Financial Intermediary Capital

We propose a dynamic theory of financial intermediaries as collateralization specialists that are better able to collateralize claims than households. Intermediaries require capital as they can borrow against their loans only to the extent that households themselves can collateralize the assets backing the loans. The net worth of financial intermediaries and the corporate sector are both state variables affecting the spread between intermediated and direct finance and the dynamics of real economic activity, such as investment, and financing. The accumulation of net worth of intermediaries is slow relative to that of the corporate sector. A credit crunch has persistent real effects and can result in a delayed or stalled recovery. We provide sufficient conditions for the comovement of the marginal value of firm and intermediary capital.