Random matching models with di erent states are an important class of dynamic games; for example, money search models, job search models, and some games in biology are special cases. In this paper, we investigate the basic structure of the models: the existence of equilibria, the global...

This paper develops a new technique for proving the existence of monetary equilibria in money search models. In money search models with divisible money, the set of equilibria, if it exists, is at least one-dimensional. We develop a method to prove the existence of such a set in a fairly simple...

A conventional wisdom in economics is that a model dealing frictionless markets with a large number of agents always yields a Walrasian outcome. In this paper we assess the above argument in a dynamic framework by modeling centralized auction markets, and show that in such markets the outcomes...

In this paper, we investigate equilibrium cycles in dynamic general equilibrium models with cash-in-advance constraints. Our findings are two-fold. First, in such models, if an equilibrium cycle exists, then there also exists a continuum of equilibrium cycles in its neighborhood. Second, the...

In this paper, we investigate equilibrium cycles in dynamic general equilibrium models with cash-in-advance constraints. Our findings are two-fold. First, in such models, if an equilibrium cycle exists, then there also exists a continuum of equilibrium cycles in its neighborhood. Second, the...

In this paper, it is shown that real indeterminacy of stationary equilibria generically arises in most matching models with perfectly divisible media of exchange. In other words, the real indeterminacy follows from the condition for stationarity of holdings of media of exchange. Moreover, we...