研究保险公司用超额索赔再保险最小化其有限时间破产概率的问题,用鞅方法得到有限时间破产概率的上界以及保险公司的最优再保险自留额.
A problem for minimizing the finite time ruin probability by excess ot loss reinsurance in some insurance companies is considered. The upper bound of the finite time ruin probability and the optimal retention of these insurance companies are given in terms of the martingale method.