“非標(biāo)準(zhǔn)審計(jì)意見”事件對(duì)股價(jià)超額收益率影響實(shí)證研究
本文選題:非標(biāo)準(zhǔn)審計(jì)意見 切入點(diǎn):市場(chǎng)反應(yīng) 出處:《重慶工商大學(xué)》2017年碩士論文 論文類型:學(xué)位論文
【摘要】:2006年起,《會(huì)計(jì)準(zhǔn)則》和《審計(jì)準(zhǔn)則》的發(fā)布,標(biāo)志著我國(guó)資本市場(chǎng)監(jiān)管體系的完善,新的準(zhǔn)則制度加大了對(duì)上市公司公開信息披露的監(jiān)管之后,信息披露更加規(guī)范,數(shù)據(jù)資料更加真實(shí),引入了公允價(jià)值概念和以風(fēng)險(xiǎn)為導(dǎo)向的審計(jì)理念,使上市公司財(cái)務(wù)報(bào)表和經(jīng)營(yíng)狀況能夠進(jìn)行更加真實(shí)地反映,為研究審計(jì)意見的市場(chǎng)反應(yīng)提供的基礎(chǔ)。隨著我國(guó)資本市場(chǎng)的發(fā)展,企業(yè)的公開信息越來(lái)越受到投資者的重視,而審計(jì)意見又是對(duì)上市公司公開財(cái)務(wù)信息的鑒定結(jié)果,因此審計(jì)意見會(huì)對(duì)投資行為產(chǎn)生重大的影響。2012到至今,在新的資本市場(chǎng)情形下,我國(guó)非標(biāo)準(zhǔn)審計(jì)意見能否得到了投資決策者的足夠重視,非標(biāo)標(biāo)準(zhǔn)審計(jì)意見的披露是否會(huì)引起股價(jià)超額收益率的負(fù)面影響是一個(gè)有待研究的問題,。通過非標(biāo)準(zhǔn)審計(jì)意見對(duì)股價(jià)超額收益率的研究,其理論意義和實(shí)際意義在于能夠?qū)Ξ?dāng)前我國(guó)股票市場(chǎng)的有效性進(jìn)行分析、考察審計(jì)意見的信息含量程度;同時(shí)為投資者提供投資建議、促進(jìn)理性投資。本文首先對(duì)國(guó)內(nèi)外學(xué)者對(duì)于上市公司出具的非標(biāo)準(zhǔn)審計(jì)意見與股票市場(chǎng)的影響進(jìn)行了回顧和分析,提出了本文研究的思路。其次,本文介紹了非標(biāo)準(zhǔn)審計(jì)意見的界定,通過委托代理理論、非對(duì)稱信息理論、有效市場(chǎng)假說理論得出了非標(biāo)準(zhǔn)審計(jì)意見對(duì)股票市場(chǎng)影響的傳導(dǎo)機(jī)制。通過對(duì)審計(jì)與股票市場(chǎng)的互動(dòng)發(fā)展及非標(biāo)準(zhǔn)審計(jì)意見出具的歷史趨勢(shì)分析,研究非標(biāo)準(zhǔn)審計(jì)意見對(duì)股票市場(chǎng)的傳導(dǎo)效應(yīng)以及兩者之間互動(dòng)關(guān)系。再次本文采用事件研究超額收益法和回歸分析法對(duì)非標(biāo)準(zhǔn)審計(jì)意見對(duì)股票市場(chǎng)的影響進(jìn)行了實(shí)證研究分析,選取2012年-2015年被出具非標(biāo)準(zhǔn)審計(jì)意見的上市公司作為研究對(duì)象,一共選取了202個(gè)樣本,其中101個(gè)研究樣本和101控制樣本(標(biāo)準(zhǔn)無(wú)保留意見),研究分析了非標(biāo)準(zhǔn)審計(jì)意見公告日前10個(gè)交易日和后30個(gè)交易日的平均超額收益率和累計(jì)平均超額收益率的變化趨勢(shì)及影響程度。研究結(jié)論為:一是非標(biāo)準(zhǔn)審計(jì)意見總體對(duì)股票市場(chǎng)產(chǎn)生了負(fù)面影響;二是帶強(qiáng)調(diào)事項(xiàng)段無(wú)保留意見、保留意見對(duì)股票市場(chǎng)產(chǎn)生顯著負(fù)面影響;三是不同類型非標(biāo)準(zhǔn)審計(jì)意見會(huì)對(duì)股票市場(chǎng)產(chǎn)生不同的負(fù)面影響;四是不同股票市場(chǎng)會(huì)對(duì)非標(biāo)準(zhǔn)審計(jì)意見產(chǎn)生不同程度的負(fù)面影響;五是在事件研究時(shí)間窗口期間,公司資產(chǎn)規(guī)模和會(huì)計(jì)盈余信息是影響股票超額收益率的因素。最后本文通過從上市公司監(jiān)督、第三方審計(jì)機(jī)構(gòu)監(jiān)管、提升投資者投資素質(zhì)三個(gè)方面提出了在新的資本市場(chǎng)發(fā)展形勢(shì)下對(duì)非標(biāo)準(zhǔn)審計(jì)意見認(rèn)識(shí)的對(duì)策。
[Abstract]:Since 2006, the release of Accounting Standards and auditing Standards has marked the perfection of China's capital market supervision system. After the new standard system has increased the supervision of public information disclosure of listed companies, the information disclosure has become more standardized. With the introduction of fair value concept and risk-based audit concept, the financial statements and operating conditions of listed companies can be reflected more truthfully. With the development of China's capital market, the public information of enterprises is paid more and more attention by investors, and the audit opinion is the appraisal result of public financial information of listed companies. Therefore, the audit opinion will have a significant impact on investment behavior. From 2012 to now, in the new capital market situation, can our non-standard audit opinion get enough attention from investment decision makers? Whether the disclosure of non-standard audit opinion will cause the negative impact of excess return on stock price is a question to be studied. Its theoretical and practical significance lies in its ability to analyze the effectiveness of the current stock market in China, to investigate the information content of the audit opinion, and to provide investors with investment advice. First of all, this paper reviews and analyzes the non-standard audit opinions issued by listed companies and the impact of the stock market, and puts forward the ideas of this paper. This paper introduces the definition of non-standard audit opinion, through principal-agent theory, asymmetric information theory, The efficient market hypothesis theory has obtained the transmission mechanism of the influence of non-standard audit opinion on stock market. Through the interactive development of audit and stock market and the historical trend analysis of non-standard audit opinion, This paper studies the conduction effect of non-standard audit opinion on the stock market and the interaction between them. Thirdly, this paper makes an empirical study on the impact of non-standard audit opinion on the stock market by using the event study excess return method and regression analysis method. The listed companies issued non-standard audit opinions from 2012 to 2015 were selected as the research objects, and 202 samples were selected. Of these, 101 study samples and 101 control samples (standard unqualified opinion) analyzed the average excess returns and cumulative average excess returns for the first 10 trading days and 30 trading days after the non-standard audit opinion announcement date. The research conclusions are as follows: first, the non-standard audit opinions have a negative impact on the stock market in general; The other is the unqualified opinion with emphasis item paragraph, the negative effect of the qualified opinion on the stock market, the third, the different types of non-standard audit opinion will have different negative influence on the stock market. Fourth, different stock markets will have different negative effects on non-standard audit opinions; fifthly, during the time window of incident research, The scale of company assets and accounting earnings information are the factors that influence the excess return rate of stock. In order to improve the investment quality of investors, this paper puts forward the countermeasures of understanding the non-standard audit opinions under the new capital market development situation.
【學(xué)位授予單位】:重慶工商大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:F832.51;F239.4
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