Investigating the Effect of Mandatory Rotation of Auditors on the Relationship between Audit Fees and Market Value Added (MVA), Economic Value Added (EVA) and Corporate Growth Opportunities

The main purpose of this research is to investigate the effect of mandatory rotation of auditors on the relationship between audit fees and market value added, economic value added and growth opportunities for listed companies in Tehran Stock Exchange. Research hypotheses based on a statistical sample of 106 companies during an 11-year period from 2007 to 2017 were tested using the multivariable regression model and panel data method. Results suggested that there is a positive and significant relationship between audit fees and market value added, economic value added, and growth opportunities for companies. Also, there is no significant relationship between the mandatory rotation of auditors and market value added, economic value added, and growth opportunities for companies. In addition, the mandatory rotation of auditors has a negative and significant effect on the relationship between audit fees and market value added of companies and has a positive and significant effect on the relationship between audit fees and economic value added of companies. Finally, the mandatory rotation of auditors has no significant effect on the relationship between audit fees and corporate growth opportunities.