In this paper, we consider an environment in which agents’ skills are private information, are potentially multi-dimensional, and follow arbitrary stochastic processes. We allow for arbitrary incentive-compatible and physically feasible tax schemes. We prove that it is typically Pareto optimal...

We generalize the Diamond-Mirrlees production efficiency theorem, that there should be no taxes on sectors producing pure intermediate goods, to an environment with political economy constraints. In our economy, allocations and taxation are decided by self-interested politicians without the...

This paper studies a Diamond-Dybvig model of providing insurance against unobservable liquidity shocks in the presence of unobservable trades. We show that competitive equilibria are inefficient. A social planner finds it beneficial to introduce a wedge between the interest rate implicit in...