数学季刊 ›› 2011, Vol. 26 ›› Issue (2): 239-244.
摘要: In this note, one kind of insurance risk models with the policies having multiple validity times are investigated. Explicit expressions for the ruin probabilities are obtained by using the martingale method. As a consequence, the obtained probability serves as an upper bound for the ruin probability of a newly developed entrance processes based risk model.
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