Number of Jumps in Two-Sided First-Exit Problems for a Compound Poisson Process

被引:3
|
作者
Li, Shuanming [1 ]
Lu, Yi [2 ]
Jin, Can [1 ]
机构
[1] Univ Melbourne, Dept Econ, Ctr Actuarial Studies, Melbourne, Vic, Australia
[2] Simon Fraser Univ, Dept Stat & Actuarial Sci, 8888 Univ Dr, Burnaby, BC V5A 1S6, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Classical risk model; Two-sided first-exit time; Two-sided smooth exit-recovery time; Number of claims; Doubly-killed scale function; LEVY PROCESSES; TIMES; SURPLUS; RUIN;
D O I
10.1007/s11009-015-9453-8
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
In this paper, we study the joint Laplace transform and probability generating functions of two pairs of random variables: (1) the two-sided first-exit time and the number of claims by this time; (2) the two-sided smooth exit-recovery time and its associated number of claims. The joint transforms are expressed in terms of the so-called doubly-killed scale function that is defined in this paper. We also find explicit expressions for the joint density function of the two-sided first-exit time and the number of claims by this time. Numerical examples are presented for exponential claims.
引用
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页码:747 / 764
页数:18
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