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中国管理科学 ›› 2003, Vol. ›› Issue (2): 66-69.

• 论文 • 上一篇    下一篇

指数效用下企业的风险投资策略

刘夏清1, 李林1, 杨招军2   

  1. 1. 湖南大学工商管理学院 长沙 410082;
    2. 湖南大学数学与计量经济学院 长沙 410082
  • 收稿日期:2002-09-01 修回日期:2003-01-02 出版日期:2003-04-28 发布日期:2012-03-06
  • 基金资助:
    国家电力公司软科学资助项目(SP[2002]02144);湖南省教育厅科研资助项目(01B031)

Risk Investment Policies for a Firm with Exponent Utility

LIU Xia-qing1, LI Lin1, YANG Zhao-jun 2   

  1. 1. College of Business and Management, Human University, Changsha 410082, China;
    2. College of Mathematics and Econometrics, Human University, Changsha 410082, China
  • Received:2002-09-01 Revised:2003-01-02 Online:2003-04-28 Published:2012-03-06

摘要: 本文在指数效用函数的假设条件下,讨论具有随机风险的企业,极大化期望终止效用的最优投资策略问题。企业投资选择是储蓄、贷款及风险投资(如购买股票)交易。本文主要结果是:从贷款利率高于存款利率的实际出发,运用随机最优控制理论,对于具有随机风险的企业,得到使企业期望终止效用取最大值的最优投资策略,并对这些结果给出了应用举例。

关键词: 随机控制, 组合选择, 受控扩散过程, 不完备市场, 存贷利率差, Hamilton-Jacobi-Bellman方程

Abstract: Under the assumption of exponent utility, this paper treats optimal investment policies of a firm with a random risk process. The firm’s choice on investment can be savings, loan and trading of risky asset. The principal achievements are as follows: According to the fact that the interest rate on loan is higher than the one on savings, we acquire the optimal policies that maximize the expectation of terminal utility. Furthermore, we present an example of application in the end.

Key words: stochastic control, portfolio theory, controlled diffusion process, rate difference on savings and loan, Hamiltion Jocobi Bellman equation

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