فهرست مطالب maryam laleh mazhin

The current research sought to determine the impact of market competition and product substitution on the relationship between the abnormal return of the first earnings announcement and the last earnings announcement (as a basis of the information content of the earnings announcement). The research method was applied and the statistical method used included the multivariate regression model. To test the hypotheses of the research, the financial data of a statistical sample including 112 companies admitted to the Tehran Stock Exchange from 2013 to 2016 were collected. The results of the hypothesis test showed that there was no significant relationship between the abnormal return of the first profit announcement and the abnormal return of the last profit announcement; in addition, the product market competition, product substitution, the difference in the direction of the abnormal return of the first and the abnormal return of the last profit announcement, and the loss report could not explain the relationship between the abnormal return of the first profit announcement and the impact of the abnormal return of the last profit announcement. It appears that the delay in the announcement of profits and imitation of the latest profit forecast could be reasons for rejecting the research hypotheses. In addition, the inefficiency of the Tehran Stock Exchange market could be considered a reason for the lack of information content in the announcement of profits, and the abnormal returns were caused by other factors. In other words, the lack of effectiveness of abnormal returns can indicate that the competition of the product market does not have the necessary regulatory efficiency and the Iranian stock market tends towards monopoly or multilateral monopoly.

The purpose of the present study is to review the impact of auditors’ reputation, fee,and professional skepticism on Audit quality in earnings management from the view of auditors inthe Iranian Association of Certified Accountants. In this research, the quantitative-survey method and questionnaire tool was used fordata collection. From among 230 audit institutes that were members of the Iranian Association ofCertified Accountants in 2021, 114 institutes were chosen to email the questionnaires and finally96 filled out questionnaires were received. For the assessment of the internal consistency of thequestionnaire, Cronbach’s alpha coefficient was used which showed an acceptable reliability level(0.7). The obtained data out of research were analyzed by SPSS (Version 28). The results show that auditors’ fee and professional skepticism have a significanteffect on audit quality in earnings management; but auditors’ reputation does not have an importanteffect in this regard. This finding shows that auditors, for obtaining better quality in auditingmethods of earnings management, should emphasize more on their audit fee as a criterion for theireffort and professional skepticism. The results of this study can assist independent auditors to enhance their auditquality in recognizing and preventing any sort of intervention in earnings by the clients. Moreover,executive foundations such as audit organizations and stock exchange can help to find out somedeceitful corporations which fabricate fake financial statements by the intervention in theirearnings.

This study evaluate the relationship between Governmental Affiliation and firms value. In this study, data have been gathered from 73 accepted companies in Tehran stock exchange from 2005 to2014 and the research hypothesis have been examined by utilizing the regression coefficient analysis . The results showed that there is a direct and significant correlation between Governmental Affiliation and Firm`s value. In other words, we can say that the state-owned companies that are independent of government influence on supply and demand. According to Levine (2005), governmental managers effect in firm`s risk by political decorum and Subsequently, the Firm`s value also affected. Therefore, Governmental Affiliation can be used as a significant variable in firm`s value.