Internal Control Quality and Audit Pricing under the Sarbanes-Oxley Act
研究了萨班斯-奥克斯利法案第404条和302条下披露的内部控制问题与审计定价的关系，发现审计费用随问题严重程度变化，且302条下的风险调整比404条更明显。
This paper extends prior research on audit risk adjustment by examining the association of audit pricing with problems in internal control over financial reporting, disclosed under Sections 404 and 302 of the Sarbanes-Oxley Act [SOX]. While studies of auditors' responses to internal control risk provide mixed evidence, it is important to re-examine this issue using data on specific client problems not available prior to SOX. As a baseline, we first establish a strong association of audit fees with internal control problems disclosed in the first year of implementation of Section 404, consistent with prior research (e.g., Raghunandan and Rama 2006). We then address two issues on which prior results are contradictory. In a broadly based sample of accelerated filers, we find that audit pricing for companies with internal control problems varies by problem severity, when severity is measured either as material weaknesses versus significant deficiencies, or by nature of the problem. Also, while audit fees increase during the 404 period, our tests show less relative risk adjustment under Section 404 than under Section 302 in the prior year. Further examining intertemporal effects, we find that companies disclosing internal control problems under Section 302 continue to pay higher fees the following year, even if no problems are disclosed under Section 404. Overall, our findings provide detailed insight into audit risk adjustment during the initial period of SOX implementation.