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A possibilistic approach to selecting portfolios with highest utility score

机译:一种可能的方法来选择效用得分最高的投资组合

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摘要

The mean-variance methodology for the portfolio selection problem, originally proposed by Markowitz, has been one of the most important research fields in modern finance. In this paper we will assume that: (ⅰ) each investor can assign a welfare, or utility, score to competing investment portfolios based on the expected return and risk of the portfolios; and (ⅱ) the rates of return on securities are modelled by possibility distributions rather than probability distributions. We will present an algorithm of complexity o(n~3) for finding an exact optimal solution (in the sense of utility scores) to the n-asset portfolio selection problem under possibility distributions.
机译:Markowitz最初提出的用于投资组合选择问题的均值方差方法已成为现代金融领域最重要的研究领域之一。在本文中,我们将假设:(ⅰ)每个投资者可以根据投资组合的预期收益和风险为其竞争的投资组合分配福利或效用分数; (ⅱ)证券收益率是根据可能性分布而非概率分布建模的。我们将提出一种复杂度为o(n〜3)的算法,用于在可能性分布下找到n资产投资组合选择问题的精确最优解(在效用分数的意义上)。

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