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作者：Korovkin, Vasily; Makarin, Alexey
作者单位：Czech Academy of Sciences; Economics Institute of the Czech Academy of Sciences; Charles University Prague; Massachusetts Institute of Technology (MIT)
摘要：Does armed conflict reduce trade, even in noncombat areas, through the destruction of intergroup social capital? We analyze Ukrainian trade transactions before and after the 2014 Russia-Ukraine con-flict. In a difference-in-differences framework, we find that Ukrainian firms from districts with fewer ethnic Russians experienced a deeper decline in trade with Russia. This decline is economically signifi-cant, persistent, and can be explained by erosion of intergroup trust. Affected Ukrainian fi...
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作者：Wolitzky, Alexander
作者单位：Massachusetts Institute of Technology (MIT)
摘要：I study ultimatum bargaining with imperfectly observed offers. Imperfectly observed offers must be rejected with positive proba-bility, even when the players' preferences are common knowledge. Noisier observations imply a greater risk of rejection. In repeated ultimatum bargaining, the responding party can obtain a positive payoff if his signal of the opponent's offer is also observed by the opponent herself, but not if his signal is private. In alternating-offers bargaining, a player is bette...
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作者：East, Chloe N.; Miller, Sarah; Page, Marianne; Wherry, Laura R.
作者单位：University of Colorado System; University of Colorado Denver; University of Michigan System; University of Michigan; University of California System; University of California Davis; New York University
摘要：We examine multigenerational impacts of positive in utero health interventions using a new research design that exploits sharp increases in prenatal Medicaid eligibility that occurred in some states. Our analyses are based on US Vital Statistics natality files, which enables linkages between individuals' early life Medicaid exposure and the next generation's health at birth. We find evidence that the health benefits associated with treated generations' early life program exposure extend to lat...
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作者：Frandsen, Brigham; Lefgren, Lars; Leslie, Emily
作者单位：Brigham Young University
摘要：We propose a nonparametric test for the exclusion and monotonicity assumptions invoked in instrumental variable (IV) designs based on the random assignment of cases to judges. We show its asymptotic validity and demonstrate its finite-sample performance in simula-tions. We apply our test in an empirical setting from the literature examining the effects of pretrial detention on defendant outcomes in New York. When the assumptions are not satisfied, we propose weaker versions of the usual exclus...
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作者：Janssen, Aljoscha; Zhang, Xuan
作者单位：Singapore Management University
摘要：This study investigates the role of retail pharmacy ownership in the opioid epidemic. Using data of prescription opioid orders, we show that compared with chain pharmacies, independent pharmacies dis-pense 39.1 percent more opioids and 60.5 percent more OxyContin. After an independent pharmacy becomes a chain pharmacy, opioid dispensing decreases. Using the OxyContin reformulation, which reduced nonmedical demand but not the legitimate medical demand, we show that at least one-third of the dif...
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作者：Currie, Janet; Voorheis, John; Walker, Reed
作者单位：Princeton University; University of California System; University of California Berkeley
摘要：This project links administrative census microdata to spatially continuous measures of particulate pollution (PM2.5) to first doc-ument and then decompose the key drivers of convergence in black -white pollution exposure differences. We use quantile regression to show that a significant portion of the convergence in Black-White exposure is attributable to differential impacts of the Clean Air Act (CAA) in Black and White communities. Areas with larger Black populations saw greater CAA-related ...
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作者：Onuchic, Paula; Ray, Debraj
作者单位：University of Oxford; New York University; University of Warwick
摘要：We study collaborative work in pairs when potential collaborators are motivated by the reputational implications of (joint or solo) proj-ects. In equilibrium, individual collaboration strategies both influ-ence and are influenced by the public assignment of credit for joint work across the two partners. We investigate the fragility of collabo-ration to small biases in the public's credit assignment. When collab-orators are symmetric, symmetric equilibria are often fragile, and in nonfragile eq...
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作者：Bombardini, Matilde; LI, Bingjing; Trebbi, Francesco
作者单位：University of California System; University of California Berkeley
摘要：Information sets, expectations, and preferences of politicians are fundamental, but unobserved determinants of their policy choices. Employing repeated votes in the US House of Representatives on China's normal trade relations (NTR) status during the two decades straddling China's World Trade Organization (WTO) accession, we apply a moment inequality approach designed to deliver consistent estimates under weak informational assumptions on the information sets of members of Congress. This metho...
