Jiang Wuyuan, Liu Zaiming. The Maximum Surplus before Ruin in a Generalized Erlang(n) Risk Process Perturbed by Diffusion[J]. Chinese Journal of Applied Probability and Statistics, 2011, 27(3): 256-264.
Citation: Jiang Wuyuan, Liu Zaiming. The Maximum Surplus before Ruin in a Generalized Erlang(n) Risk Process Perturbed by Diffusion[J]. Chinese Journal of Applied Probability and Statistics, 2011, 27(3): 256-264.

The Maximum Surplus before Ruin in a Generalized Erlang(n) Risk Process Perturbed by Diffusion

  • In this paper, we discuss a renewal risk process (Sparre Andersen risk model) perturbed by diffusion in which the claim inter-arrival times are generalized Erlang(n) distributed. The approach used is similar to that of Albrecher, et al.\,(2005), decomposing a generalized Erlang(n) random variable into an independent sum of n exponential random variables. Integro-differential equations with certain boundary conditions for the distribution of the maximum surplus before ruin are obtained. The special case where the claim size distribution is a K_m distribution is considered.
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