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作者：Batista, Catia; Vicente, Pedro C.
作者单位：Universidade Nova de Lisboa; Universidade Nova de Lisboa
摘要：Rural areas in sub-Saharan Africa are typically underserved by financial services. Mobile money brings a substantial reduction in the transaction costs of remittances. We follow the introduction of mobile money for the first time in rural villages of Mozambique using a randomized field experiment. We find that mobile money increased migration out of these villages, where we observe lower agricultural activity and investment. At the same time, remittances received and welfare of rural household...
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作者：Curci, Federico; Masera, Federico
作者单位：CUNEF Universidad; University of New South Wales Sydney
摘要：In this paper we study the effect of violent crime on residential and firms location decisions and their implications for segregation in cities. We do so by proposing a new instrument to exogenously predict violent crime in city centers. We base our instrument on chemical and medical evidence that links local characteristics of the soil to lead poisoning and aggression. We show that the increase in violent crime between 1960 and 1990 due to lead poisoning moved almost 8 million people to the s...
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作者：Coury, Michael
作者单位：State University of New York (SUNY) System; University at Buffalo, SUNY
摘要：How does exposure to risk shape individual preferences foran expanded state? I examine this question in the context of climatechange-related risk. Using variation in California wildfire activity, I showneighborhoods experiencing large fires increase support by 0.8 percentagepoints for ballot initiatives which expand the size of government and by2.4 percentage points for ballot initiatives endorsed by pro-environmentinterest groups. The effect is stronger in Republican areas and is notdriven by...
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作者：Nielsen, Carsten S.; Sebald, Alexander C.; Sorensen, Peter N.
作者单位：University of Copenhagen; Copenhagen Business School
摘要：We construct and run an experiment to test the most basic choiceeffect predicted by salience theory. Subjects allocate wealth between arisky and a safe investment. While we vary an apparent payoff ratio to in-fluence salience, treatments have economically equivalent consequences.Most other theories of behavior then predict zero effect. Our experimen-tal findings are strongly consistent with the behavioral implication of acontinuous version of salience theory. We provide a novel structural es-t...
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作者：Brownback, Andy; Imas, Alex; Kuhn, Michael A.
作者单位：University of Arkansas System; University of Arkansas Fayetteville; University of Chicago; University of Oregon
摘要：We conduct a field experiment with low-income shoppers to study how behavioral interventions can improve the effectiveness of healthy food subsidies. Our unique design enables us to deliver subsidies both before and during grocery shopping. We examine the effects of two nonrestrictive changes to the choice environment: giving shoppers agency over the subsidy they receive and introducing a waiting period before a subsidized shopping trip to prompt deliberation about upcoming purchases. These in...
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作者：Callaway, Brantly; Li, Tong
作者单位：University System of Georgia; University of Georgia; Vanderbilt University
摘要：During the early part of the COVID-19 pandemic, national andlocal governments introduced a number of policies to combat the spread ofCOVID-19. In this paper, we propose a new approach to bound the effectsof such early-pandemic policies on COVID-19 cases and other outcomeswhile dealing with complications arising from (i) limited availability ofCOVID-19 tests, (ii) differential availability of COVID-19 tests acrosslocations, and (iii) eligibility requirements for individuals to be tested. Weuse ...
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作者：Park, Sangyoon; Yuan, Zhaoneng; Zhang, Hongsong
作者单位：University of Hong Kong
摘要：This paper examines the impacts of technology training and buyer-supplier relationship on technology adoption and quality upgrading. We randomly varied subjects of each training group across farmer-exporter clusters-farmers, exporters, both, or none-and provided training on Good Agricultural Practices (GAP). We find that training farmers enhances technology adoption and quality upgrading. Yet, the effects are much stronger when farmers and exporters are trained together. We document a plausibl...
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作者：Camboni, Riccardo; Corazzini, Luca; Galavotti, Stefano; Valbonesi, Paola
作者单位：University of Padua; University of Milano-Bicocca; Masaryk University; Universita degli Studi di Bari Aldo Moro
摘要：We experimentally study procurement auctions when both quality and price matter. We compare two treatments where sellers compete on one dimension only (price or quality), with three treatments where sellers submit a price-quality bid and the winner is determined by a scoring rule that combines the two offers. We find that, in the scoring rule treatments, efficiency and buyer's utility are lower than predicted. Estimates from a Quantal Response Equilibrium model suggest that increasing the dime...
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作者：Bulte, Erwin; Di Falco, Savatore; Kassie, Menale; Vollenweider, Xavier
作者单位：Wageningen University & Research; University of Geneva; International Centre of Insect Physiology & Ecology (ICIPE)
摘要：Low productivity in agriculture is a major cause of povertyand food insecurity in Africa. One explanation for low productivity is thewidespread presence of low-quality inputs on local markets (lemon tech-nologies), which causes uncertainty among farmers and erodes incentivesfor adoption. We report the results from a field experiment in Tanzania tostudy the impact of improved maize seeds in a context where we exoge-nously vary seed quality and uncertainty about seed type. The analysis isat the ...
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作者：Teso, Edoardo
作者单位：Northwestern University; Bocconi University; National Bureau of Economic Research; Centre for Economic Policy Research - UK
摘要：I leverage a new panel on the contributions to members of the U.S. Congress (MCs) from 401,557 corporate leaders of 14,807 U.S. corporations over 1999-2018 to show that U.S. corporate elites use contributions to political campaigns as a tool of political influence. Donations increase by 11% when a politician is assigned to a committee dealing with policy issues relevant to a corporate leader's company. The effect is driven by donations to MCs with the greatest power in the committees. I estima...
