In this paper we develop a model of the banking firm that enables us to test for portfolio separation. Our theoretical model generalizes existing intertemporal adjustment-cost models by assuming that these costs coexist simultaneously on both sides of the bank's balance sheet. The optimal...

We examine the portfolio choice of banks in a micro-funded model of runs. To insure riskaverse investors against liquidity risk, competitive banks offer demand deposits. We use global games to link the probability of a bank run to the portfolio choice. Based upon interim information about risky...