This paper compares the option implied tail indexes and volatilities from two option pricing formulas based on heavy-tailed distributions: generalized extreme value (GEV) distribution and generalized logistic (GLO) distribution. Option pricing models based on heavy-tailed distributions with...

Asymptotic Single Risk Factor (ASRF) model is used to derive the regulatory capital formula of Internal Ratings-Based approach in the new Basel accord (Basel II). One of the important assumptions in ASRF model for credit risk is that the given portfolio is well diversified so that one can easily...

The proposals of the Basel Committee on Banking Supervision for the revision of minimum requirements for bank's risk capital leave the quanti¯cation of loss-given-default (LGD) parameter used for capital calculation unspeci¯ed. This paper proposes a new methodology for incorporating LGD...