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中国管理科学 ›› 2006, Vol. ›› Issue (5): 23-27.

• 论文 • 上一篇    下一篇

摩擦市场中允许卖空的最优投资组合选择

刘明明, 高岩   

  1. 上海理工大学管理学院, 上海, 200093
  • 收稿日期:2005-12-13 修回日期:2006-09-24 出版日期:2006-10-28 发布日期:2012-03-07
  • 基金资助:
    上海市重点学科建设项目资助(T0502)

Portfolio Selection with Short Sales in a Frictional Market

LIU Ming-ming, GAO Yan   

  1. School of Management, University of Shanghai for Science and Technology, Shanghai 200093, China
  • Received:2005-12-13 Revised:2006-09-24 Online:2006-10-28 Published:2012-03-07

摘要: 资本市场的一个重要特征就是存在不确定因素,为了衡量其导致的风险,本文提出基于绝对偏差的新型函数,在一个存在摩擦的资本市场中构造均值-绝对离差(mean-absolute deviation,MAD)投资组合选择模型.该模型结构特殊性使其转化为线性规划问题,从而可利用单纯型法求解.实证分析比较了不同风险函数下投资组合的有效前沿,并验证了该方法的有效性.

关键词: 投资组合选择, MAD模型, 风险度量, 最优化

Abstract: The capital market has a key feature of uncertainty.To measure the risks induced by uncertainties,we proposed a new function based on absolute deviation function.Considering a frictional market,the mean-absolute deviation(MAD) model is constructed.The special structure of the model is utilized to transform a nonsmooth program into a linear one,which can be solved by simplex method.The numerical analysis compares the efficient frontiers of portfolio selection under various risk measures,and shows the validity of the method.

Key words: Portfolio selection, MAD model,measure of risk, optimization

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