This paper studies the deficit distribution at ruin by the distribution class of the claim-size distributions in a risk model with the Markov chain stochastic interest. 摘要應用損失賠付額分布函數的分布類(lèi)的特性,在假設隨機利率服從馬爾可夫鏈的條件下,研究了風(fēng)險模型中破產(chǎn)時(shí)刻赤字的分布函數和界值。