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內(nèi)部控制指數(shù)與盈余管理的相關(guān)性研究

發(fā)布時(shí)間:2018-02-02 17:53

  本文關(guān)鍵詞: 內(nèi)部控制指數(shù) 盈余管理 上市公司 出處:《吉林大學(xué)》2014年碩士論文 論文類型:學(xué)位論文


【摘要】:近年來,美國幾家大公司相繼爆出丑聞。2002年,安然公司財(cái)務(wù)造假事件轟動(dòng)全球,世界通訊、施樂公司相繼其后爆出財(cái)務(wù)丑聞。與此同時(shí),四大會(huì)計(jì)師事務(wù)所經(jīng)常被牽扯到財(cái)務(wù)造假事件中,很難做到獨(dú)善其身。在中國,藍(lán)田證券欺詐案、銀廣廈財(cái)務(wù)業(yè)績(jī)?cè)旒、國美黃光裕被調(diào)查事件、毒奶粉“三氯氰胺”事件等近些年爆出的丑聞讓我們反思。除了獲取巨額利潤(rùn),企業(yè)內(nèi)部控制的薄弱也是以上國內(nèi)外多家知名企業(yè)進(jìn)行盈余管理行為、操縱其財(cái)務(wù)報(bào)表利潤(rùn)的根本原因。為了加強(qiáng)內(nèi)部控制建設(shè),從1992年到2013年,COSO委員會(huì)出臺(tái)了一系列的相關(guān)文件,對(duì)內(nèi)部控制的五要素和五目標(biāo)不斷的修改完善。我國在借鑒了國外關(guān)于企業(yè)內(nèi)部控制的經(jīng)驗(yàn),結(jié)合本國國情,,也相繼出臺(tái)了關(guān)于我國企業(yè)內(nèi)部控制的相關(guān)要求,我國企業(yè)內(nèi)部控制也逐步進(jìn)入到成熟階段。 盈余管理行為會(huì)影響財(cái)務(wù)報(bào)告的可靠性,誤導(dǎo)財(cái)務(wù)報(bào)表的使用者做出錯(cuò)誤的決策,危害利益相關(guān)者的權(quán)益。而有效的企業(yè)內(nèi)部控制會(huì)使財(cái)務(wù)報(bào)告的可靠性提高,降低企業(yè)利益相關(guān)者的損失,因?yàn)閮?nèi)部控制將“為財(cái)務(wù)報(bào)告的可靠性提供合理保證”。那么,在我國,合理的內(nèi)部控制是不是能夠預(yù)防盈余管理行為的發(fā)生?本文就這一問題展開研究。 本文以2012年深市A股上市公司(剔除ST企業(yè)和金融類企業(yè))的數(shù)據(jù)為研究樣本,按照內(nèi)部控制的五目標(biāo),分定量和定性指標(biāo)采用主成分分析法合成內(nèi)部控制指數(shù),評(píng)估樣本內(nèi)部控制質(zhì)量。因變量盈余管理的度量,則采用利潤(rùn)分離法,用瓊斯模型回歸出可操縱性應(yīng)計(jì)利潤(rùn)DA,并用DA的絕對(duì)值代表公司盈余管理水平。并根據(jù)本文的研究?jī)?nèi)容,在借鑒了國內(nèi)外學(xué)者的研究方法后,建立回歸模型,檢驗(yàn)內(nèi)部控制與盈余管理之間的關(guān)聯(lián)性。然后用內(nèi)部控制五個(gè)一級(jí)目標(biāo)下的20個(gè)二級(jí)指標(biāo)直接加總得到的內(nèi)部控制指數(shù)以及用修正的瓊斯模型重新計(jì)算出盈余管理進(jìn)行穩(wěn)健性檢驗(yàn)。結(jié)果發(fā)現(xiàn),我國企業(yè)的內(nèi)部控制越強(qiáng),其應(yīng)計(jì)項(xiàng)目的盈余管理行為越少。據(jù)此,本文提出了兩點(diǎn)政策建議:(1)強(qiáng)制企業(yè)披露由外部第三方出具的內(nèi)控審計(jì)報(bào)告;(2)鼓勵(lì)相關(guān)學(xué)者對(duì)內(nèi)部控制指數(shù)進(jìn)行研究,形成一套比較全面的內(nèi)控評(píng)價(jià)體系。 本文的創(chuàng)新之處在于從內(nèi)部控制目標(biāo)角度切入,在合成的過程中,采用數(shù)據(jù)庫和手工相結(jié)合的方式,對(duì)內(nèi)部控制指數(shù)的合成考慮的比較全面,合成的指數(shù)能夠比較客觀的反映企業(yè)的內(nèi)部控制狀況。
[Abstract]:In recent years, several major companies in the United States have a scandal. In 2002, Enron financial fraud caused a worldwide stir, WorldCom, Xerox after the financial scandal. At the same time. The four major accounting firms are often involved in financial fraud, and it is difficult to get away from it. In China, the Blue Field Securities Fraud case, Yinguangxia's financial performance fraud, and Gome Wong Kwong Yu have been investigated. Toxic milk powder "melamine" incidents and other scandals in recent years let us reflect. In addition to making huge profits, the weakness of internal control is also the earnings management behavior of many well-known enterprises at home and abroad. In order to strengthen the construction of internal control, COSO committee issued a series of related documents from 1992 to 2013. The five elements and five objectives of internal control are constantly modified and perfected. Our country has drawn lessons from foreign experience on internal control of enterprises, combined with the national conditions, has also issued the related requirements of internal control of enterprises in our country. Our country enterprise internal control also enters the mature stage step by step. Earnings management behavior will affect the reliability of financial reports and mislead the users of financial statements to make wrong decisions. The effective internal control of the enterprise will improve the reliability of the financial report and reduce the loss of the stakeholders. Because internal control will "provide reasonable assurance for the reliability of financial report". So, can reasonable internal control prevent earnings management behavior in our country? This paper studies this problem. This paper takes the data of A share listed companies in Shenzhen Stock Exchange in 2012 (excluding St enterprises and financial enterprises) as the research samples, according to the five objectives of internal control. The internal control index is synthesized by the principal component analysis method and the internal control quality is evaluated. The profit separation method is used to measure the earnings management of dependent variables. We use Jones model to regress the maneuverability accrual profit DAand use the absolute value of DA to represent the earnings management level of the company. According to the research content of this paper, we draw lessons from the research methods of domestic and foreign scholars. Establish regression model. Examine the correlation between internal control and earnings management. Then use the 20 secondary indicators under the five primary objectives of internal control to add up the internal control index directly and recalculate the surplus with the modified Jones model. Management is tested for robustness. The results show that. The stronger the internal control of Chinese enterprises, the less earnings management behavior of accrual items. Accordingly, this paper puts forward two policy recommendations: 1) forcing enterprises to disclose internal audit reports issued by external third parties; (2) encouraging relevant scholars to study the internal control index to form a comprehensive evaluation system of internal control. The innovation of this paper is from the perspective of internal control objectives, in the process of synthesis, using the combination of database and manual way, the synthesis of internal control index is considered more comprehensively. The composite index can objectively reflect the internal control situation of the enterprise.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:F275;F276.6;F832.51

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