Article ID: | iaor20118633 |
Volume: | 150 |
Issue: | 3 |
Start Page Number: | 530 |
End Page Number: | 552 |
Publication Date: | Sep 2011 |
Journal: | Journal of Optimization Theory and Applications |
Authors: | Xu Jiuping, Li Steven, Zhou Xiaoyang |
Keywords: | fuzzy programming, portfolio selection, Chance-constrained programming |
This paper deals with a class of chance constrained portfolio selection problems in the fuzzy random decision making system. An integrated fuzzy random portfolio selection model with a chance constraint is proposed on the basis of the mean‐variance model and the safety‐first model. According to different definitions of chance, we consider two types of fuzzy random portfolio selection models: one is for the optimistic investors and the other is for the pessimistic investors. In order to deal with the fuzzy random models, we develop a few theorems on the variances of fuzzy random returns and the equivalent partitions of two types of chance constraints. We then transform the fuzzy random portfolio selection models into their equivalent crisp models. We further employ the