Breed, Douw Gerbrand; van Jaarsveld, Niel; Gerken, Carsten - In: Risks 9 (2021) 11, pp. 1-22
A new methodology to derive IFRS 9 PiT PDs is proposed. The methodology first derives a PiT term structure with accompanying segmented term structures. Secondly, the calibration of credit scores using the Lorenz curve approach is used to create account-specific PD term structures. The PiT term...