In an economy where agents are characterized by different productivities (vertical types) and different abilities to move (horizontal types), we compare a unified nonlinear optimal taxation schedule with the equilibrium taxation schedule that would be chosen by two competing tax authorities if...

We study the dynamics of entry and exit based on firms' learning about their relative cost positions. Each firm's marginal cost of production is its own private information, thereby facing ex ante uncertainty about its cost position. The (inelastic) market demand can accommodate only a fraction...

"This paper studies optimal relational contracts in motivating workers in a market setting. We find that labor markets with higher turnover costs will use more subjective performance pay and less efficiency wages and that in those markets, the total wage payment is lower and the equilibrium...