内部审计质量与审计费用研究--基于中国上市公司的证据

Study on Internal Audit Quality and the External Audit Fee——An empirical evidence from China's listed companies

本文基于注册会计师审计准则第1411号中有关注册会计师在信赖内部审计师工作决策时所考虑的有关因素,来建立内部审计质量的替代变量,首次对我国上市公司内部审计质量与审计费用之间关系进行实证研究。具体而言,本文从内部审计师的客观性、专业胜任能力和内部审计部门的规模来定义内部审计质量,以2006—2007年我国境内上市公司为研究对象。研究结果表明,在控制其他变量的影响之后,高质量的内部审计有助于减少审计费用。本文扩展了内部审计和外部审计费用研究,为注册会计师利用内部审计师工作帮助财务报表审计提供了经验证据,同时也为上市公司完善治理结构提供新的证据。

In this paper, we develop some proxies of internal audit quality based on CSA NO. 1411. Using data of Chinese Listed Companies from 2006 to 2007, we provide new evidence on the relationship between internal audit quality and external audit fees at the first time in China. Specifically, we define internal audit quality in forms of internal auditor＇s objectivity, competence, and internal audit department size .We find that CSA NO. 1411-based internal audit quality proxies are associated with lower unexpected fees. This paper expands the study on internal audit and external audit fee, and provides the evidences about external auditors to rely on the work of internal auditors in performing a financial statement audit. At the same time, this paper also provides the new evidences for enhancing Corporate Governance Structure.