Review and Implementation of Credit Risk Models of the Financial Sector Assessment Program (FSAP)
AbstractThe paper presents the basic Credit Risk+ model, and proposes some modifications. This model could be useful in the stress-testing financial sector assessments process as a benchmark for credit risk evaluations. First, we present the setting and basic definitions common to all the model specifications used in this paper. Then, we proceed from the simplest model based on Bernoulli-distributed default events and known default probabilities to the fully-fledged Credit Risk+ implementation. The latter is based on the Poisson approximation and uncertain default probabilities determined by mutually independent risk factors. As an extension we present a Credit Risk+ specification with correlated risk factors as in Giese (2003). Finally, we illustrate the characteristics and the results obtained from the different models using a specific portfolio of obligors.
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Bibliographic InfoPaper provided by International Monetary Fund in its series IMF Working Papers with number 06/134.
Date of creation: 01 May 2006
Date of revision:
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This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-08-05 (All new papers)
- NEP-FMK-2006-08-05 (Financial Markets)
- NEP-RMG-2006-08-05 (Risk Management)
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Working Papers Series
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