Investigation of Variables of Audit Fees and Audit Firm Size in Family Firms Accepted in Tehran Stock Exchange

The main objective of this study is to evaluate the audit fees and audit firm size in family firms accepted in Tehran Stock Exchange. The investigated year period was 1384 to 1390 and the selected sample consisted of 35 family firms and 64 non-family firms. To test the hypothesis, panel data and panel logit methods are used. The results showed that there is no significant difference in the amount of audit fees between family and nonfamily firms. Also, no significant relationship was seen between the percentage of family ownership and audit fees. However, the results showed that family firms make use of Audit Organization to a less probability than the nonfamily firms. Also the results stated that in family firms, as the percentage of family ownership increases, the probability to select the Audit Organization decreases.