ANALYSIS OF THE EFFECTS OF AUDIT REPORT TYPES ON FIRM VALUE

The study aims to determine the effects of audit reports, which are one of the foundations of assurance between firms and firm interest groups, on the market value of firms and present empirical evidence in Turkey. In this context, unqualified, adverse, and disclaimer of opinion audit reports of 77 non-financial companies in BIST 100 for the period 2010/Q1-2021/Q3 were analyzed with the Driscoll-Kraay Estimation method within the framework of panel data methodology. As a result of the analysis, it has been concluded that the unqualified opinion affected positively the market value of the firm, and the disclaimer of opinion had a negative effect. On the other hand, no significant relationship was found between Adverse opinion and firm value. It is expected that the results, which are obtained from the study, will contribute to the limited literature on audit opinion and firm value relationship, as well as create a perspective for investors in the investment process.