최대주주와 외부감사인의 변경이 내부회계관리제도 검토의견 개선에 미치는 영향

The purpose of this study investigates whether the largest shareholder and the auditor's change would remediate internal control review opinion over deficiencies of the previous year. The sample of this study are composed of the companies listed in KOSPI and KOSDAQ which disclosed internal control deficiencies in the previous year. There are many studies that documented the difference of corporate governance between the companies with and without remediation of internal control deficiencies after Ashbaugh et al.(2008). These studies usually focused on independence and expertise of BOD and audit committee and documented that internal control deficiencies are likely to be remediated as the independence and the financial expertise of BOD and the financial expertise of audit committee are higher (Goh 2009; Johnstone et al. 2011; Choi and Jeon 2012), and as the size of BOD and audit committee are greater (Hammersley et al. 2012; Choi and Jeon 2012). A few studies that analysed whether the change of CFO affect remediation of internal control deficiencies documented that internal control deficiencies are likely to be remediated as CFO is replaces by a person who have more experience of financial practice (Li et al. 2010; Johnstone et al. 2011). Meanwhile, the recent studies are concentrated on whether auditors affect remediation of internal control deficiencies. Ettredge et al.(2011) documented that internal control deficiencies are likely to be remediated as auditor is replaced by industry expertise. Hammersley et al.(2012) also documented that the companies without remediation of internal control deficiencies are likely to change auditors and pay more audit fees than those with remediation of internal control deficiencies, which suggests that the companies that disclose internal control deficiencies are likely to change auditor to remediate internal control deficiencies. We document as follows. First of all, we find that the companies that did not change the largest shareholder are positively related to the remediation of internal control review opinion, and increase of the largest shareholder's ownership among the companies with the continuity of the largest shareholder are incrementally positively related to the remediation of internal control review opinion. Additionally, we find that the firms with the same largest shareholder significantly improve the debt ratio and substantially remediate internal control deficiencies through non-audit service related to internal control review.