We consider an overlapping generation framework with search and private information to study optimal taxation. Agents sequentially trade in markets that are characterized by different frictions and trading protocols. In frictional decentralized markets, agents receive shocks that determine if...

This paper studies optimal monetary and fiscal policies in an economy à la Lucas and Stokey (1983) and Lagos and Wright (2005) with multiple cash and credit goods. We show that optimal policies are in general time inconsistent due to insufficient number of instruments to influence future...

This paper studies implementation of the social optimum in a model of habit formation. We consider taxes that address inefciencies due to negative consumption externalities, imperfect competition, and self-control problems. Our contributions are to: i) account for producers market power; and ii)...