The relationship between stock liquidity, cost of capital, and family ownership

The main purpose of this research is to investigate the relationship between stock liquidity and cost of capital and family ownership in 113 companies among the companies listed in the Tehran Stock Exchange during the period of 1391 to 1395. The research method is correlational and multivariate regression has been used using combined data with a fixed effect regression model approach. The research findings indicate that there is a positive and significant relationship between the Amihud lack of liquidity variables and the number of trading days with cost of capital equity, and there is a negative and significant relationship between the spread ask – bid price and the cost of capital equity. Also, there is a positive and significant relationship between the percentage of free floatation shares and the number of trading days with the cost of capital debt and there is a negative and significant relationship between the bid – ask spread and with the cost of debt capital. Also, there is a positive and significant relationship between the Amihud lack of liquidity variables and the number of trading days with the weighted average cost of capital, and there is a negative and significant relationship between the price bid – ask spread and the value of transactions with the weighted average cost of capital. In addition, the family ownership variable has a positive and significant effect on the between stock liquidity and weighted average cost of capital.