中国寿险公司多元化经营的风险分析

本文针对民生工程中旧房加装电梯费用分摊的问题, 利用合作对策理论建立了一个模型. 为了合理分配全体合作的收益,合作对策理论中必须对对任何一个部分参与者的合作都定义收益. 但是在旧房加装电梯工程中，部分参与者的合作是不可能进行的，故无收益可言. 为此，本文所建立的模型实际上包含一个虚拟的合作收益函数, 使之符合合作分配公理体系，进而可以确定收益的分配，再由此确定费用的分摊比例，所得到的结论近似于按楼梯比例来计算.

A Risk Analysis on Diversified operation of Life Insurance Company in China

This paper chooses the standard deviation of the return on assets and the return on equity of five life insurance groups, Xinhua, China Life Insurance, Taiping, Taikang and Pingan during 2001-2011 as the measure of firm-specific risk. The mean of the Lines Entropy Index of five life insurance groups is selected as the index of diversified operation. The paper takes them for empirical analysis. The results show that the diversified operation has a non-linear relationship with the standard deviation of the return on assets and the return on equity of the life insurance company. That is to say, the diversified operation can reduce the volatility of ROA and ROE to some extent. However,diversified operation may increase the volatility of ROA and ROE.