We analyze the role of optimal income taxation across different local labor markets. Should labor in large cities be taxed differently than in small cities? We find that a planner who needs to raise revenue and is constrained by free mobility of labor across cities does not choose equal taxes...

We investigate how adverse selection in the used capital market generates procyclical sales of used capital -- capital reallocation. In our model, adverse selection produces a resale discount for used capital. In equilibrium, this endogenous partial irreversibility is more severe in recessions...