Discrimination with endogenous group choices . We investigate the possibility of discrimination based on whether a worker undertakes some seemingly irrelevant activity. We study a model in which workers choose group identities and make human capital investments. Firms compete for workers based...

In the first chapter, Legislative Bargaining and Coalition Formation, I analyze a widely used model of endogenous policy determination. The main question is if the stationary equilibrium, a popular equilibrium selection in applied work, can be rationalized as approximating the unique backwards...

We develop a model of trade between identical countries. Workers endogenously acquire skills that are imperfectly observed by firms, who therefore use aggregate country investment as the prior when evaluating workers. This creates an informational externality interacting with general equilibrium...

We provide strong evidence of advantageous selection in the Medigap insurance market, and analyze its sources. Using Medicare Current Beneficiary Survey (MCBS) data, we find that, conditional on controls for the price of Medigap, medical expenditures for senior citizens with Medigap coverage...