臺灣博碩士論文加值系統

審計委員會隸屬於公司董事會，其主要職責乃確保公司盈餘品質。近年來國內外一連串知名企業相繼發生管理階層財務舞弊事件，無論在美國沙氏法案或我國相關規範方面，皆增加有關審計委員會財會專家的規定，希望藉由其專業背景加強對公司董事會監督之效率。由此可知，審計委員會專家對公司治理的重要性。再者，隨著日益複雜的商業行為，其會計交易所涉及之許多應遵循的法律規定，皆須仰賴審計委員會各類型專家之專業判斷。因此本研究將探討審計委員會專家類別的組成對盈餘品質的影響。

本研究以2012年至2014年之上市櫃公司中，有設置審計委員會者為樣本研究對象，共計305筆觀察值。透過股東會年報區分董事的專業經驗，並依照Dechow and Dichev (2002)的研究模型中，以估算殘差項的標準差作為衡量盈餘品質之財務指標，探討審計委員會專家類別的組成與盈餘品質二者間的關係。

實證結果發現，台灣上市櫃公司有設置審計委員會且無論其設置期間是否涵蓋連續二年以上者時，當審計委員會成員擁有多位專家身份時，在家族企業樣本中，都對盈餘品質有顯著正相關，意即對盈餘品質有損害之效果；反之，在非家族企業樣本中，對盈餘品質則沒有顯著相關。另外，當審計委員會成員同時具備法律專家及財務或會計專家二者之一時，在家族企業且其審計委員會設置期間涵蓋連續二年以上者，對盈餘品質有損害的效果；反之，在非家族企業中，對盈餘品質則具有提升之效果。

The audit committee is subordinate to the board of directors, whose main function is to ensure the earnings quality of the company. In recent years, a series of well-known enterprises in home and abroad have occurred in the management of financial fraud. According to the U.S. Sarbanes-Oxley Act of 2002 and our relevant norms, both of them have increased financial experts in the audit committee, in hoping to strengthen the the execute efficiency of board of directors by their professional background. Thus, it is clear that the importance of the audit committee experts to corporate governance will be explored. Moreover, with increasingly complex business practices, many of the legal requirements for accounting transactions are subject to the professional judgment of the various types of experts in the audit committee. This study will therefore examine the impact of the composition of experts of the audit committee on earnings quality.

This study uses stock exchange listed companies with audit committee from 2012~2014 as the research sample, total 305 observation units. By using the shareholders annual report to evaluate the experts of professional experience and measuring earnings quality as the standard deviation of residuals from Dechow and Dichev (2002) model, we are able to realize the association between the composition of experts of audit committee and earnings quality.

Results show that when audit committee is composed of more types of experts, the firms with audit committee and whether they are set over 2 years or not which will both damage the earnings quality in family-controlled firms; Conversely, there is no evident difference on earnings quality in non-family-controlled firms. In addition, when audit committee is composed of law expert and either finance or accounting expert and set over 2 years, it appears reverse result to earnings quality in family-controlled firms. But the earnings quality will be promoted in non-family-controlled firms.

目錄
誌謝 II
摘要 III
Abstract IV
目錄 V
圖表目錄 VI
第壹章 緒論 1
第一節 研究背景與動機 1
第二節 研究目的 4
第三節 論文架構 6
第貳章 文獻探討 7
第一節盈餘品質 7
第二節 審計委員會 9
第三節 公司治理 14
第參章 研究設計 16
第一節 假說發展 16
第二節 變數衡量 19
第三節 實證模型 22
第四節 樣本選取 26
第肆章 實證結果 28
第一節 基本資料分析 28
第二節多元迴歸結果 31
第三節其他測試 33
第伍章 結論與建議 42
第一節 研究結論 42
第二節 研究貢獻與管理意涵 43
第三節 研究限制與建議 44
參考文獻 42

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