【摘要】 内部控制是近年来监管机构、实务界和学术界共同关注的焦点话题之一。本文使用中国上市公司内部控制指数衡量内部控制质量,实证检验了董事长和审计委员会对于内部控制的影响作用。结果表明,董事长显著影响了内部控制质量。将内部控制区分为内部环境、风险评估、控制活动、信息与沟通、内部监督五个要素后进行分析,发现董事长在内部控制五要素的各个层面均发挥重要作用。本文的实证结果从内部控制质量的角度证明了审计委员会的无效论,并验证了董事长在公司内部控制建设中起到的重要作用,对于上市公司建立健全内部控制和改进提高治理结构提供了经验支持。更多还原

【Abstract】 The past years have seen increasingly rapid advance in the field of internal control,after entering21 centuries,this topic has been extensively used for decades to get more and more attention by regulators,practitioners and researchers in the capital market.In China,as the Ministry of Finance together with China Securities Regulatory Commission,National Audit Office,China Banking Regulatory Commission and China Insurance Regulatory Commission issued the Basic Standard for Enterprise Internal Control in 2008 and released implementation guidelines in 2010,how to improve internal control construction with self condition became a hot topic for Chinese enterprises.However,because there is still no standard measurement method of internal control quality in the prior papers,and there is no more recearch ane evidence which focus on this topic,so that the discussion of interal control quality is still in the exploratory stage in China.Whether audit committee is effective or not is one of the problems people have been always arguing about,and there also have lots of research providing conflict evidence for supporting different opinions of audit committee in capital market of China.While chairman of board always plays an important role in corporate governence of enterprises,and compared with chairmen of foreign enterprises,the chairmen in Chinese enterprises are likely to participate more management of enterprises,such as internal control construction and so on.Using the internal control index developed by a research group from Xiamen University to measure the quality of internal control,and using Chinese A-share listed companies on the Shanghai and Shenzhen Stock Exchanges from 2007 to 2012 as samples,this paper provides an empirical test on whether and how chairman of board and audit committee affect the internal control quality in listed companes of China.Based on the notion that chairman of board is at least implicitly involved in the nomination and election of new members of audit comittee,this paper defines co-option as the proportion of the members who joined the audit committee after the chairman of board assumed office,and co-option is used as independent variable to measure and compare the difference between chairman of board and audit committee.The view of this paper showed that chairman is likely to favor members of audit committee who have similar views or members of audit committee who have close ties or some other basis for affinity with the chairman of board,so that the independence of members of audit committee is threatened,and it would give negetive effect to quality of internal control.The empirical results show that,first of all,unlike audit committee,chairman of board has significant effect with internal control quality.Moreover,this paper divide internal control into five parts,including internal environment,risk assessment,control activities,information&communication and internal monitoring,and it is showed that chairman of board still has significant positive effect with these five parts.In sum,this paper gives empirical analysis to demonstrate unavailability of audit committee in China from the angle of internal control quality,and indicate that chairman of board plays an important role in construction of internal control.All of above give support to establish and perfect internal control,as well as improve corporate governance structure.The innovation and contributions of this paper include:Frist,this dissertation provides new evidence of internal control’s afftecting factors and roles,and points out the reason of this conclusion in Chinese captial market.Second,there are numerous papers which aim at internal control deficiency,but this is the first paper to investigate the important influence of chairman of board on internal control quality in Chinese listed companies.Third,this paper supports the view that audit committee is not effective in internal control quality to some degree.更多还原