Uniform Tail Asymptotics for the Sum of Two Correlated Classes with Stochastic Returns and Dependent Heavy Tails |
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Authors: | Ke-Ang Fu Cheuk Yin Andrew Ng |
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Affiliation: | 1. School of Statistics and Mathematics, Zhejiang Gongshang University, Hangzhou, China;2. Department of Finance, The Chinese University of Hong Kong, Shatin, Hong Kong |
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Abstract: | Consider a continuous-time risk model with two correlated classes of insurance business and risky investments whose price processes are geometric Lévy processes. By assuming that the correlation comes from a common shock, and the claim sizes are heavy-tailed and pairwise quasi-asymptotically independent, we investigate the tail behavior of the sum of the stochastic present values of the two correlated classes, and a uniform asymptotic formula is obtained. |
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Keywords: | Consistently varying tails Dominatedly varying tails Investment return Geometric Lévy process Pairwise asymptotic independence Uniformity |
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