A Dynamic Theory of the Banking Firm
构建了一个整合银行经纪与风险转换双重角色的动态模型，强调资本在破产风险中的作用，弥补了单期分析无法捕捉银行随时间处理风险的不足。
ABSTRACT Dynamic analysis has greatly increased our understanding of the microfoundations of the general firm. Unfortunately, however, little attention has been focussed on the dynamic nature of the banking firm. Instead, most theoretical work has derived the optimal behavior for the bank in a single period context. This approach, while yielding insight into the function of the bank as a broker between borrowers and lenders, has proven incapable of capturing many essential elements of the banking firm. The role of capital, for example, is understated if the risk of bankruptcy is not considered. Perhaps more importantly, the role of banks in transforming risks in an uncertain environment cannot be captured if the problem of handling these risks over time is not considered. This paper incorporates these dual roles of brokerage and risk transformation in a cohesive model of the banking firm.