Abstract: This paper generalizes the existing asymptotic single-factor model to address issues related to industry heterogeneity, default clustering and capital requirement s parameter uncertainty in US retail loan portfolios. We argue that the Basel II capital requirement overstates the...

This paper generalizes the existing asymptotic single-factor model to address issues related to industry heterogeneity, default clustering and capital requirement s parameter uncertainty in US retail loan portfolios. We argue that the Basel II capital requirement overstates the riskiness of...