신외감법 도입에 따라 감사품질이 ESG등급에 미치는 영향

[Purpose] This study studied the effect of audit quality on ESG rating according to the revised external audit law. [Methodology] The effect of the revised external audit law and the interaction effect with audit hour, audit fee, and big accounting firms, which are substitutes for audit quality, on ESG rating was analyzed. The study sample is from 2015 to 2022, and the total number of samples is 4,290, and the results of the study are as follows. [Findings] First, as a result of analyzing the effect of audit quality on ESG ratings, audit hour has a positive effect on ESG ratings, and audit fees have a positive effect on ESG ratings. In addition, the variable of whether or not a big accounting firm has a positive effect on ESG ratings. Second, as a result of analyzing the effect of the interaction between the revised external audit law and audit quality on the ESG rating, it was confirmed that the interaction effect variable between audit hour and the revised external audit law had a positive effect on the ESG rating, and the interaction effect variable between the audit fee and revised external audit law had a positive effect on the ESG rating. It was also observed that the interaction effect variable between the big accounting firm variable and the revised external audit law had a positive effect on the ESG rating. [Implications] This study will be able to contribute to prior research on ESG by empirically analyzing whether the role of auditors in the capital market can have a significant impact on ESG ratings in relation to the revised external audit law and audit quality.