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  • 學位論文

審計委員會與盈餘管理-以公司避免負盈餘為例

Audit Committee and Earnings Management: A Study of Meeting the Earnings Benchmark Target of Avoiding Losses

指導教授 : 李先莉

摘要


台灣於2007年正式發文規定上市櫃公司需設置審計委員會,且國內外眾多文獻均顯示設置審計委員會後可有效提升公司治理制度,降低盈餘管理情形。但過去文獻鮮少將分類變動盈餘管理納入檢測,因此本研究將應計項目、分類變動及實質盈餘管理一併納入考量,並考慮公司處在小額正盈餘門檻誘因下,審計委員會是否能有效發揮其作用。本研究以台灣2007年至2013年上市櫃公司為樣本,實證結果發現不論在分類變動盈餘管理以及實質盈餘管理方面,有設置審計委員會公司確實能減緩小額正盈餘公司經理人進行盈餘管理之行為。但在應計項目盈餘管理部分則未檢測出此結果。最後,本研究也在公司有小額正盈餘的情況下,對有審計委員會及未設置審計委員會公司進行Wald Test檢定。實證結果也顯示,在有小額正盈餘誘因門檻的情況下,有設置審計委員會公司較未設置審計委員會公司其分類變動、實質盈餘管理幅度會下降。與先前文獻結果雷同,顯示審計委員會的設置確實具有提升公司治理之效果,也能使公司盈餘品質提升。

並列摘要


In 2007, Taiwan amended the Securities and Exchange Act to require listed companies to establish audit committees. Many studies found audit committee can improve corporate governance and reduce earnings management after implementing the audit committee. But prior studies seldom consider the three earnings management tools - classification shifting, discretionary accruals and real activities. Therefore, the purpose of this study is to investigate whether audit committee can effectively limit avoiding losses companies’ earnings management behavior by examining classification shifting, discretionary accruals and real activities. In this study, we used listed companies from 2007 to 2013 in Taiwan as our sample. The empirical results indicate that the avoiding losses companies’ audit committee can reduce earnings management of classification shifting and real activities, but not discretionary accruals. Finally, we use wald test to examine when companies in earnings benchmark target of avoiding losses, whether the companies with audit committee can achieve better earnings quality. Our finding suggests that compare with none audit committee, the companies with audit committee can reduce earnings management of classification shifting and real activities. Same as past studies, audit committee can improve corporate governance and provide a better earnings quality.

參考文獻


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