The Effect of Auditor Industry Specialization and Auditor Tenure on Comparability of Financial Statements by Emphasis on Firm's Life-Cycle

tenure on comparability of financial statements by emphasis on the firm's life cycle. In this research, the comparability of financial statements was measured by De Franco (2011) model, auditor industry specialization was measured by Krishnan (2003) model and auditor tenure was measured using the numbers of continuous years offering audit services by an auditor. Target sample consists of 112 companies listed in Tehran Stock Exchange during 2009-2015. Hypotheses were examined using regression analysis. Results showed that auditor industry specialization has a positive and significant effect on comparability of financial statements in general and in the maturity stage. Also, auditor tenure has no effect on comparability of financial statements in general and in different stages of firm's life cycle.