The Investigation of Relationship between Free Cash Flows and Over-Investment through Considering Adjusted Role of Corporate Governance Mechanisms in Tehran Stock Exchange

The purpose of this research is the survey of relationship between free cash flows and over-investment through considering adjusted role of corporate governance mechanisms in Tehran Stock Exchange. This practical research is executed through descriptive-correlation method. This research was done through systematic knockout sampling in companies admitted to Tehran Stock Exchange between 2009 to 2015 with a sample of 134 items. To conduct this research, regression model was used via statistical softwares of Eviews 6 and SPSS 18. The findings of this research show that free cash flows have negative effect on the over-investment in companies accepted in Tehran Stock Exchange. The effect of the independence of the directors’ board on this relationship has also been confirmed