A downside risk approach for the portfolio selection problem with fuzzy return

A downside risk approach for the portfolio selection problem with fuzzy return

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Article ID: iaor20062711
Country: Spain
Volume: 9
Issue: 1
Start Page Number: 61
End Page Number: 77
Publication Date: May 2004
Journal: Fuzzy Economic Review
Authors: , , , ,
Keywords: fuzzy sets, economics, programming: linear
Abstract:

This paper presents a new possibilistic programming approach to the portfolio selection problem. It is based on two issues: the approximation of the rates of return on securities by means of fuzzy numbers of trapezoidal form, for which we use the interval-valued expectation defined by Dubois and Prade, and the perception that down-side risk is a more realistic description of an investor's preferences. We use a data set from the Spanish stock market to illustrate the performance of our method.

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