CVA and vulnerable options pricing by correlation expansions

Fabio Antonelli, Alessandro Ramponi and Sergio Scarlatti

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Abstract: We consider the problem of computing the Credit Value Adjustment ({CVA}) of a European option in presence of the Wrong Way Risk ({WWR}) in a default intensity setting. Namely we model the asset price evolution as solution to a linear equation that might depend on different stochastic factors and we provide an approximate evaluation of the option's price, by exploiting a correlation expansion approach, introduced in \cite{AS}. We compare the numerical performance of such a method with that recently proposed by Brigo et al. (\cite{BR18}, \cite{BRH18}) in the case of a call option driven by a GBM correlated with the CIR default intensity. We additionally report some numerical evaluations obtained by other methods.

Date: 2018-11
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Journal Article: CVA and vulnerable options pricing by correlation expansions (2021)
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