Impact of ownership concentration on the relationship between management overconfidence and debt maturity of firms.

Debt structure is one of the key indicators that determine the company's success, and it contributes to a sustainable growth of the company. Hence, debt-critical debt-critical decisions are critical to the survival of companies. In this paper, the effect of ownership concentration on the relationship between management over-liability and corporate debt maturity in companies admitted to the Tehran Stock Exchange and in the period between 1386 and 1395 was investigated. In the same vein, the debt was classified into three categories of short-term, medium-term and long-term debt and tested for its uncertainty. The results of the survey of 79 companies admitted to Tehran Stock Exchange showed that there is a positive and significant relationship between short-term and medium-term debt with management over-reliance. Also, there is a significant and significant relationship between long-term debt repayment with the uncertainty of management and the existence of a significant and negative relationship The concentration of ownership on the relationship between short-term and long-term debt did not have a significant effect on management's uncertainty, and the concentration of ownership on the relationship between the expected medium-term debt and the management's uncertainty was significant.