Credit Risk Measurement in the Context of Basel II -- Concentration Risk in Credit Portfolios and Its Treatment Under Basel II -- Model-Based Measurement of Name Concentration Risk in Credit Portfolios -- Model-Based Measurement of Sector Concentration Risk in Credit Portfolios -- Conclusion

Banks increasingly recognize the need to measure and manage the credit risk of their loans on a portfolio basis. We address the subportfolio "middle market". Due to their specific lending policy for this market segment it is an important task for banks to systematically identify regional and...

We estimate a Pareto distribution for loan losses, as an alternative to the commonly used Vasicek distribution, using simulated data. A key assumption in the construction of Vasicek distribution is that firm-level risk is idiosyncratic. It also assumes that firm exposure to systemic risk is...