【作者】 刘星； 刘斌； 周轶强；

【Author】 Liu Xing Liu Bin Zhou Yiqiang Department of Accountancy,School of Economics & Business Administration, Chongqing University,400030

【机构】 重庆大学经济与工商管理学院会计学系；

【摘要】 本文收集了1998—2002年间进行了各种自愿性会计政策变更的268家深沪上市公司数据,在一一配对的基础上,运用均值检验、线性回归和事件史研究方法,并结合利用自愿性会计政策变更所进行的收益平滑、巨额冲销以及政策诱增式盈余管理特征,检验了自愿性会计政策变更的信息噪音以及长期和短期的市场反应。结果发现:1)自愿性会计政策变更的短期市场反应和长期市场反应均为正;2)利用自愿性会计政策变更的巨额冲销和政策诱增式盈余管理行为均存在明显的信息噪音:3)我国投资者并不像无效应假说所假定的那样能"透过数字看出本质",与之对应的机械性假说得以证实。更多还原

【Abstract】 In this study,132 listed companies were chosen as our sample,which had ever increased their earnings by voluntarily changing their accounting methods during 1998-2002.We first examined the determinants for voluntary accounting changes by univariate analyses and logistic regression method on these sample companies and their matched pairs.Then,the degree of these changes was investigated by multiple linear regression models.Our results includes:1) In the investigation of factors affecting the degree of accounting changes,multiple linear regression models result more significantly than univariate analyses and logistic regression ones;2) The results of the sign test have proved that the compensation contracts are associated with whether companies will voluntarily change their accounting methods while political costs,debt contracts and Dividend restrictions hypotheses affect the degree of these changes;3) The power of labor union hypothesis is proved to have a significant effect on whether companies will voluntarily change their accounting methods and the degree of these changes.4) Neither the business reputation hypothesis nor the size of CPA firms hypothesis is proved to has significant effect on voluntary accounting changes.更多还原