内控鉴证与财务报告质量——兼论内控审计是否比内控审核更有效

Internal Control Attestation and Quality of Financial Statements:Is Internal Control Audit More Effective Than Internal Control Review?

利用沪深A股非金融类上市公司2007—2013年内控审计、审核报告数据,研究发现:经过内控鉴证的公司,财务报告质量显著高于未经内控鉴证的公司;经过内控审计的公司,财务报告质量显著高于经过内控审核的公司。这不仅证明内控鉴证能够提高企业财务报告的质量,而且说明内控审计比内控审核更有效地提升了财务报告质量,可见,我国内控规范体系以内控审计替代内控审核是必要且有效的。

This paper examines whether internal control audit is more effectively than internal review on improving financial report quality. We study the association between internal control audit/review report and accrual quality based on panel model and DID （difference in difference） model and we find ：1 ） the companies that have receives an internal control audit report or internal control review report have higher accrual qualitythan the companies that haven＇t received anyinternal attestation report; 2） the companies that have received an internal control audit report have higher accrual quality than the companies that have received an internal control review report. This research results prove that internal control audit is more effectively than internal control review and external oversight around internal control is necessary and effective.