The objective of this paper is to study optimal fiscal and monetary policy in a dynamic Mirrlees model where the frictions giving rise to money as a medium of exchange are explicitly modeled. The framework is a three period OLG model where agents are born every other period. The young and old...

During long periods of history, countries have pegged their currencies to an international standard (such as gold or the U.S. dollar), severely restricting their ability to create money and affect output, prices, or government revenue. Nevertheless, countries generally have maintained their own...

I extend and discuss the model of asset liquidity by Lester, Postlewaite, and Wright (2007, 2008). I consider a model with decentralized trades in which claims on a real and divisible asset serve as means of payment. A recognizability problem is introduced by assuming that the claims on the...

This paper develops a model of currency circulation under asymmetric information. Agents are heterogeneous and trade in bilateral matches. Coins are intrinsically valuable and are available in two weights, light and heavy. We characterize the equilibrium under complete information and under...

The objective of this note is to analyze some implications of the model of commodity money described in Banerjee and Maskin (1996) which may seem paradoxical. In order to do this, we incorporate a general production cost structure into the model. We focus on two different results. First, the...

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 article analyzes the work of the late Dr. William Vickrey, the McVickar Professor Emeritus of Columbia University and 1996 Nobel-laureate in Economics. In choosing Vickrey for the Nobel prize, the Royal Swedish Academy of Sciences notes Vickrey's fundamental contributions to the economic...

We formalize a decentralized market where consumers with privately-known preferences meet bilaterally with firms. The latter acquire information to raise their degree of price discrimination from second to first. In a dynamic setting where outside options are endogenous, information choices are...

Monetary models overwhelmingly feature a particular asset, "money", as the medium of exchange in an economy. However, the adoption of a medium of exchange is endogenous and subject to changes if conditions favor a different asset. We study the liquidity role of a real asset that is subject to...