Large-deviation probabilities for maxima of sums of subexponential random variables with application to finite-time ruin probabilities

被引:0
|
作者
Jiang Tao [1 ]
机构
[1] Zhejiang Gongshang Univ, Sch Finance, Hangzhou 310018, Peoples R China
来源
SCIENCE IN CHINA SERIES A-MATHEMATICS | 2008年 / 51卷 / 07期
基金
中国国家自然科学基金;
关键词
large-deviation probability; strongly subexponential distribution; finite-time ruin probability; the compound Poisson model;
D O I
10.1007/s11425-008-0083-2
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We establish an asymptotic relation for the large-deviation probabilities of the maxima of sums of subexponential random variables centered by multiples of order statistics of i.i.d. standard uniform random variables. This extends a corresponding result of Korshunov. As an application, we generalize a result of Tang, the uniform asymptotic estimate for the finite-time ruin probability, to the whole strongly subexponential class.
引用
收藏
页码:1257 / 1265
页数:9
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