The current paradigm of corporate governance theory suggests that the Japanese main bank system and the German universal bank system encourage socially optimal corporate decisionmaking. Unlike their Japanese and German counterparts, American banks are barred from taking an active role in corporate governance, both by laws restricting share ownership, and by legal rules which hold banks liable for exerting managerial control over borrowers. The debate among commentators has focused on whether the German and Japanese systems should be viewed as alternatives to the American model. In this article, Professors Macey and Miller challenge the current paradigm by demonstrating that powerful banks may prevent equity claimants from undertaking social...