复合二项风险模型的破产概率

本文讨论了一般情形的复合二项风险模型,得出了初始资本为０时的破产概率以及初始资本为ｕ≥０的情况下的破产概率的一般公式．     

复合二项风险模型的破产概率

本首次讨论了一般情形的复合二项风险模型,考虑了它的一些有关性质,得出了初始资本的0时的破产概率,它只与安全负荷系数有关,最后得出了初始资本为u≥0的情况下的破产概率的一般公式。     

复合二项模型下有限时间内的内存概率

本文研究了一般情形的复合二项风险模型,得出了当赔付随机变量服从参数为λ(λ＞0)的指数分布时,生存到任意固定时刻n(n=1,2,3,…)的概率.     

变保费率扰动风险模型的有限时间破产概率和大偏差

该文考虑变保费率的扰动风险模型, 其中索赔的分布是重尾的. 对这个风险模型, 给出了索赔剩余过程的精细大偏差; 同时, 还得到了它的有限时间破产概率的Cramer-Lundberg型极限结果.     

完全离散复合二项风险模型破产概率的一个新求法

本文主要利用过程的马尔可夫性对完全离散复合二项风险模型进行研究,首先得到了赔付间断时间序列和赔付时刻赢余的有限维联合密度,然后根据这一结论,得到了新的破产概率公式以及有限时间内的生存概率公式,并在当初始资本u=0,c=1,赔付随机变量服从赌徒分布即P(Yi=2)=1,i=1,2,3,…的情况下,得到了有限时间内的生存概率.     

完全离散二项风险模型下有限时间内的生存概率

本文用分析方法研究了保险公司在完全离散复合二项风险模型下生存到固定时刻n,在n恰好发生第k次赔付,而且在时刻n的盈余为某数x(x≥0）的概率公式,由此得到了有限时间内的生存概率公式。     

广义二元复合二项风险模型的破产概率

本文研究了索赔过程和保费收取次数均为二项分布的双险种风险模型,得到了其破产概率的一般公式。     

次指数随机变量最大和的大偏差概率及其在有限时间破产概率中的应用

对于由独立同分布的标准均匀分布随机变量中心化的次指数随机变量序列,对于其部分和的最大值 建立了一个大偏差概率的渐近关系.该结果扩展了Korshunov相应的结论. 作为应用, 将Tang的结果,即关于有限时间破产概率的一致渐近估计,由一致变化分布族推广到了整个强次指数族.     

广义复合二项风险模型下的破产概率

将复合二项风险模型的保费收入推广为在单位时间内收取的保单数服从强度为α的poisson分布，利用鞅方法得出了其破产概率的一般公式及满足Lundberg不等式。     

二维复合二项风险模型的精细大偏差

考虑保费随机收取,且索赔过程是保费收取的稀疏过程的二维风险模型,在索赔额的分布是一致变化尾分布并且copula相依时,得到其总索赔和总盈余过程随机和的精细大偏差,推广了相关文献的结论.     

Large deviations for generalized compound Poisson risk models and its bankruptcy moments

We extend the classical compound Poisson risk model to the case where the premium income process, based on a Poisson process, is no longer a linear function. For this more realistic risk model, Lundberg type limiting results on the finite time ruin probabilities are derived. Asymptotic behaviour of the tail probabilities of the claim surplus process is also investigated.     

A property of the renewal counting process with application to the finite-time ruin probability

We consider the renewal counting process , where θ ₁ , θ ₂ ,… are nonnegative independent identically distributed nondegenerate random variables with finite mean. The asymptotics for the tail of the exponential moment are derived. The obtained results are applied to the finite-time ruin probability in a renewal risk model.     

Finite Time Ruin Probabilities and Large Deviations for Generalized Compound Binomial Risk Models

In this paper, we extend the classical compound binomial risk model to the case where the premium income process is based on a Poisson process, and is no longer a linear function. For this more realistic risk model, Lundberg type limiting results for the finite time ruin probabilities are derived. Asymptotic behavior of the tail probabilities of the claim surplus process is also investigated.     

Precise large deviations for a customer-based individual risk model

In this paper,we propose a customer-based individual risk model,in which potential claims by customers are described as i.i.d.heavy-tailed random variables,but different insurance policy holders are allowed to have different probabilities to make actual claims.Some precise large deviation results for the prospective-loss process are derived under certain mild assumptions,with emphasis on the case of heavy-tailed distribution function class ERV(extended regular variation).Lundberg type limiting results on the finite time ruin probabilities are also investigated.     

一类广义双险种二项风险模型的破产概率

讨论了双险种的一般情形的二项风险模型,得到了其破产概率的一般公式和Lundberg不等式.     

复合二项过程下的负风险模型

本文研究了总索赔服从复合二项过程的负风险模型.通过鞅方法推导出了该模型破产概率的Lundberg不等式和破产概率的精确表达式.     

双二项风险模型的破产概率

首先将经典的复合二项风险模型推广到保费到达过程与个体索赔过程是两个相互独立的二项过程的一种新模型，然后运用两种方法得出破产概率满足的一般公式和Lundberg不等式．     

具有混合保费收入的双险种二项风险模型

将双二项风险模型推广为具有混合保费收入的新模型,并运用鞅论的方法得出破产概率满足Lundberg不等式和一般表达式.     

Compound Binomial Risk Model with Random Income in Markov Chain Environment北大核心CSCD

In this paper, I consider that the actuarial model is affected by the environmental process Θ, premium income counting process η, claim counting process I and the claim process B, and establish a compound binomial risk model with random income in Markov chain environment, which is called MRICM, for short. The characteristic five-tuple set is given. It is proved that there exists a probabilistic space (Ω, F, P), and MRICM(Θ, η, I, B) defined on it, and its characteristic five-tuple set coincides with the given one. The recursive equations of conditional ruin probability for finite time and infinite time are obtained. © 2022 Chinese Academy of Sciences. All rights reserved.