The relationship between two kinds of structural credit migration models

In this paper, Mattress Topper we presented an asymptotic relationship between the single threshold model and the model with different upgrade and downgrade thresholds for credit migration problems with fixed boundaries.By partial differential equation (PDE) techniques, we proved that the solution Dining Chair of the asymmetric threshold problem converges to that of a single threshold problem uniformly as one of the asymmetric thresholds approaches the other.