Simulation-based stress testing of banks’ regulatory capital adequacy
Banks’ holding of reasonable capital buffers in excess of minimum requirements could alleviate the procyclicality problem potentially exacerbated by the rating-sensitive capital charges of Basel II. Determining the required buffer size is an important risk management issue for banks, which the Basle Committee (2002) suggests should be approached via stress testing. We present here a simulation-based approach to stress testing of capital adequacy where rating transitions are conditioned on business-cycle phase and business-cycle dynamics are taken into account. Our approach is an extension of the standard credit portfolio analysis in that we simulate actual bank capital and minimum capital requirements simultaneously. Actual bank capital (absent mark- to-market accounting) is driven by bank income and default losses, whereas capital requirements within the Basel II framework are driven by rating transitions. The joint dynamics of these determine the necessary capital buffers, given bank management’s specified confidence level for capital adequacy. We provide a tentative calibration of this confidence level to data on actual bank capital ratios, which enables a ceteris- paribus extrapolation of bank capital under the current regime to bank capital under Basel II.
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.:
- 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," LSE Research Online Documents on Economics 24863, London School of Economics and Political Science, LSE Library.
- 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.
- 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.
- Holt, Richard W. P., 2003.
"Investment and dividends under irreversibility and financial constraints,"
Journal of Economic Dynamics and Control,
Elsevier, vol. 27(3), pages 467-502, January.
- Richard W P Holt, 2000. "Investment and Dividends under Irreversibility and Financial Constraints," ESE Discussion Papers 55, Edinburgh School of Economics, University of Edinburgh.
- Bhattacharya, Sudipto & Plank, Manfred & Strobl, Günter & Zechner, Josef, 2000.
"Bank Capital Regulation with Random Audits,"
CEPR Discussion Papers
2597, C.E.P.R. Discussion Papers.
- Bangia, Anil & Diebold, Francis X. & Kronimus, Andre & Schagen, Christian & Schuermann, Til, 2002.
"Ratings migration and the business cycle, with application to credit portfolio stress testing,"
Journal of Banking & Finance,
Elsevier, vol. 26(2-3), pages 445-474, March.
- Anil Bangia & Francis X. Diebold & Til Schuermann, 2000. "Ratings Migration and the Business Cycle, With Application to Credit Portfolio Stress Testing," Center for Financial Institutions Working Papers 00-26, Wharton School Center for Financial Institutions, University of Pennsylvania.
- Milne, Alistair & Robertson, Donald, 1996. "Firm behaviour under the threat of liquidation," Journal of Economic Dynamics and Control, Elsevier, vol. 20(8), pages 1427-1449, August.
- Con Keating & Hyun Song Shin & Charles Goodhart & Jon Danielsson, 2001. "An Academic Response to Basel II," FMG Special Papers sp130, Financial Markets Group.
When requesting a correction, please mention this item's handle: RePEc:wpa:wuwpfi:0405003. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (EconWPA)
If references are entirely missing, you can add them using this form.