Examining the role of lack of transparency of financial information and audit quality on the relationship between aggressive taxation and stock price concurrency

The adoption of aggressive tax policies is one of the policies that are considered in evaluating the performance of managers by shareholders and the capital market, and on the other hand, stock price synchronization is a relatively new field in financial and economic research, and since it has a strong relationship with economic growth and development and The stability of the country's capital market is of interest. The aim of the present study is to investigate the role of the lack of transparency of financial information and audit quality on the relationship between aggressive taxation and stock price synchronization in companies listed on the Tehran Stock Exchange. The statistical population of the research includes all the companies admitted to the Tehran Stock Exchange during the years 2014-2018. In order to select the statistical sample, the systematic elimination method was used, and after applying the relevant criteria, 860 companies (172 companies) were selected as the statistical sample. The results of the first hypothesis test of the research showed that there is a positive and significant relationship between aggressive taxation and stock price concurrency. Also, the findings of the second hypothesis showed that the lack of transparency of financial information has a positive and significant effect on the relationship between aggressive taxation and stock price concurrency. Finally, the findings of the third research hypothesis also indicated that high-quality auditing limits aggressive taxation and reduces stock price concurrency.