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The Procyclical Effects of Bank Capital Regulation

Listed author(s):
  • Rafael Repullo

    ()

    (CEMFI, Centro de Estudios Monetarios y Financieros)

  • Javier Suarez

    ()

    (CEMFI, Centro de Estudios Monetarios y Financieros)

We develop and calibrate a dynamic equilibrium model of relationship lending in which banks are unable to access the equity markets every period and the business cycle is a Markov process that determines loans’ probabilities of default. Banks anticipate that shocks to their earnings and the possible variation of capital requirements over the cycle can impair their future lending capacity and, as a precaution, hold capital buffers. We compare the relative performance of several capital regulation regimes, including one that maximizes a measure of social welfare. We show that Basel II is significantly more procyclical than Basel I, but makes banks safer. For this reason, it dominates Basel I in terms of welfare except for small social costs of bank failure. We also show that for high values of this cost, Basel III points in the right direction, with higher but less cyclically-varying capital requirements.

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File URL: http://www.cemfi.es/ftp/wp/1202.pdf
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Paper provided by CEMFI in its series Working Papers with number wp2012_1202.

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Date of creation: Feb 2012
Handle: RePEc:cmf:wpaper:wp2012_1202
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  1. Fabian Valencia & Luc Laeven, 2008. "Systemic Banking Crises; A New Database," IMF Working Papers 08/224, International Monetary Fund.
  2. Koopman, Siem Jan & Lucas, Andre & Klaassen, Pieter, 2005. "Empirical credit cycles and capital buffer formation," Journal of Banking & Finance, Elsevier, vol. 29(12), pages 3159-3179, December.
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