arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.07480math.PR
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多变量Brown风险模型的流行病型失效

Pandemic-type Failures in Multivariate Brownian Risk Models

Krzysztof Dȩbicki, Enkelejd Hashorva, Nikolai Kriukov

摘要:

在保险、金融和其他应用概率领域,对多个同时发生的故障进行建模是很重要的,特别是从流行病类型事件的角度来看。用于分析多重故障的基准极限模型是经典的$d$维布朗风险模型(Brm),参见[1]。从理论和实践的角度来看,感兴趣的是在给定的时间范围内多个同时故障的概率的计算。这一贡献的主要研究结果关注的概率,至少$k$的$d$组件的Brm同时失败的近似。我们推导出有限和无限时间范围的概率的精确界和渐近近似。我们的结果推广了文献[2,3]的结果。

英文摘要:

Modelling of multiple simultaneous failures in insurance, finance and other areas of applied probability is important especially from the point of view of pandemic-type events. A benchmark limiting model for the analysis of multiple failures is the classical $d$-dimensional Brownian risk model (Brm), see [1]. From both theoretical and practical point of view, of interest is the calculation of the probability of multiple simultaneous failures in a given time horizon. The main findings of this contribution concern the approximation of the probability that at least $k$ out of $d$ components of Brm fail simultaneously. We derive both sharp bounds and asymptotic approximations of the probability of interest for the finite and the infinite time horizon. Our results extend previous findings of [2,3].

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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