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Capital Adequacy and the Bank Lending Channel: Macroeconomic Implications

  • Shaw, Ming-fu
  • Chang, Juin-jen
  • Chen, Hung-Ju

This paper develops an analytically tractable dynamic general-equilibrium model with a banking system to examine the macroeconomic implications of capital adequacy requirements. In contrast to the hypothesis of a credit crunch, we find that increasing the strength of bank capital requirements does not necessarily reduce the equilibrium quantity of loans, provided that banks have the option to respond to the capital requirements by accumulating more equity instead of cutting back on lending. Accordingly, we show that there is an inverted-U-shaped relationship between CAR and capital accumulation (and consumption). Furthermore, the optimal capital adequacy ratio for social-welfare maximization is lower than that for capital-accumulation maximization. In accordance with general empirical findings, the capital- accumulation maximizing capital adequacy ratio is procyclical with respect to economic conditions. We also find that monetary policy affects the real macroeconomic activities via the so-called bank lending channel, but the effectiveness of monetary policy is weakened by bank capital requirements.

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 41056.

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Date of creation: 05 Sep 2012
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Handle: RePEc:pra:mprapa:41056
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  1. Peek, Joe & Rosengren, Eric, 1995. "The Capital Crunch: Neither a Borrower nor a Lender Be," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 27(3), pages 625-38, August.
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  3. Claudio E. V. Borio, 2003. "Towards a macroprudential framework for financial supervision and regulation?," BIS Working Papers 128, Bank for International Settlements.
  4. Skander Van den Heuvel, 2005. "The Welfare Cost of Bank Capital Requirements," 2005 Meeting Papers 880, Society for Economic Dynamics.
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  6. Kopecky, Kenneth J. & VanHoose, David, 2006. "Capital regulation, heterogeneous monitoring costs, and aggregate loan quality," Journal of Banking & Finance, Elsevier, vol. 30(8), pages 2235-2255, August.
  7. Turnovsky, S.J., 1989. "The Effects Of Taxes And Devidend Policy On Capital Accumulation And Macroeconomic Behavior," Discussion Papers in Economics at the University of Washington 891101, Department of Economics at the University of Washington.
  8. Stephen G. Cecchetti & Lianfi Li, 2005. "Do Capital Adequacy Requirements Matter for Monetary Policy?," NBER Working Papers 11830, National Bureau of Economic Research, Inc.
  9. Peek, Joe & Rosengren, Eric, 1995. "Bank regulation and the credit crunch," Journal of Banking & Finance, Elsevier, vol. 19(3-4), pages 679-692, June.
  10. Allen Berger & Gregory Udell, 1994. "Did Risk-Based Capital Allocate Bank Credit and Cause a `Credit Crunch' in the U.S.?," Center for Financial Institutions Working Papers 94-07, Wharton School Center for Financial Institutions, University of Pennsylvania.
  11. Kopecky, Kenneth J. & VanHoose, David, 2004. "A model of the monetary sector with and without binding capital requirements," Journal of Banking & Finance, Elsevier, vol. 28(3), pages 633-646, March.
  12. Elyasiani, Elyas & Kopecky, Kenneth J & VanHoose, David, 1995. "Costs of Adjustment, Portfolio Separation, and the Dynamic Behavior of Bank Loans and Deposits," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 27(4), pages 955-74, November.
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  15. David VanHoose, 2006. "Bank Behavior Under Capital Regulation: What Does The Academic Literature Tell Us?," NFI Working Papers 2006-WP-04, Indiana State University, Scott College of Business, Networks Financial Institute.
  16. Blum, Jurg & Hellwig, Martin, 1995. "The macroeconomic implications of capital adequacy requirements for banks," European Economic Review, Elsevier, vol. 39(3-4), pages 739-749, April.
  17. Maximilian J.B Hall, 2002. "Banking Regulation and Supervision in Japan," FMG Special Papers sp139, Financial Markets Group.
  18. Santomero, Anthony M & Watson, Ronald D, 1977. "Determining an Optimal Capital Standard for the Banking Industry," Journal of Finance, American Finance Association, vol. 32(4), pages 1267-82, September.
  19. Xavier Freixas & Jean-Charles Rochet, 1997. "Microeconomics of Banking," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262061937, June.
  20. Ben S. Bernanke & Cara S. Lown, 1991. "The Credit Crunch," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 22(2), pages 205-248.
  21. King, Robert G. & Levine, Ross, 1993. "Finance, entrepreneurship and growth: Theory and evidence," Journal of Monetary Economics, Elsevier, vol. 32(3), pages 513-542, December.
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  23. Keeley, Michael C. & Furlong, Frederick T., 1990. "A reexamination of mean-variance analysis of bank capital regulation," Journal of Banking & Finance, Elsevier, vol. 14(1), pages 69-84, March.
  24. Kopecky, Kenneth J. & VanHoose, David, 2004. "Bank capital requirements and the monetary transmission mechanism," Journal of Macroeconomics, Elsevier, vol. 26(3), pages 443-464, September.
  25. Mathias Dewatripont & Jean Tirole, 1994. "The prudential regulation of banks," ULB Institutional Repository 2013/9539, ULB -- Universite Libre de Bruxelles.
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