Investigating the effect of corporate governance mechanisms on the stock price crash risk

The purpose of this study is to investigate the effect of corporate governance mechanisms on the risk of falling stock prices of companies listed on the Tehran Stock Exchange. Corporate governance mechanisms include ownership structure, board structure and audit quality. the dependent variable of this research is the price crash risk and independent variables including: Ownership concentration , Independence of the board and Audit quality (size of audit, audit fees , Auditor's industry expertise). This research is based on applied purpose and in terms of nature, descriptive and correlational. In this research, regression analysis (OLS) has been used. The statistical population of this research is all companies accepted in Tehran Stock Exchange between 2016 and 2020. Finally, the multivariate regression method has been used using hybrid data. The results of the first hypothesis showed that ownership concentration has a significant effect on the price crash risk. The findings of the second hypothesis indicate that the independence of the board has a significant effect on the price crash risk. The results of the third hypothesis showed that audit quality has a significant effect on the price crash risk.