This paper studies a Sparre Andersen negative risk sums model in which the distribution of "interclaim" time is that of a sum of n independent exponential random variables. Thus, the Erlang(n) model is a special c...This paper studies a Sparre Andersen negative risk sums model in which the distribution of "interclaim" time is that of a sum of n independent exponential random variables. Thus, the Erlang(n) model is a special case. On this basis the correlated negative risk sums process with the common Erlang process is considered. Integro-differential equations with boundary conditions for ψ(u) are given. For some special cases a closed-form expression for ψ(u) is derived.展开更多
考虑一类重尾索赔下变保费率带干扰项的风险模型,当索赔到达过程为一般非负整值过程,索赔额的分布属于重尾分布一致变化族时,利用分析和概率的有关理论得到了索赔剩余过程的精细大偏差,从而推广了文献[Wei X,Yu J,Hu Y.Large deviations...考虑一类重尾索赔下变保费率带干扰项的风险模型,当索赔到达过程为一般非负整值过程,索赔额的分布属于重尾分布一致变化族时,利用分析和概率的有关理论得到了索赔剩余过程的精细大偏差,从而推广了文献[Wei X,Yu J,Hu Y.Large deviations and finite time ruin probability for perturbed risk with variable premium rate.Acta Mathematical Scientia,2007,27(4):616-623]中有关结论.展开更多
基金Supported by the Foundation of Suzhou Science and Technology University
文摘This paper studies a Sparre Andersen negative risk sums model in which the distribution of "interclaim" time is that of a sum of n independent exponential random variables. Thus, the Erlang(n) model is a special case. On this basis the correlated negative risk sums process with the common Erlang process is considered. Integro-differential equations with boundary conditions for ψ(u) are given. For some special cases a closed-form expression for ψ(u) is derived.
文摘考虑一类重尾索赔下变保费率带干扰项的风险模型,当索赔到达过程为一般非负整值过程,索赔额的分布属于重尾分布一致变化族时,利用分析和概率的有关理论得到了索赔剩余过程的精细大偏差,从而推广了文献[Wei X,Yu J,Hu Y.Large deviations and finite time ruin probability for perturbed risk with variable premium rate.Acta Mathematical Scientia,2007,27(4):616-623]中有关结论.