RUIN PROBABILITY IN A RISK MODEL WITH VARIABLE PREMIUM INTENSITY AND RISKY INVESTMENTS

被引：1

作者：

Mishura, Yuliya ^{[1
]}

Perestyuk, Mykola ^{[1
]}

Ragulina, Olena ^{[1
]}

机构：

[1] Taras Shevchenko Natl Univ Kyiv, Dept Probabil Theory Stat & Actuarial Math, UA-01601 Kiev, Ukraine

来源：

OPUSCULA MATHEMATICA | 2015年 / 35卷 / 03期

关键词：

risk process; infinite-horizon ruin probability; variable premium intensity; risky investments; exponential bound; stochastic differential equation; explosion time; existence and uniqueness theorem; supermartingale property;

D O I：

10.7494/OpMath.2015.35.3.333

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We consider a generalization of the classical risk model when the premium intensity depends on the current surplus of an insurance company. All surplus is invested in the risky asset, the price of which follows a geometric Brownian motion. We get an exponential bound for the infinite-horizon ruin probability. To this end, we allow the surplus process to explode and investigate the question concerning the probability of explosion of the surplus process between claim arrivals.

引用

页码：333 / 352

页数：20

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