managements overconfidence and efficiency of investment decisions and financing

Overconfident managers overestimate the probability and impact of favorable events on the company's cash flows and evaluate it for negative events less than reality. The characteristic of overconfidence in managers affects the way profit and loss are and the book value of assets and liabilities recognized. Financing and investment strategies are the two basic strategies in the field of financial management of an enterprise that the manager must decide. Therefore, the purpose of this study is to investigate the relationship between managers' uncertainty, domestic financing and investment efficiency in companies listed on the Tehran Stock Exchange. To test the research hypotheses, multiple linear regression model based on panel data has been used. The results of the survey of 140 companies listed on the Tehran Stock Exchange during the period 2013 to 2019 indicate that there is a positive and significant relationship between managers' overconfidence and the efficiency of investment and domestic financing. In fact, when managers were overconfident, there was too little investment. In addition, the research findings show that there is no significant relationship between managers' overconfidence and low investment.