The Bank Capital Channel of Monetary Policy
AbstractThis paper examines the role of bank lending in the transmission of monetary policy in the presence of capital adequacy regulations. I develop a dynamic model of bank asset and liability management that incorporates risk-based capital requirements and an imperfect market for bank equity. These conditions imply a failure of the Modigliani-Miller theorem for the bank: its lending will depend on the bankâ€™s financial structure, as well as on lending opportunities and market interest rates. Combined with a maturity mismatch on the bankâ€™s balance sheet, this gives rise to a â€˜bank capital channelâ€™ by which monetary policy affects bank lending through its impact on bank equity capital. This mechanism does not rely on any particular role of bank reserves and thus falls outside the conventional â€˜bank lending channelâ€™. I analyze the dynamics of the new channel. An important result is that monetary policy effects on bank lending depend on the capital adequacy of the banking sector; lending by banks with low capital has a delayed and then amplified reaction to interest rate shocks, relative to well-capitalized banks. Other implications are that bank capital affects lending even when the regulatory constraint is not momentarily binding, and that shocks to bank profits, such as loan defaults, can have a persistent impact on lending
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Bibliographic InfoPaper provided by Society for Economic Dynamics in its series 2006 Meeting Papers with number 512.
Date of creation: 03 Dec 2006
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Postal: Society for Economic Dynamics Christian Zimmermann Economic Research Federal Reserve Bank of St. Louis PO Box 442 St. Louis MO 63166-0442 USA
Web page: http://www.EconomicDynamics.org/society.htm
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Monetary Policy; Bank Capital; Capital Requirements; Bank Lending Channel;
Find related papers by JEL classification:
- E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
- E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
- G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
This paper has been announced in the following NEP Reports:
- NEP-ALL-2007-01-13 (All new papers)
- NEP-BAN-2007-01-13 (Banking)
- NEP-CBA-2007-01-13 (Central Banking)
- NEP-MAC-2007-01-13 (Macroeconomics)
- NEP-MON-2007-01-13 (Monetary Economics)
- NEP-REG-2007-01-13 (Regulation)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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NBER Working Papers
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- Mathias Dewatripont & Jean Tirole, 1994. "The prudential regulation of banks," ULB Institutional Repository 2013/9539, ULB -- Universite Libre de Bruxelles.
- Xavier Freixas & Jean-Charles Rochet, 1997. "Microeconomics of Banking," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262061937, January.
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