Optimal reinsurance arrangements in the presence of two reinsurers
Optimal reinsurance arrangements in the presence of two reinsurers
复制标题
存在两个再保险公司时的最佳再保险安排
DOI:
10.1080/03461238.2012.723638
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发表时间:
2012-04
影响因子:
1.8
通讯作者:
Meng, Hui
中科院分区:
文献类型:
--
作者:
Chi, Yichun;Meng, Hui
In this paper, we investigate the optimal form of reinsurance from the perspective of an insurer when he decides to cede part of the loss to two reinsurers, where the first reinsurer calculates the premium by expected value principle while the premium principle adopted by the second reinsurer satisfies three axioms: distribution invariance, risk loading, and preserving stop-loss order. In order to exclude the moral hazard, a typical reinsurance treaty assumes that both the insurer and reinsurers are obligated to pay more for the larger loss. Under the criterion of minimizing value at risk (VaR) or conditional value at risk (CVaR) of the insurer's total risk exposure, we show that an optimal reinsurance policy is to cede two adjacent layers, where the upper layer is distributed to the first reinsurer. To further illustrate the applicability of our results, we derive explicitly the optimal layer reinsurance by assuming a generalized Wang's premium principle to the second reinsurer.
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