An Assessment of the Internal Rating Based Approach in Basel II
AbstractThe new bank capital regulation commonly known as Basel II includes a internal rating based approach (IRB) to measuring credit risk in bank portfolios. The IRB relies on the assumptions that the portfolio is fully diversified and that systematic risk is driven by one common factor. In this work we empirically investigate the impact of these assumptions by comparing the risk measures produced by the IRB with those of a more general credit risk model that allows for multiple systematic risk factors and portfolio concentration. Our tests conducted on a large sample of eurobonds over a ten year period reveal that deviations between the IRB and the general model can be substantial.
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Bibliographic InfoPaper provided by Henley Business School, Reading University in its series ICMA Centre Discussion Papers in Finance with number icma-dp2008-04.
Length: 29 pages
Date of creation: Aug 2008
Date of revision:
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More information through EDIRC
Basel II; Internal Rating Based Approach; Credit Rating; Credit Risk;
Find related papers by JEL classification:
- G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
- G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
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- Merton, Robert C., 1973.
"On the pricing of corporate debt: the risk structure of interest rates,"
684-73., Massachusetts Institute of Technology (MIT), Sloan School of Management.
- Merton, Robert C, 1974. "On the Pricing of Corporate Debt: The Risk Structure of Interest Rates," Journal of Finance, American Finance Association, vol. 29(2), pages 449-70, May.
- Jacobson, Tor & Lindé, Jesper & Roszbach, Kasper, 2004.
"Credit Risk versus Capital Requirements under Basel II: Are SME Loans and Retail Credit Really Different?,"
Working Paper Series
162, Sveriges Riksbank (Central Bank of Sweden).
- Tor Jacobson & Jesper Lindé & Kasper Roszbach, 2005. "Credit Risk Versus Capital Requirements under Basel II: Are SME Loans and Retail Credit Really Different?," Journal of Financial Services Research, Springer, vol. 28(1), pages 43-75, October.
- Maria Vassalou & Yuhang Xing, 2004. "Default Risk in Equity Returns," Journal of Finance, American Finance Association, vol. 59(2), pages 831-868, 04.
- Perli, Roberto & Nayda, William I., 2004.
"Economic and regulatory capital allocation for revolving retail exposures,"
Journal of Banking & Finance,
Elsevier, vol. 28(4), pages 789-809, April.
- Roberto Perli & William I. Nayda, 2003. "Economic and regulatory capital allocation for revolving retail exposures," Finance and Economics Discussion Series 2003-39, Board of Governors of the Federal Reserve System (U.S.).
- Rudiger Kiesel & William Perraudin & Alex Taylor, 2001. "The structure of credit risk: spread volatility and ratings transitions," Bank of England working papers 131, Bank of England.
- Düllmann, Klaus & Scheicher, Martin & Schmieder, Christian, 2007. "Asset correlations and credit portfolio risk: an empirical analysis," Discussion Paper Series 2: Banking and Financial Studies 2007,13, Deutsche Bundesbank, Research Centre.
- Michael B. Gordy, 2002.
"A risk-factor model foundation for ratings-based bank capital rules,"
Finance and Economics Discussion Series
2002-55, Board of Governors of the Federal Reserve System (U.S.).
- Gordy, Michael B., 2003. "A risk-factor model foundation for ratings-based bank capital rules," Journal of Financial Intermediation, Elsevier, vol. 12(3), pages 199-232, July.
- Jarrow, Robert A & Lando, David & Turnbull, Stuart M, 1997. "A Markov Model for the Term Structure of Credit Risk Spreads," Review of Financial Studies, Society for Financial Studies, vol. 10(2), pages 481-523.
- Lopez, Jose A., 2004.
"The empirical relationship between average asset correlation, firm probability of default, and asset size,"
Journal of Financial Intermediation,
Elsevier, vol. 13(2), pages 265-283, April.
- Jose A. Lopez, 2002. "The empirical relationship between average asset correlation, firm probability of default and asset size," Working Paper Series 2002-05, Federal Reserve Bank of San Francisco.
- Hamerle, Alfred & Liebig, Thilo & Rösch, Daniel, 2003. "Credit Risk Factor Modeling and the Basel II IRB Approach," Discussion Paper Series 2: Banking and Financial Studies 2003,02, Deutsche Bundesbank, Research Centre.
- Calem, Paul S. & LaCour-Little, Michael, 2004. "Risk-based capital requirements for mortgage loans," Journal of Banking & Finance, Elsevier, vol. 28(3), pages 647-672, March.
- Jacobson, Tor & Linde, Jesper & Roszbach, Kasper, 2006.
"Internal ratings systems, implied credit risk and the consistency of banks' risk classification policies,"
Journal of Banking & Finance,
Elsevier, vol. 30(7), pages 1899-1926, July.
- 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).
- Crouhy, Michel & Galai, Dan & Mark, Robert, 2000. "A comparative analysis of current credit risk models," Journal of Banking & Finance, Elsevier, vol. 24(1-2), pages 59-117, January.
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