The stop-loss reinsurance as one way of reinsurance can make insurers obtain the highest expected effectiveness but the lowest risk variance.

停止损失再保险作为一种再保险方式，在具有相同保费的前提下，能使保险人的期望效用最大，并能使其自留风险方差最小。

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So it is necessary that insurance company transfer part of insurance business to reinsurance company. optimal retention for stop-loss reinsurance is the core part.

因此保险公司通过再保险业务转移风险是必要的，而再保险中的关键问题是最优再保险，即具体的分保保额的研究。

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In the forth chapter we stated the comparison of stop-loss reinsurance premium about dependent risks. We mainly discussed the premium comparison of stop-loss reinsurance in the individual risk models.

第四章研究了风险相依下停止损失再保险保费的比较问题，主要考虑在个体风险模型中若干变量之间存在相依关系时的再保险保费的比较。

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