Article ID: | iaor20073454 |
Country: | Netherlands |
Volume: | 152 |
Issue: | 1 |
Start Page Number: | 227 |
End Page Number: | 256 |
Publication Date: | Jul 2007 |
Journal: | Annals of Operations Research |
Authors: | Ogryczak Wodzimierz, Speranza Maria Grazia, Mansini Renata |
Many risk measures have been recently introduced which (for discrete random variables) result in Linear Programs (LP). While some LP computable risk measures may be viewed as approximations to the variance (e.g., the mean absolute deviation or the Gini's mean absolute difference), shortfall or quantile risk measures are recently gaining more popularity in various financial applications. In this paper we study LP solvable portfolio optimization models based on extensions of the Conditional Value at Risk (CVaR) measure. The models use multiple CVaR measures thus allowing for more detailed risk aversion modeling. We study both the theoretical properties of the models and their performance on real-Iife data.