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: | Vercher Enriqueta, Len Teresa, Liern Vicente, Marco Paulina, Segura Jos Vicente |
Keywords: | fuzzy sets, economics, programming: linear |
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.