Does Internal Audit Function Quality Deter Management Misconduct?
利用专有数据，研究发现内部审计职能质量越高，管理层不当行为发生的可能性越低，即使在控制董事会、审计委员会和外部审计师质量后依然成立。
ABSTRACT Standard-setters believe high-quality internal audit functions (IAFs) serve as a key resource to audit committees for monitoring senior management. However, regulators do not enforce IAF quality or require disclosures relating to IAF quality, which is in stark contrast to regulatory requirements placed on boards, audit committees, and external auditors. Using proprietary data, I find that a composite measure of IAF quality is negatively associated with the likelihood of management misconduct even after controlling for board, audit committee, and external auditor quality. This result is robust to a variety of other specifications, including controlling for internal control quality and separate estimation during the pre- and post-SOX time periods. A difference-in-differences analysis indicates that misconduct firms have low IAF quality and competence during misconduct years and improve IAF quality and competence in the post-misconduct years. These findings suggest that regulators, audit committees, and other stakeholders should consider ways to improve IAF quality.