Knowledge that Transforms

This paper considers the maturity intermediation and intertemporal lending decisions of risk-averse financial intermediaries. In particular, the maturity mismatch problem and the fixed-versus-variable-rate lending decision are modeled when the major source of risk involves uncertain future interest rates. The results imply that the strategy of matching the maturity of assets and liabilities is not generally optimal or even minimum risk. This is due primarily to the “built-in” hedge that the intermediary has as a result of rolling over short-term loans while continuing to finance long-term loans. Intertemporal dependencies between loan demand and costs (or both) also have an effect on the optimal degree of maturity mismatching and provide one rationale for making loans at rates below current marginal cost.

Robert A. Eisenbeis, Credit Granting: A Comparative Analysis of Classification Procedures: Discussion, The Journal of Finance, Vol. 42, No. 3, Papers and Proceedings of the Forty-Fifth Annual Meeting of the American Finance Association, New Orleans, Louisiana, December 28-30, 1986 (Jul., 1987), pp. 681-683

This paper studies the impact that margin requirements have on both the existence of arbitrage opportunities and the valuation of call options. In the context of the Black-Scholes economy, margin restrictions are shown to exclude continuous-trading arbitrage opportunities and, with two additional hypotheses, still to allow the Black-Scholes call model to apply. The Black-Scholes economy consists of a continuously traded stock with a price process that follows a geometric Brownian motion and a continuously traded bond with a price process that is deterministic.