Hwang's paper, "A General Equilibrium Analysis of Immigrants’ Neighborhood Sorting and Social Integration," examines how immigrants culturally assimilate and how people change prejudice against immigrants. The first chapter builds a structural model to explain the dynamics of cultural assimilation and prejudice change. The main mechanism is through endogenous social group formation. Neighborhoods are used as measurements for social groups. Immigrants who segregate into ethnic enclaves have limited interactions with natives so they have less incentive to adopt natives’ cultural traits. Natives who rarely meet immigrants will have less chance to change their prejudice against immigrants. The second chapter presents detailed identification results and Monte Carlo evidence. The third chapter points out that cultural assimilation and economic assimilation are theoretically equivalent and therefore must be studied in a single framework. When the dynamics of cultural and economic assimilation highly depends on each other, perfect assimilation in one dimension must imply perfect assimilation in another.

Hwang will become a Postdoctoral Fellow at the University of Geneva in the fall of 2019, and an Assistant Professor in Economics at Johns Hopkins University from Spring 2020. She received her Ph.D in Economics from Yale University in 2019.

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