Mohammad Seddigh Ansari Qeshmi - Economics and Administrative Sciences, Payamenoor University, Tehran, Iran
Hamideh Nazaridavaji - Faculty of Economics and Administrative sciences, Ferdowsi University of Mashhad, Mashhad, Iran

The present study is concerned about the relationship between earnings quality and audit quality of audit firms to figure out whether the earnings quality of firms audited by larger audit firms is more than that of the smaller firms or the earnings quality of firms audited by longer tenure audit firms is more than that of the shorter tenure firms or not.The study's hypotheses were tested using a sample of ۱۲۹ year-company listed on the Tehran Stock Exchange during ۲۰۱۲-۲۰۱۶ and by using the multiple regression pattern based on the data integration technique. Hence, the multivariable regression model is used for testing the hypotheses.The obtained results show that the earnings quality of firms audited by small audit firms outweighs that of the large audit firms. Moreover, the findings indicate that those firms audited by longer tenure audit firms, compared with those audited by shorter tenure audit firms, enjoy a better earnings quality.

Earnings Quality, Audit Firms’ Tenure, Mandatory Rotation, Audit Quality