عنوان مقاله [English]
Shareholders are the firms’ primary owners and follow continuously to maximize their wealth and this wealth is created by favorite performance of the firm. Incorrect use of appropriate indicators for performance measurement and stock value of the firm causes the firm’s value not real value. It has been claimed economic value added (EVA) is able to show real value of the firm. However, inflation causes distortions in EVA model and shows inappropriate indicator from firms’ performance and shareholders’ wealth. The goal of this research is EVA adjustment due to inflation distortions and to near that indicator to true economic profit, finding appropriate model for determine created value or created value added in capital market and it’s compare to unadjusted models. In this middling, market value added (MVA) is the indicator of Shareholders' Wealth increase. Also, information significance of EVA and other competing measures of performance have been studied. The results of our study between periods of 1381 to 1385 that are estimated with use of Oils regression model and Panel Data model show when we correct EVA, a significant relationship between EVA and MVA is generated and when we don’t measure EVA and MVA correctly and don’t adjust due to inflation distortions a significant relevance between them is not generated. This subject shows the role of adjusted EVA in increasing or decreasing shareholders’ wealth and the necessity adjustment of EVA for reflection in market value added. Investigation of relationship between adjusted EVA and other competing performance measures with stock return shows that there is a significant but weak relevance between these variables and the stock return.