审计委员会与审计质量——来自中国A股市场的经验证据

本文以中国2004年—2005年期间获得无保留审计意见的A股上市公司为研究样本,采用截面Jones模型估计出的公司操纵性应计利润(盈余管理)的绝对值作为审计质量的衡量指标,考察了审计委员会与审计质量之间的关系。研究发现,在控制了"会计师事务所规模"、"公司是否面临退市风险"、"审计意见是否带强调事项"、"公司经营活动现金流"、"公司盈余数量"、"年度"等指标后,设立审计委员会的公司的盈余管理绝对值显著比未设立审计委员会的公司小,这说明审计委员会能够显著的提高审计质量。进一步研究发现:审计委员会的成立时间越长,审计质量越高;审计委员会在2005年的作用比2004年更加显著。

Audit Committee And Audit Quality: Empirical Evidence From China's A- shares Market

This paper,using the data of those listed firms that received unqualified audit opinions during 2004 to 2005 in the Chinese A-shares Market,and measuring audit quality by the discretionary accruals calculated by the Cross-sectional Jones Model,investigates the relationship between audit committee characters and audit quality.We find that,after controlling the influence of other variables(such as auditor size,cash flow,earnings,year,whether the company is taking risk of delisting,whether the audit opinion includes emphasis),companies with audit committee got better audit quality than companies without audit committee.The older of the audit committee,the better of audit quality.Besides,the effect of audit committee in 2005 is better than 2004.