Impact of Predicting Profit by management on Risk and firm value

The present research indicates investigating relationship between predicting profit by management and firm value and risk via using historical data of 110 companies listed on Tehran Stock Exchange during 2009 to 2013. It is expected that companies، which have policy of profit forecast disclosure، have higher returns and less risks in comparison with other companies. It can be said that it is the result of higher assurance of capital market to these companies. We have used Beta coefficient as the criterion of systematic risk and Q Tobins as the criterion of firm value in this research. Moreover، for examination of research assumption، we have used regression models in which predicting profit by management is considered as independent variable and firm value as dependent variable. Results of this research indicate that significant relationship exists between predicting profit per share of management on firm value، while those predictions have no impact on stock risk.