This paper studies the long run effects of monetary policy in a micro-founded model with trading frictions and endogenous market segmentation. Agents must pay a fixed cost to participate in a centralized liquidity market. By endogenizing the participation decision, this model endogenizes the...

We use a modified version of the Lagos-Wright model to introduce an essential role for banks. Due to preference shocks, agents have excess demand for or supply of money balances. Banks arise to reallocate excess cash by taking deposits from sellers and making loans to buyers. We consider two...