臺灣博碩士論文加值系統

本研究目的在研究探討新冠肺炎(COVID-19)發生與實質盈餘管理之關聯性。本研究樣本為2014年至2021年台灣上市、櫃、興櫃公司，實質盈餘管理指標則是參照Cohen, Dey, & Lys(2008)之作法，以標準化異常營運活動現金流量、標準化異常生產成本及標準化異常裁決性支出，結合成實質盈餘管理綜合指標，取其變動數絕對值，作為衡量企業實質盈餘管理行為改變之代理變數。實證結果顯示，實質盈餘管理綜合指標變動數絕對值與新冠肺炎期間虛擬變數呈顯著正相關，亦即代表與非新冠肺炎期間相比，新冠肺炎期間公司會顯著增加實質盈餘管理行為。本研究另外進行了四項敏感性測試，一、測試變數改以保留截距項估計，二、僅侷限在2018-2021年之樣本數測試，三、區分為正值及負值次樣本測試，四、區分為電子業及非電子業次樣本測試，除了在電子業次樣本測試不顯著外，其餘測試得到的結論皆與主測試結果相似。

The purpose of this study is to investigate the relationship between the COVID-19 and companies' real earnings management behavior. The sample of this study is Taiwan's listed and OTC companies from 2014 to 2021. Following Cohen, Dey, & Lys (2008), this study combine the standardized abnormal operating cash flows, standardized abnormal production costs and standardized abnormal discretionary expenses into a comprehensive index of real earnings management. This study take the absolute value of the change in comprehensive real earnings management index as a proxy variable to measure the change of the company's real earnings management behavior.
The empirical result shows that the COVID-19 dummy variable exhibited a positive correlation with the change of the company's real earnings management behavior, indicating that during the COVID-19 pandemic, listed companies made more use of real earnings management. In addition, this study conducts four additional sensitivity tests. First, using the Model with the intercept term to re-estimate the real earnings management change index. Second, subsample from 2018 to 2021 test. Third, positive value and negative value subsample tests. Fourth, electronic industry /non-electronic industry subsample tests. Except for electronic industry subsample test, the conclusions of these additional sensitivity tests are similar to the main test results.

摘要
目錄
圖、表及附錄目錄
第一章 緒論
第一節 研究動機及目的
第二節 研究目的
第三節 研究架構
第二章 文獻探討
第一節 新冠肺炎相關文獻
第二節 盈餘管理相關文獻
第三節 實質盈餘管理相關文獻
第三章 研究方法
第一節 研究假說
第二節 變數定義與衡量
第三節 實證模式
第四節 研究期間、資料來源及樣本選取
第四章 實證結果與分析
第一節 敘述性統計量
第二節 相關係數分析
第三節 實證結果分析
第四節 敏感性分析
第五章 結論與建議
第一節 研究結論
第二節 研究限制
第三節 後續研究與建議
參考文獻
中文部份
英文部份

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