The following article develops a simultaneous multi-factor model for defaults and recoveries. Applying this model, risk parameters can be forecast using systematic and idiosyncratic risk fac-tors and their implied correlations. The theoretical framework is accompanied by an empirical analysis in...

A major topic in retail lending is the measurement of the inherent portfolio credit risk. Two importantparameters are default probabilities (PDs) and correlations. Both are considered in theNew Basel Accord. Due to limited empirical evidence on their magnitude, in particular for retailcredit...

In addition to “classical” approaches, such as the Gaussian CreditMetrics or Basel II model, recentlythe use of other copulas has been proposed in the area of credit risk for modeling loss distributions,particularly T copulas which lead to fatter tails ceteris paribus. As an amendment to...

The New Basel Capital Accord will allow the determination of banks’ regulatory capital requirementsdue to probabilities of default which are estimated and forecasted from internal ratings.Broadly, two rating philosophies are distinguished: Through the Cycle versus Point inTime Ratings. We...

Among the most crucial input parameters for credit portfolio risk models are the co-movements ofdefault risks. Due to limited empirical evidence about the magnitude of correlations the New BaselCapital Accord sets standard requirements for calculating regulatory capital requirements, e.g. in...