the program. We also compare Opportunity Zones to their nearest geographic neighbors. All estimates rule out price impacts greater than 1.5 percentage points with 95% confidence, suggesting that, so far, home buyers don’t believe that this subsidy will generate major neighborhood change. Opportunity Zone status reduces prices in areas with little employment, perhaps because buyers think that subsidizing new investment will increase housing supply.
机会区计划是美国几十年来最大的以地方为基础的新政策,它会给社区带来改变吗?我们比较了机会区的单户住宅价格增长与符合条件但不包括在该计划中的地区的价格增长。我们还将机会区与其最近的地理邻居进行比较。所有的估计都以95%的置信度排除了超过1.5个百分点的价格影响,这表明,到目前为止,购房者不相信这项补贴会给社区带来重大变化。机会区地位降低了就业机会少的地区的房价,也许是因为买家认为补贴新投资将增加住房供应。
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引用次数: 0
Examining Certificate-of-Need Laws in the Context of the Rural Health Crisis 在农村卫生危机背景下审查需要证明法
Pub Date : 2020-07-29 DOI: 10.2139/ssrn.3667311
Thomas Stratmann, Matthew C. Baker
To evaluate certificate-of-need (CON) laws in rural areas and their relationship with selected healthcare outcomes and with common measures of potentially avoidable spending, we regress county-level Medicare data and state-level all-patient spending and utilization data to compare healthcare outcomes and common measures of wasteful spending in rural states with and without CON laws. Results show that patients residing in counties restricted by CON laws spend more per Medicare beneficiary and have higher utilization rates in ambulance services, emergency departments, and readmissions, both before and after controlling for social risk factors such as race, education, and poverty status. These findings imply that policies countering CON restrictions may reverse the outcome gap for rural states in access to care, which in turn may reduce wasteful spending and utilization.
为了评估农村地区的需求证明(CON)法律及其与选定医疗保健结果和潜在可避免支出的共同措施之间的关系,我们回归了县级医疗保险数据和州级所有患者支出和利用数据,以比较有和没有CON法律的农村州的医疗保健结果和浪费支出的共同措施。结果表明,在控制种族、教育和贫困状况等社会风险因素之前和之后,居住在受CON法律限制的县的患者人均医疗保险受益人花费更高,在救护车服务、急诊和再入院方面的使用率更高。这些发现表明,对抗CON限制的政策可能会扭转农村各州在获得医疗服务方面的差距,从而减少浪费的支出和利用。
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引用次数: 1
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Econometric Modeling: Microeconometric Studies of Health
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