双重审计制度取消前后A、B股上市公司盈余管理水平的实证研究:初步分析

Empirical Research on the Level of Earnings Management for A-share Companies and B-share Companies before and after the Abolishment of Duplicate Auditing Institution

以2001—2009年期间在国内A、B股上市交易的所有公司为研究对象,采用琼斯模型和修正的琼斯模型计量上市公司可操控盈余状况。分析研究了A、B股市场上市公司在2007年B股市场强制性双重审计制度取消前后盈余管理水平之间的差异。实证结果表明,强制性双重审计制度取消前,B股市场盈余管理水平显著低于A股市场;而制度取消后,差异依旧存在,但不再显著。从盈余管理的角度研究了中国特有的双重审计制度下上市公司的行为特征,对国内审计和盈余管理研究作出了一定补充。

The change of difference in earnings management between A-share market and B-share market before and after the abolishment of the mandatory duplicate auditing institution in 2007 with the tool of Jones model and modified Jones model to calculate discretional accruals is focus on,and the samples are constituted by listed companies in A-share market and B-share market in the period of 2001 and 2009.The result shows that before the abolishment of the institution,the level of earnings management for B-share market is significantly lower than that of the A-share market,while after the abolishment of the institution,the difference gets narrower and less significant.The mandatory duplicate auditing institution in China from the view of earnings management has been contributed to the research.