The Basel Committee Approach To Risk-Weights And External Ratings: What Do We Learn From Bond Spreads?
The Basel Committee for Banking Supervision designed a system of risk weights (the so called standardised approach) to measure the riskiness of banksï¿½ loan portfolios. Its ability to adequately reflect risk is empirically investigated in this paper, through an analysis of the economic capital allocations implied in corporate bond spreads. This is based on a unique dataset of issuance spreads, ratings and other relevant bond variables (such as maturity, face value, time of issuance and currency of denomination) including 7,232 eurobonds issued mostly by Canadian, European, Japanese and U.S. companies during 1991-2003. Three main results emerge. First, the spread/rating relationship is strongly significant with spreads increasing when ratings worsen. Second, the estimated spreads per rating class indicate that the risk/rating relationship might be steeper than the one approved by the Basel Committee. Finally the difference between the spread/rating relation of banks and non-financial firms appears quite blurred and statistically questionable. Following this empirical evidence, we underline some adjustments in the standardised approach risk-weights that might be considered for the future versions of the Basel Accord.
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- Michael B. Gordy, 1998.
"A comparative anatomy of credit risk models,"
Finance and Economics Discussion Series
1998-47, Board of Governors of the Federal Reserve System (U.S.).
- Diana Hancock & Myron L. Kwast, 2001. "Using subordinated debt to monitor bank holding companies: is it feasible?," Finance and Economics Discussion Series 2001-22, Board of Governors of the Federal Reserve System (U.S.).
- Allen N. Berger & Richard J. Herring & Giorgio P. Szego, 1995.
"The role of capital in financial institutions,"
Finance and Economics Discussion Series
95-23, Board of Governors of the Federal Reserve System (U.S.).
- Eva Catarineu-Rabell & Patricia Jackson & Dimitrios P.Tsomocos, 2003.
"Procyclicality and the new Basel Accord - Banks' choice of loan rating system,"
OFRC Working Papers Series
2003fe06, Oxford Financial Research Centre.
- Eva Catarineu-Rabell & Patricia Jackson & Dimitrios P. Tsomocos, 2002. "Procyclicality and the New Basel Accord: banks' choice of loan rating system," Conference Series ; [Proceedings], Federal Reserve Bank of Boston.
- Eva Catarineu-Rabell & Patricia Jackson & Dimitrios Tsomocos, 2005. "Procyclicality and the new Basel Accord - banks’ choice of loan rating system," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 26(3), pages 537-557, October.
- Eva Catarineu-Rabell & Patricia Jackson & Dimitrios P Tsomocos, 2003. "Procyclicality and the new Basel Accord - banks' choice of loan rating system," Bank of England working papers 181, Bank of England.
- Dimitrios Tsomocos & Eva Catarineu-Rabell & Patricia Jackson, 2003. "Procyclicality and the new Basel Accord–banks’ choice of loan rating system," FMG Discussion Papers dp464, Financial Markets Group.
- Dimitrios P Tsomocos & Eva Catarineu-Rabell, 2003. "Procyclicality and the new Basel Accord - Banks` choice of loan rating system," Economics Series Working Papers 2003-FE-06, University of Oxford, Department of Economics.
- Eva Catarineu-Rabell & Patricia Jackson & Dimitrios P. Tsomocos, 2003. "Procyclicality and the new Basel Accord–banks’ choice of loan rating system," LSE Research Online Documents on Economics 24863, London School of Economics and Political Science, LSE Library.
- 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.
- Mark Carey, 1998. "Credit Risk in Private Debt Portfolios," Journal of Finance, American Finance Association, vol. 53(4), pages 1363-1387, 08.
- Perraudin, William & Taylor, Alex P., 2004. "On the consistency of ratings and bond market yields," Journal of Banking & Finance, Elsevier, vol. 28(11), pages 2769-2788, November.
- Diana Hancock & Myron Kwast, 2001. "Using Subordinated Debt to Monitor Bank Holding Companies: Is it Feasible?," Journal of Financial Services Research, Springer;Western Finance Association, vol. 20(2), pages 147-187, October.
- Arie Melnik & Doron Nissim, 2003. "Debt Issue Costs and Issue Characteristics in the Market for U.S. Dollar Denominated International Bonds," Review of Finance, European Finance Association, vol. 7(2), pages 277-296.
- Arie Melnik & Doron Nissim, 2003. "Debt issue costs and issue characteristics in the Eurobond market," ICER Working Papers 09-2003, ICER - International Centre for Economic Research.
- 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.
- Acharya, Viral V & Bharath, Sreedhar T & Srinivasan, Anand, 2003. "Understanding the Recovery Rates on Defaulted Securities," CEPR Discussion Papers 4098, C.E.P.R. Discussion Papers.
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