投资对保险价格的影响研究

本文利用倒向随机微分方程建立了以承保风险为控制变量的保险投资定价模型，并通过分析给出了由投资决定的保险价格公式。由投资来发现保险价格，为保险人进行保险价格调整提供了依据，对保险人进行保险投资和定价有极大的现实意义。     

Multi-period model of portfolio investment and adjustment based on hybrid genetic algorithm

This paper proposes a multi-period portfolio investment model with class constraints, transaction cost, and indivisible securities. When an investor joins the securities market for the first time, he should decide on portfolio investment based on the practical conditions of securities market. In addition, investors should adjust the portfolio according to market changes, changing or not changing the category of risky securities. Markowitz mean-variance approach is applied to the multi-period portfolio selection problems. Because the sub-models are optimal mixed integer program, whose objective function is not unimodal and feasible set is with a particular structure, traditional optimization method usually fails to find a globally optimal solution. So this paper employs the hybrid genetic algorithm to solve the problem. Investment policies that accord with finance market and are easy to operate for investors are put forward with an illustration of application.     

保险投资的最优投资比例研究

本通过分析传统保费投资研究的不足，利用保费收取与保险赔付间的时滞，对收取的保费进行投资，通过考虑承保风险对投资的影响，建立了承保风险的保险投资模型，并得出最优投资比例。这对保险人正确利用保费进行投资有重要的理论和实际意义。