Pricing black-scholes options with correlated credit risk and jump risk

Weidong Xu, Weijun Xu and Weilin Xiao

Applied Economics Letters, 2015, vol. 22, issue 2, 87-93

Abstract: This article follows the framework of Klein (1996) to present an improved method of pricing vulnerable options under jump diffusion assumptions about the underlying stock prices and firm values which are appropriate in many business situations. In contrast to Klein's (1996) model, jumps allow not only for sudden changes in stock prices and firm values, but also for a firm to default instantaneously because of an unexpected drop in its value. Therefore, our model is able to provide sufficient conceptual insights about the economic mechanism of vulnerable option pricing. In particular, an analytical pricing formula for vulnerable European options under jump diffusion model is derived. The numerical results show that a jump occurrence in firm values can increase the likelihood of default and reduce the vulnerable option prices.

Date: 2015
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DOI: 10.1080/13504851.2013.875098

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