其他摘要：In this paper, both dependencies in decrement causes and in lives in life insurance are depicted with the copula functions, and the joint survival functions of the multiple life are compared upon the cases of independence as well as dependence. A general symmetric status of multiple life under dependent causes of decrement is considered, and some influence caused by the dependence between the individuals on the survival functions of the general symmetric status is explained.
关键词：衰减因 ; 多生命 ; 生存分布 ; Copula函数 ; Decrement Causes ; Multiple Life ; Survival Function ; Copula Function
其他关键词：衰减因 ; 多生命 ; 生存分布 ; Copula函数 ; Decrement Causes ; Multiple Life ; Survival Function ; Copula Function
