Research On The Influence Of The Effectiveness Of Internal Control On Audit Opinion Of Listed Company

Effective internal control can reduce the possibility of accounting informationmisstatement and managers optional operate accounting information, and then providereasonable protection for improving the reliability of financial report. With the release of“the basic internal control norms for enterprises” in2008and “internal control supportingguidelines” in2010, the construction and improvement of the internal control is more andmore taken seriously. The audit opinion is the comment that certified public accountantsto audit financial reports of authenticity and fairness, and it is also the important basis ofinvestors and stakeholders to make investment decisions. In the modern audit mode,internal control is the important factors that certified public accountants considered, andinternal control effectiveness has an important influence on the audit risk and audit cost,and audit opinion type mainly depends on the risk and audit cost. So if the effectivenessof internal control will affect the audit opinion? They have what relation? Due to thelimitation of available data, at present our country scholars have less empirical literatureson this aspect. With the improvement of China’s listed company internal controlstandards, internal control related information of listed company is more and more makepublic, this provide efficient data for study the relationships of internal controleffectiveness and audit opinion from the perspective of theoretical. Study the effect ofeffectiveness of internal control on auditing opinions can not only promote the listedcompanies strengthen the construction of internal control and perfect the governancestructure of listed companies, but also can promote the improvement of certified publicaccountants provide the right audit opinion, improve the quality of audit opinion, reducethe risk of audit.In order to study the influence of the effectiveness of internal control to financialstatement audit opinion, in this paper, on the basis of summarizing the existing literatureat home and abroad, introducing the meaning of effectiveness of internal control、it’simpact factors and how to measurement the effectiveness of internal control; And fromthe theoretically introduce the theoretical basis of effectiveness of internal control affect the audit opinion and the effectiveness of internal control impact on audit opinion. Whencarry on the empirical research, select the shenzhen motherboard A-share companiesfrom2009to2011as sample, by descriptive statistics analysis, correlation analysis andbinary Logistic regression model to test samples. The results show that the overalleffectiveness of internal control has significantly negative correlation with the non-cleanaudit opinion; Effectiveness factors of risk assessment, effectiveness factors of controlactivities have significantly negative correlation with the non-clean audit opinion;Effectiveness factors of Control environmental, effectiveness factors of information andcommunication and effectiveness factors of monitoring have not exist significantnegative correlation with the non-clean audit opinion. Finally, according to the results ofempirical research, puts forward some Suggestions to perfect the effectiveness of internalcontrol of listed company.