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主办:中国优选法统筹法与经济数学研究会
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中国管理科学 ›› 2004, Vol. ›› Issue (1): 24-27.

• 论文 • 上一篇    下一篇

应用内点算法求解允许买空/卖空情况下的投资组合问题

杨国梁, 黄思明   

  1. 中国科学院科技政策与管理科学研究所, 北京, 100080
  • 收稿日期:2003-05-09 修回日期:2003-12-17 出版日期:2004-02-28 发布日期:2012-03-07
  • 基金资助:
    国家自然科学基金资助项目(70171023,19731010,79970052)

Solving Optimal Portfolio Selection Problem with Short Sale via Interior Point Methods

YANG Guo-liang, HUANG Si-ming   

  1. Institute of Policy and Management, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-05-09 Revised:2003-12-17 Online:2004-02-28 Published:2012-03-07

摘要: 本文着重讨论了允许买空卖空条件下的投资组合求解问题。由于在实际的经济活动中存在买空卖空的现象,本文讨论了这种情况下的最优化模型,并用内点算法结合Matlab编程,给出了问题的最优解。同时,对投资者对风险的偏好系数A进行了数值分析,可以得到最优的A值A*,即当投资者对风险的偏好系数A=A*时,投资者可以得到最大的投资效用。

关键词: 效用, 内点算法, 偏好

Abstract: This paper studies mainly the solution of Optimal Portfolio Selection Problem with the permission of short sale via Interior Point Methods.In real economic activities,short sale is widely used by some investors especially in western world.We solve the quadratic programming problems with no constraints about short sale via interior point methods.Furthermore,we obtain the graph expressing the relations between coefficient A and utility,in which the investor with maximum utility can be found.

Key words: utility, interior point method, preference

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