本研究旨在探討董事會特性對企業盈餘品質之影響，並進一步分析家族企業是否對此關係產生調節作用。以2010年至2022年間臺灣上市櫃公司為研究樣本。實證發現，外部董事比例與董事平均任期與盈餘品質呈顯著正相關，顯示董事會的獨立性與穩定性有助於強化其監督功能，有效抑制盈餘操縱行為；此關係在家族企業中仍成立。相對地，具財會法專業背景、女性董事比例與教育程度則與盈餘品質呈負相關，且在家族企業情境下，其監督效果更為弱化，顯示家族企業可能削弱部分董事會特性的治理效能。綜合而言，董事會特性對盈餘品質具有多面向的影響，企業的股權結構亦對董事會功能的發揮產生影響。
關鍵字: 董事會特性、盈餘品質、家族企業、女性董事、公司治理

This study investigates the impact of board characteristics on earnings quality and further examines whether family ownership moderates this relationship. Using a sample of publicly listed firms in Taiwan from 2010 to 2022, the empirical results reveal that both the proportion of independent directors and average board tenure are positively associated with earnings quality. This suggests that board independence and stability enhance oversight functions and help constrain earnings manipulation—an effect that remains significant within family firms. Conversely, the proportions of directors with financial, legal, or accounting expertise, female board members, and higher education levels are negatively associated with earnings quality. These relationships are further weakened in the context of family firms, indicating that family control may impair the governance effectiveness of certain board attributes. Overall, the findings demonstrate the multifaceted influence of board characteristics on earnings quality and highlight the important role of ownership structure in shaping board functionality.
Keywords: Board characteristics, Earnings quality, Family firms, Female Directors, Corporate Governance

論文審訂書 i
摘要 ii
Abstract iii
第一章 緒論 1
第二章 文獻與假說設定 3
2.1 盈餘管理 3
2.2 董事會的職能與特性 4
2.3 董事會特性與盈餘品質 5
第三章 研究方法 8
3.1 樣本資料來源及選取 8
3.2 盈餘品質之衡量 11
3.3 解釋變數之衡量 12
3.4 控制變數之衡量 13
3.5 實證模型 16
第四章 實證結果 18
4.1 敘述統計分析 18
4.2 相關係數分析 19
4.3 迴歸估計結果 22
第五章 結論 29
參考文獻 31

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