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Credit ratings and the standardised approach to credit risk in Basel II

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Author Info
Patrick Van Roy () (European Centre for Advanced Research in Economics and Statistics (ECARES),Universite Libre de Bruxelles)

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Abstract

This paper simulates the minimum capital requirements for the wholesale exposures of a medium-sized bank in each EMU country depending on the credit rating agencies chosen by the bank to risk-weight its exposures in the standardised approach to credit risk in Basel II. Three main results emerge from the analysis. First, although the use of different combinations of credit rating agencies leads to significant differences in minimum capital requirements, these differences never exceed 10 percent of EMU banks’ regulatory capital for wholesale exposures on average. Second, the standardised approach provides a small regulatory capital incentive for banks to use several credit rating agencies to risk-weight their exposures. Third, the minimum capital requirements for the wholesale exposures of EMU banks will be higher in Basel II than in Basel I. I also show that the incentive for banks to engage in regulatory arbitrage in the standardised approach to credit risk is limited.

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Paper provided by European Central Bank in its series Working Paper Series with number 517.

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Length: 54 pages
Date of creation: Aug 2005
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Handle: RePEc:ecb:ecbwps:20050517

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Related research
Keywords: New Basel Capital Accord; capital requirements; credit rating agencies.;

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Find related papers by JEL classification:
G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Mortgages
G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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References listed on IDEAS
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.:
  1. Ferri, Giovanni & Liu, Li-Gang & Majnoni, Giovanni, 2001. "The role of rating agency assessments in less developed countries: Impact of the proposed Basel guidelines," Journal of Banking & Finance, Elsevier, vol. 25(1), pages 115-148, January. [Downloadable!] (restricted)
  2. Andrea Sironi, 2000. "Testing for market discipline in the European banking industry: evidence from subordinated debt issues," Finance and Economics Discussion Series 2000-40, Board of Governors of the Federal Reserve System (U.S.). [Downloadable!]
    Other versions:
  3. Upper, Christian & Worms, Andreas, 2002. "Estimating Bilateral Exposures in the German Interbank Market: Is there a Danger of Contagion?," Discussion Paper Series 1: Economic Studies 2002,09, Deutsche Bundesbank, Research Centre. [Downloadable!]
  4. Ongena, Steven & Smith, David C., 2000. "What Determines the Number of Bank Relationships? Cross-Country Evidence," Journal of Financial Intermediation, Elsevier, vol. 9(1), pages 26-56, January. [Downloadable!] (restricted)
  5. Altman, Edward I. & Saunders, Anthony, 2001. "An analysis and critique of the BIS proposal on capital adequacy and ratings," Journal of Banking & Finance, Elsevier, vol. 25(1), pages 25-46, January. [Downloadable!] (restricted)
  6. Altman, Edward I. & Bharath, Sreedhar T. & Saunders, Anthony, 2002. "Credit ratings and the BIS capital adequacy reform agenda," Journal of Banking & Finance, Elsevier, vol. 26(5), pages 909-921, May. [Downloadable!] (restricted)
  7. Mark Carey, 1998. "Credit Risk in Private Debt Portfolios," Journal of Finance, American Finance Association, vol. 53(4), pages 1363-1387, 08. [Downloadable!] (restricted)
  8. Alexis Derviz & Narcisa Kadlcakova & Lucie Kobzova, 2003. "Credit Risk, Systemic Uncertainties and Economic Capital Requirements for an Artificial Bank Loan Portfolio," Working Papers 2003/09, Czech National Bank, Research Department. [Downloadable!]
  9. Richard Cantor & Frank Packer, 1994. "The credit rating industry," Quarterly Review, Federal Reserve Bank of New York, issue Sum, pages 1-26.
  10. Santos, Joao A.C., 2006. "Why firm access to the bond market differs over the business cycle: A theory and some evidence," Journal of Banking & Finance, Elsevier, vol. 30(10), pages 2715-2736, October. [Downloadable!] (restricted)
  11. Richard Cantor & Frank Packer, 1995. "Sovereign credit ratings," Current Issues in Economics and Finance, Federal Reserve Bank of New York, issue Jun. [Downloadable!]
  12. C. H. Furfine & Jeffery D. Amato, 2003. "Are credit ratings procyclical?," BIS Working Papers 129, Bank for International Settlements. [Downloadable!]
  13. Donald P. Morgan, 2002. "Rating Banks: Risk and Uncertainty in an Opaque Industry," American Economic Review, American Economic Association, vol. 92(4), pages 874-888, September. [Downloadable!]
  14. Jacobson, Tor & Lindé, Jesper & Roszbach, Kasper, 2003. "Internal Ratings Systems, Implied Credit Risk and the Consistency of Banks’ Risk Classification Policies," Working Paper Series 155, Sveriges Riksbank (Central Bank of Sweden). [Downloadable!]
    Other versions:
  15. Degryse, H.A. & Nguyen, G., 2004. "Interbank exposures : an empirical examination of systemic risk in the Belgian banking system," Discussion Paper 4, Tilburg University, Center for Economic Research. [Downloadable!]
    Other versions:
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Cited by:
(explanations, 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.)

  1. Van Laere, Elisabeth & Baesens, Bart & Thibeault, André, 2008. "Bank capital: a myth resolved," Vlerick Leuven Gent Management School Working Paper Series 2007-35, Vlerick Leuven Gent Management School. [Downloadable!]
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