Valuation of Credit Default Swap with Counterparty Default Risk by Structural Model
by Jin Liang of the Tongji University,
Abstract: This paper provides a methodology for valuing a credit default swap (CDS) with considering a counterparty default risk. Using a structural framework, we study the correlation of the reference entity and the counterparty through the joint distribution of them. The default event discussed in our model is associated to whether the minimum value of the companies in stochastic processes has reached their thresholds (default barriers). The joint probability of minimums of correlated Brownian motions solves the backward Kolmogorov equation, which is a two dimensional partial differential equation. A closed pricing formula is obtained. Numerical methodology, parameter analysis and calculation examples are implemented.
Keywords: CDS Spread, Counterparty Default Risk, Structural Model, PDE Method, Monte Carlo Calculation
Published in: Applied Mathematics, Vol. 2, No. 1, (January 2011), pp. 106-117.