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Cyclical Adjustment of Capital Requirements. A Simple Framework

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  • Rafael Repullo

    () (CEMFI, Centro de Estudios Monetarios y Financieros)

Abstract

We present a simple model of an economy with heterogeneous banks that may be funded with uninsured deposits and equity capital. Capital serves to ameliorate a moral hazard problem in the choice of risk. There is a fixed aggregate supply of bank capital, so the cost of capital is endogenous. A regulator sets risk-sensitive capital requirements in order to maximize a social welfare function that incorporates a social cost of bank failure. We consider the effect of a negative shock to the supply of bank capital and show that optimal capital requirements should be lowered. Failure to do so would keep banks safer but produce a large reduction in aggregate investment. The result provides a rationale for the cyclical adjustment of risk-sensitive capital requirements.

Suggested Citation

  • Rafael Repullo, 2012. "Cyclical Adjustment of Capital Requirements. A Simple Framework," Working Papers wp2012_1205, CEMFI.
  • Handle: RePEc:cmf:wpaper:wp2012_1205
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    References listed on IDEAS

    as
    1. Rafael Repullo & Jesús Saurina & Carlos Trucharte, 2010. "Mitigating the pro-cyclicality of Basel II," Economic Policy, CEPR;CES;MSH, vol. 25, pages 659-702, October.
    2. Bengt Holmstrom & Jean Tirole, 1997. "Financial Intermediation, Loanable Funds, and The Real Sector," The Quarterly Journal of Economics, Oxford University Press, vol. 112(3), pages 663-691.
    3. Gordy, Michael B. & Howells, Bradley, 2006. "Procyclicality in Basel II: Can we treat the disease without killing the patient?," Journal of Financial Intermediation, Elsevier, vol. 15(3), pages 395-417, July.
    4. Gertler, Mark & Kiyotaki, Nobuhiro, 2010. "Financial Intermediation and Credit Policy in Business Cycle Analysis," Handbook of Monetary Economics,in: Benjamin M. Friedman & Michael Woodford (ed.), Handbook of Monetary Economics, edition 1, volume 3, chapter 11, pages 547-599 Elsevier.
    5. Rafael Repullo, 2005. "Liquidity, Risk Taking, and the Lender of Last Resort," International Journal of Central Banking, International Journal of Central Banking, vol. 1(2), September.
    6. Anil K. Kashyap & Jeremy C. Stein, 2004. "Cyclical implications of the Basel II capital standards," Economic Perspectives, Federal Reserve Bank of Chicago, issue Q I, pages 18-31.
    7. Repullo, Rafael & Suarez, Javier, 2004. "Loan pricing under Basel capital requirements," Journal of Financial Intermediation, Elsevier, vol. 13(4), pages 496-521, October.
    8. repec:hrv:faseco:33077921 is not listed on IDEAS
    9. Rafael Repullo & Javier Suarez, 2013. "The Procyclical Effects of Bank Capital Regulation," Review of Financial Studies, Society for Financial Studies, vol. 26(2), pages 452-490.
    10. Samuel G. Hanson & Anil K. Kashyap & Jeremy C. Stein, 2011. "A Macroprudential Approach to Financial Regulation," Journal of Economic Perspectives, American Economic Association, vol. 25(1), pages 3-28, Winter.
    11. Shleifer, Andrei & Vishny, Robert W., 2010. "Unstable banking," Journal of Financial Economics, Elsevier, vol. 97(3), pages 306-318, September.
    12. Stiglitz, Joseph E & Weiss, Andrew, 1981. "Credit Rationing in Markets with Imperfect Information," American Economic Review, American Economic Association, vol. 71(3), pages 393-410, June.
    13. Con Keating & Hyun Song Shin & Charles Goodhart & Jon Danielsson, 2001. "An Academic Response to Basel II," FMG Special Papers sp130, Financial Markets Group.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    Banking regulation; Basel II; capital requirements; procyclicality.;

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy

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