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作者：Domenech-Arumi, Gerard; Vannutelli, Silvia
作者单位：Universite Libre de Bruxelles; Northwestern University; National Bureau of Economic Research
摘要：wE exploit an unanticipated labor market reform to estimate the effects of procyclical changes in long-term unemployment assistance (UA). In July 2012, Spain raised the minimum age to receive unlimited- duration UA from 52 to 55. Using a difference-in-differences design, we document that shorter benefits caused (1) shorter unemployment duration, especially among younger workers; (2) higher labor force exit and other programs' take-up, especially among older workers; and (c) lower wages upon re...
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作者：Koh, Yumi; Li, Jing; Xu, Jianhuan
作者单位：University of Seoul; Singapore Management University
摘要：Using rapid expansion of the Beijing subway from 2000 to 2018, we analyze its impact on collaborative matches in innovations. We find that an hour reduction in travel time between a pair of locations in Beijing brought 14.85% to 37.69% increase in collaborated patents. Far-apart location pairs were more affected, and the local average causal response is approximately 34.92% to 82.29%. The effect is mainly driven by increased matches among highly productive innovators. The entry of new innovato...
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作者：Currie, Janet; Zhang, Jonathan
作者单位：Princeton University; Duke University; US Department of Veterans Affairs; Veterans Health Administration (VHA)
摘要：We use data from the Veterans Administration to examine the efficacy of primary care providers (PCPs). Leveraging quasi-random assignment of veterans to PCPs, we measure effectiveness using ambulatory care sensitive conditions (ACSC) and hospitalizations/emergency department (ED) visits for mental health or circulatory conditions. PCPs' variation along these dimensions predicts future outcomes. For example, a 1 standard deviation improvement in mental health effectiveness reduces patient risk ...
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作者：Hu, Yunyi; Yin, Haitao; Zhao, Li
作者单位：Southwestern University of Finance & Economics - China; Shanghai Jiao Tong University
摘要：This article quantifies the impact of the battery electric vehicle subsidy program in China. We build a structural model of dynamic demand and Bertrand Nash supply to study price elasticity and changes in production costs. The model highlights four channels through which the subsidy program impacts the market: temporal elasticity, in response to a current price change; intertemporal elasticity, in response to a future price change; and multiplication effects through peer and learning by doing....
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作者：Hudja, Stanton; Roberson, Brian; Rosokha, Yaroslav
作者单位：University of Toronto; Purdue University System; Purdue University
摘要：We investigate the role of performance feedback, in the form of a public leaderboard, in a sequential-sampling contest with costly observations. We show theoretically that for contests with a fixed ending date (i.e., finite horizon), providing public performance feedback may result in fewer expected observations and a lower expected value of the winning observation. We conduct a controlled laboratory experiment to test the theoretical predictions and find that the experimental results largely ...
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作者：Muralidharan, Karthik; Niehaus, Paul; Sukhtankar, Sandip
作者单位：National Bureau of Economic Research; University of California System; University of California San Diego; University of Virginia; National Bureau of Economic Research
摘要：We study the impact of reforms that introduced more stringent, biometric ID requirements into India's largest social protection program, using large-scale randomized and natural experiments. Corruption fell but with substantial costs to legitimate beneficiaries, 1.5-2 million of whom lost access to benefits at some point during the reforms. At the same time, adverse effects appear to have been driven primarily by decisions about the way the transition was managed, illustrating both the risks o...
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作者：Shi, Zhentao; Su, Liangjun; Xie, Tian
作者单位：University System of Georgia; Georgia Institute of Technology; Chinese University of Hong Kong; Tsinghua University; Shanghai University of Finance & Economics
摘要：We propose & ell;( 2)-relaxation, which is a novel convex optimization problem, to tackle a forecast combination with many forecasts or a minimum variance portfolio with many assets. & ell;( 2)-relaxation minimizes the squared Euclidean norm of the weight vector subject to a set of relaxed linear inequalities to balance the bias and variance. It delivers optimality with approximately equal within-group weights when latent block equicorrelation patterns dominate the high-dimensional sample vari...
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作者：Gilraine, Michael; Penney, Jeffrey
作者单位：Simon Fraser University; University of Alberta
摘要：An administrative rule in North Carolina allowed students who failed an exam to retake it approximately two weeks later, triggering a brief yet intense test preparation period. We develop a structural model that accounts for selection and find that these students score much higher on the retest. Using a regression discontinuity design, we find substantial fade-out of the test score gains after one year but some persistence thereafter. Unlike other interventions that produce similar initial inc...
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作者：Vihriaelae, Erkki
作者单位：Aalto University
摘要：I study how intra-household frictions and anchoring contribute to the credit card debt puzzle, the co-holding of high-cost debt, and low-yield liquid assets. First, I find couples co-hold 42% more as units than as individuals relative to income. Moreover, in a natural experiment, couples do not cooperate to reduce high-cost debt, suggesting that intra-household frictions contribute to co-holding. Second, I find individuals who regularly make credit card debt payments equal to or near the minim...
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作者：Fang, Hanming; Wang, Long; Yang, Yang
作者单位：University of Pennsylvania; National Bureau of Economic Research; Fudan University; Chinese University of Hong Kong
摘要：The entry of High-Speed Railways (HSR) represents disruptive competition to airlines. Utilizing a unique dataset of all flights departing from Beijing to 113 domestic destinations in China since January 2009, we employ a difference-in-differences approach to examine the effects of HSR entry on on-time performance and to identify the channels. We document two main findings. First, the entry of HSR leads to significant reductions in the mean and variance of travel delays on the affected airline ...
