In this paper we study the inefficiencies of the monetary equilibrium and optimal monetary policies in a search economy. We show that the same frictions that give fiat money a positive value generate an inefficient quantity of goods in each trade and an inefficient number of trades (or search...

This paper adopts mechanism design to tackle the central issue in monetary theory, namely, the coexistence of money and higher-return assets. I describe an economy with pairwise meetings, where fiat money and risk-free capital compete as means of payment. Whenever fiat money has an essential...

On November 14-15, 2008, the Federal Reserve Bank of Cleveland hosted a conference on "Liquidity in Frictional Asset Markets." In this paper we review the literature on asset markets with trading frictions in both finance and monetary theory using a simple search-theoretic model, and we discuss...

I apply mechanism design to quantify the cost of inflation that can be attributed to monetary frictions alone. In an environment with pairwise meetings, the money demand that is consistent with a constrained-efficient allocation takes the form of a continuous correspondence that can fit the data...

We study economies with an essential role for liquid assets in transactions. The model can generate multiple stationary equilibria, across which asset prices, market participation, capitalization, output and welfare are positively related. It can also generate a variety of nonstationary...

I study random-matching economies where at money coexists with real assets, and no restrictions are imposed on payment arrangements. I emphasize informational asymmetries about asset fundamentals to explain the partial illiquidity of real assets and the usefulness of at money. The liquidity of...

Search models of monetary exchange have typically relied on Nash (1950) bargaining or strategic games that yield an equivalent outcome to determine the terms of trade. By considering alternative axiomatic bargaining solutions in a simple search model with divisible money, we show how this choice...

We study general equilibrium with nonconvexities. In these economies there exist sunspot equilibria without the usual assumptions needed in convex economies, and they have good welfare properties. Moreover, in these equilibria, agents act as if they have quasi-linear utility. Hence wealth...

We investigate how trading frictions in asset markets affect portfolio choices, asset prices and efficiency. We generalize the search-theoretic model of financial intermediation of Duffie, Gacirc;rleanu and Pedersen (2005) to allow for more general preferences and idiosyncratic shock structure,...