The Effects of accounting standards of 30 and 31 on Performance evaluation criteria and Earnings Response Coefficient in Listed Companies of Tehran Stock Exchange

Availability of Transparent and comparable financial information is one of the most important elements of accountability and informed decision making, and have an impact on economic development. However financial information can be extracted from various sources, but at present financial statements constitute the primary core of information resources, and accountants are responsible for preparing and presenting these statements. According to the fact that statements are prepared and reported according to the accounting standards, develop of accounting standards have special importance. This research attempt to answer this question: "Whether application of accounting standards of 30 and 31 affect Performance Evaluation Criteria and Earnings Response Coefficient?" In this research, the information content of the earning has been measured by using Performance evaluation criteria and Earnings Response Coefficient such as Economic Value Added, Adjusted Economic Value Added, Rate of return on assets, and Rate of return on equity. In order to perform this study, information of 122 companies listed in Tehran stock exchange were selected as a statistical sample. The results of the data analysis, by using regression techniques based on combined data, indicate that application of accounting standards of 30 and 31 has statistically significant effect on Economic Value Added, Rate of return on assets, Rate of return on equity, and also Earnings response coefficient. But these standards have no statistically significant effect on Adjusted Economic Value Added.