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Economic Review

May/Jun, 1988

Financial Deregulation, Monetary Policy, and Central Banking

Marvin Goodfriend and Robert G. King

The paper analyzes the need for financial regulations in the implementation of central bank policy. It emphasizes that a central bank serves two functions. Central banks function as monetary authorities, managing high-powered money to influence the price level and real activity; and they engage in regular and emergency lending to financial institutions. The authors term these functions monetary and banking policies, respectively. They emphasize that regulations are not essential for the execution of monetary policy because high-powered money can be managed with open market operations in government bonds. By its very nature, however, banking policy involves a swap of government securities for claims on individual banks. Just as private lenders must restrict and monitor individual borrowers, a central bank must regulate and supervise the institutions that borrow from it. Virtually all economists agree that there is an important role for monetary policy to stabilize prices and real activity. Banking policy has been rationalized as a source of funds for temporarily illiquid but solvent banks. To assess that rationale, the authors develop the distinction between illiquidity and insolvency in detail, showing the distinction to be meaningful precisely because information about the value of bank assets is incomplete and costly to obtain. Nevertheless, they explain why the cost of information per se cannot rationalize banking policy. On the basis of such considerations, they find it difficult to make a case for banking policy and the regulatory and supervisory activities that support it.

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