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中国管理科学 ›› 2006, Vol. ›› Issue (2): 12-15.

• 论文 • 上一篇    下一篇

引入无风险证券的均值——VaR投资组合模型研究

安起光, 王厚杰   

  1. 山东财政学院金融学院, 山东, 济南, 250014
  • 收稿日期:2005-09-10 修回日期:2006-03-20 出版日期:2006-04-28 发布日期:2012-03-07
  • 基金资助:
    国家自然科学基金资助项目(10371025);山东省教育厅人文社会科学重点项目(J04T22);山东财政学院博士基金资助项目

The Study of A Mean-VaR Portfolio Model including Riskfree Security

AN Qi-Guang, WANG Hou-Jie   

  1. Shandong Finance Institute, Jinan 250014, China
  • Received:2005-09-10 Revised:2006-03-20 Online:2006-04-28 Published:2012-03-07

摘要: 本文根据Markowitz均值-方差模型的研究发展过程,结合机会约束模型,引入无风险证券,建立了用VaR代替方差作为风险度量指标的机会约束下均值———VaR投资组合模型,讨论了模型最优解的存在性和唯一性,并得到了模型最优解的解析表达式。

关键词: 无风险证券, 投资组合, 置信水平, 机会约束, VaR

Abstract: According to Markowitz's analysis of mean-VaR portfolio model and the constraint of investment chance model,under the assumption that the rates of return of portfolio are normal random variables,a mean-VaR portfolio model including riskfree securities is established under constraint of investment chance.Existence and uniqueness of the model's optimal solution are discussed on the base of mean-VaR model's effective border.We introduce the constraint of investment chance and obtained the explicit representation of the optimal solution.

Key words: riskfree security, portfolio, confidence level, constraint of investment chance, VaR

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