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作者：Posch, Max; Schulz, Jonathan; Henrich, Joseph
作者单位：University of Exeter; George Mason University; Harvard University
摘要：This paper examines the impact of cultural diversity on innovation. Focusing on the United States from 1850 to 1940, we develop a novel surname-based measure of cultural diversity and combine this with patent data. Leveraging quasi-random variation in counties' surname compositions driven by historical immigration, we find that rising diversity increased both the quantity and the quality of innovation within counties and for individual inventors. Examining mechanisms, we provide evidence sugge...
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作者：Fogli, Alessandra; Guerrieri, Veronica; Ponder, Mark; Prato, Marta
作者单位：Federal Reserve System - USA; University of Chicago; Bocconi University
摘要：Since the 1980s, the United States has experienced both an increase in income inequality and a rise in residential segregation by income. We develop a general equilibrium model with residential choice, where segregation and inequality amplify each other because of a local spillover affecting educational returns. We calibrate the model to a representative US metro in 1980 and use the micro estimates of neighborhood exposure effects in Chetty and Hendren (2018b) to discipline the spillover. We t...
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作者：Bailey, Michael; Johnston, Drew; Koenen, Martin; Kuchler, Theresa; Russel, Dominic; Stroebel, Johannes
作者单位：Harvard University; New York University; National Bureau of Economic Research; Centre for Economic Policy Research - UK; Leibniz Association; Ifo Institut
摘要：We use Facebook data to study Syrian migrants' social integration in Germany, establishing five findings: (1) Migrants' social integration varies across regions, driven by causal, place-based effects. (2) This spatial variation reflects how frequently Germans befriend neighbors and how likely they are to befriend migrants versus other Germans. Using a mover's design, we show that both factors are shaped more by local institutions and policies than by persistent native characteristics. (3) Inte...
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作者：Deb, Rahul; Pai, Mallesh M.; Said, Maher
作者单位：Boston College; Rice University; New York University
摘要：We provide an organizational economics foundation for commitment to information structures in persuasion. An uninformed principal faces a joint screening-and-persuasion problem: she wants to influence a receiver's belief about a payoff-relevant state using information elicited from a privately informed agent. The agent's messages are publicly observed, so the principal cannot commit to a garbling of private communications. We show that commitment only to an employment contract with the agent p...
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作者：Dominguez-Iino, Tomas
作者单位：University of Chicago
摘要：I build an empirical model of the South American agricultural sector to show how environmental policy is transmitted along a supply chain when regulation at the externality's source is infeasible. Given obstacles to a first-best carbon tax on farmers, I show how second-best alternatives-downstream agribusiness taxes-reduce upstream emissions, but their effectiveness is limited by poor targeting while also being regressive. Agribusiness monopsony power worsens targeting by lowering pass-through...
