The study of behavioral factors in the selection of optimal portfolio in

The aim of this study was to "study behavioral factors in the selection of optimal portfolio Iran capital market" is. In order to achieve this goal, the dominant factors for mental accounting and loss aversion behavior and investment in stock and optimal portfolio selection with high efficiency compared to standard finance Using data from 106 firms listed in the Tehran Stock Exchange during the period of 5 years from 2011 to 2014 And regression analysis, variance analysis, was measured.The results showed that the expected return on portfolio behavioral model with an emphasis on mental accounting and loss aversion (as an indicator of behavioral factors) is greater than the expected return of the Standard Model and The hypothesis was accepted.