Ruin Probability in a Correlated Aggregate Claims Model with Common Poisson Shocks: Application to Reinsurance

Xiang Hu () and Lianzeng Zhang ()
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Xiang Hu: Zhongnan University of Economics and Law
Lianzeng Zhang: Nankai University

Methodology and Computing in Applied Probability, 2016, vol. 18, issue 3, 675-689

Abstract: Abstract This paper considers a correlated aggregate claims model with common Poisson shocks, which allows for dependence in n (n ≥ 2) classes of business across m (m ≥ 1) different types of stochastic events. The dependence structure between different claim numbers is connected with the thinning procedure. Under combination of quota-share and excess of loss reinsurance arrangements, we examine the properties of the proposed risk model. An upper bound for the ruin probability determined by the adjustment coefficient is established through martingale approach. We reduce the problem of optimal reinsurance strategy for maximizing the insurer’s adjustment coefficient and illustrate the results by numerical examples.

Keywords: Common poisson shocks; Thinning procedure; Ruin probability; Adjustment coefficient; Optimal reinsurance; 62P05; 91B30 (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s11009-015-9448-5

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