Review is research affect Tobin q ratio and Revenue growth rate on the level of investment in listed companies in Tehran Stock Exchange

The purpose of this paper is research affect Tobin q ratio and Revenue growth rate on the level of investment.The order One handrered companies from Tehran Stock Exchange (1381-7) have selected for they research. Company’s have Tobin q ratio to two groups from Tobin q ratio point of view that are firms with a Tobin q ratio smaller than One and firms with a Tobin q ratio greater than One. The regression test results showed that; for the total of firms, Tobin q ratio has significant affect on the level of investment,but Revenue growth rate has significant affect on the level of investment. Also results showed that; for the of firms with q 1 Tobin q ratio has significant affect on the level of investment.