内部控制质量与审计师变更——来自我国上市公司的经验证据

Internal Control Quality and Auditor Changes:Evidence from Chinese Listed Companies

以我国2010年变更审计师的上市公司作为样本,采用主成分分析方法构建衡量上市公司内部控制质量的指标,对内部控制质量与审计师变更的关系进行研究。研究发现:上市公司内部控制质量越低,变更审计师的可能性越大;而变更审计师的公司对高质量审计的需求概率则与内部控制质量变化表现为倒U型曲线关系,即对于变更审计师的公司,在变更方向上,高质量审计需求与内部控制质量的变化表现出先上升、后下降的趋势。这说明当内部控制足够有效时,内部控制与高质量审计之间具有替代关系。

The paper examines the relationship between the internal control quality and auditor changes by using the listed companies which changed their auditors in 2010 as samples.The results show that there is a statistically significant negative correlation between the internal control quality and auditor changes.To the listed companies which changed their auditors,the relationship between the demand for high quality auditors and internal control quality demonstrates an inverted U type curve.It means that when their internal control quality is effective enough,the relationship between internal control and the demand for high quality auditors is substitutive.