Acta Scientiarum Naturalium Universitatis Pekinensis

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q-Zero-covariance Portfolio Frontier

WANG Yiming   

  1. School of Economics, Peking University, Beijing, 100871
  • Received:1999-10-10 Online:2000-09-20 Published:2000-09-20

q-零协方差资产组合前沿

王一鸣   

  1. 北京大学经济学院金融系,北京,100871

Abstract: Unlike the literature.this paper mainly discusses the characteristics of the portfolio which isn't on the portfolio frontier. A more general concept—q-zero-covariance portfolio frontier is proposed, and its geometric configuration is depicted in the σ2(r)—Er] space. The usual zero covariance portfolio of the frontier portfolio is its degenerate case, and the portfolio frontier is the envelope of our q-zero-covariance portfolio frontier as q moves.

Key words: portfolio frontier, frontier portfolio, q-zero-covariance portfolio frontier

摘要: 探讨了资本市场里非前沿资产组合的结构特征,提出一个更具一般性的概念——q-零协方差资产组合前沿,在σ2(r)—Er]坐标平面中刻画了其几何结构。通常使用的前沿资产组合的零协方差资产组合是它的退化型特例,资产组合前沿是所有q-零协方差资产组合前沿的包络线。

关键词: 资产组合前沿, 资产前沿组合, q-零协方差资产组合前沿

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