| The National audit office is the important organization which has introduced in our country since the year 2002, it has experienced eight years development. The National audit office system stems from the US, forms the reason deals with the financial corrupting practices question which the American Enterprise existed then, this system is very good in the European and American area development. The National audit office system already founded and has developed more than 60 years, our country introduce the National audit office system recent year, the goal is deals the domestic financial corrupting practices question which appears in the capital market, this question expands day by day.The National audit office system emerged from the US and later it has experienced the transformation for many times, by many national quotations, it is truly become an un-replaceable organization in the long time’s developing process to the company. Although the National audit office system exercised surveillance’s function to the corporate finance, but finance shortcoming document still sometimes occurred in the USA where the National audit office system has highly developed, including many world-shaking major event. Each time presents the big financial corrupting practices scandal, the related organization can initiate the revision of National audit office’s scope of official duty movement, this also becomes the National audit office to renew unceasingly, keeps pace with the times, instills fresh blood’s powerful engine. It is the National audit office system that contained the more shortcoming document occurrence unceasingly, governed for various countries company has provided the very good model. Therefore, many countries establish the National audit office system in abundance, and transforms the use according to our country national condition.In recent years our country capital market development vigorously, our country is still at the socialism initial stage of the developing country to practice the market economy lack the experience, we profited from the developed capitalist country the successful experience is one shortcut. The National audit office system already experienced in the west developed capital market may directly adopted by us.At the time the National audit office system formed the scholar started to conduct the research about it, and has formed the rich theory achievement. The research of National audit office had more than 70 years development’s history in the overseas, involves every aspects of National audit office, the research angle obtains differently also has the difference conclusion. Although the National audit office system in our country’s development insufficient ten years, our country’s scholars also carry on studying thoroughly, using the data which our country capital market provided in our country’s realistic situation. Although the scholars have done the massive research, but the important research forms in the National audit office system just established in our country.One system display function is requires the time, the former research lacks the enough sampled data support. The related law has not carried on. But to cater to the negotiable securities Supervisory department’s request, the companies all established the National audit office besides ST Corporation and the companies which already has the organization similar to the National audit office. The existing research results concentrate in study whether should establish the National audit office, which factors will affect the company to establish the National audit office and so on. The realistic situation was the major companies already had established the National audit office; question crux no longer was whether should establish the National audit office, but was whether the National audit office to play the role.Whether the National audit office does play the role, the most direct-viewing examination method studies the National audit office whether to have fulfilled its basic function. This article take National audit office’s function studies as the frame. National audit office has many function, the author divides its function in three parts. Respectively is the National audit office to the company internal control surveillance, the National audit office to maintain the exterior auditor’s independent function, National audit office management the relationship between audit department and exterior auditor, and the communication function in corporate management and exterior investor. Now the National audit office has near eight-year developing process in our country, therefore in the data access aspect author thought that may select a long time.This article divides into six major parts, first introduced that National audit office system’s starting and the development process, enables the reader to have a perceptual understanding to the National audit office. Then the introduction each country regarding the National audit office function’s different stipulation, obtains the function which the National audit office should have. Afterward summarizes the National audit office to display its function. In the above foundations, to the National audit office resumption valid empirical study design, establishes the basic supposition and the statistical model. Finally, according to empirical analysis’s result proposed that causes the National audit office resumption more effective related suggestion.The real diagnosis part’s design, the examination are this article’s key points. This part acts according to the above National audit office basic functions to divide three parts to establish the supposition and the model separately. The data originates from CSMAR database and information disclosure quality examination data of Shenzhen stock exchange.The first part is from internal control angle to research the National audit office resumption validity. In the article took the internal control condition as the finance iteration situation’s substitution variable, and contrast the situation before and latter, the check result indicated that around the year the National audit office established the company’s financial iteration condition has no distinct improvement. The author examined the year National audit office established and one year later, finally demonstrated that the financial iteration situation had the change, explaining that National audit office’s function has hysteretic features. Hereafter, this part further studies the direction of this kind of change, selected the longer time. The supposition 1:After the National audit office sets up, the company has the financial iteration possible change in sexuality to be small. The return result has rejected the supposition 1, after the National audit office is founded, company’s financial iteration situation has been more serious, but this kind of relationship is not remarkable. Therefore, the real diagnosis examination’s conclusion is the National audit office in the internal control aspect resumption expiration.The second part is from the communication with the exterior auditor to research the National audit office resumption validity. In this part the report of audit situation and whether the auditor is changed after making the non-standard audit opinion as the substitution variable. The regression model used six years data to establish two basic suppositions. Supposition 2:After the National audit office sets up the company writes up the non-standard audit opinion the probability to be smaller; Supposition 3:Set up National audit office’s company exterior auditors to be replaced because they write up the non-standard opinion report’s possibility become small. The return result has accepted the supposition 2 and the supposition 3, after the audit committee sets up, the company obtains "cleanly" the report of audit, the possibility the company change the auditor because they writes up the non-standard opinion report become small. The explanation National audit office played the protection role to the exterior auditor, it indicated that the National audit office resumption was effective.The third part is from communication angle research National audit office resumption validity. It examines its resumption validity from the communication between the National audit office and the corporate managers. Supposition 4:The National audit office sets up audit expense reduction. The regression model takes audit expense as the explanatory variable, the National audit office is set up as the explanatory variable, the controlled variable including the registered capital, the synthesis leverage factor, whether is one of four big Accounting firms. The check result has rejected the null hypothesis. From the angle that National audit office communicate the corporate managers and exterior investor, the article uses whether the information’s quality improve as the substitution variable. The data comes from Shenzhen Negotiable securities Company’s website. Supposition 5: The companies which set up National audit office its information disclosure quality enhancement. The information disclosure quality as the explanatory variable, the National audit office is set up as the explanatory variable. The return result indicated after the National audit office sets up, the information disclosure quality is not improved.In summary, the empirical analysis obtains the conclusion that the National audit office is effective in the exterior auditor’s relational aspect resumption, is invalid in internal control’s surveillance and the communication all quarters aspect resumption. Because in the article the real diagnosis part analysis needs the data the special details, this article sample comes from Shenzhen stock market, it only indicate the National audit office system indirectly in our country’s present situation. The author owes the thorough place, has many details to be worth further studying. |
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