摘要:Abstract This research explores the effects of various criteria of the earnings quality on the agency costs of the companies. It attempts to respond to the following queries: “what are the effects of the earnings quality on the agency costs? The results of regression analysis suggest that there is no significant difference between the TSE market and other developed markets in the sense that a reverse significant relationship exists between different criteria of the earnings quality information and agency costs criteria. The results of MANOVA also indicate that when earnings quality information is high, the firms’ agency costs are lower.