近年來，企業對於 LGBT 族群之友善政策日益受到學術界與實務界的重視，有文獻多聚焦於其對財務績效與勞動生產力之影響。本研究以美國人權戰線基金會 (HRC) 每年發布之企業平等指數 (Corporate Equality Index, CEI) 作為衡量企業 LGBT 友善政策實踐程度之指標，探討其對職場安全之間的關聯性。
以 2003 年至 2022 年間 692 家美國上市公司、共 5,507 筆公司年度觀測值為樣本，採含產業與年度固定效果之普通最小平方法進行估計。實證結果顯示，CEI 評分與職場安全違規次數、罰款金額及違規發生機率均呈顯著負向關係，且在子樣本分析以及穩健性檢驗後結果依然成立。本研究結果顯示 CEI 與職場安全違規次數、罰款金額及違規發生機率呈顯著負向關聯，顯示 LGBT 友善政策可能是改善職場安全表現的有效治理工具，亦為企業社會責任與職場安全交叉領域的研究提供新的實證依據。

In recent years, LGBT-friendly corporate policies have received growing attention from both academics and practitioners, with existing literature largely focusing on their associations with firm financial performance and labor productivity. This study employs the Corporate Equality Index (CEI), published annually by the Human Rights Campaign Foundation (HRC), as a measure of firms' commitment to LGBT-friendly policies, and examines its association with workplace safety outcomes.
Using a sample of 692 U.S. publicly listed companies with 5,507 firm-year observations over the period 2003 to 2022, we employ ordinary least squares estimation with industry and year fixed effects. Empirical results indicate that CEI scores are significantly and negatively associated with the frequency of workplace safety violations, penalty amounts, and the probability of violations occurring, with findings remaining robust across subsample analyses and robustness checks. These findings suggest that LGBT-friendly policies may serve as an effective governance tool for improving workplace safety performance and providing new empirical evidence for the intersection of corporate social responsibility and workplace safety research.

目錄
論文審定書 i
誌謝 .ii
中文摘要 ..iii
Abstract ..iv
目錄 v
表目錄 .vii
第一章 緒論 ..1
1-1研究動機 1
1-2研究目的 2
1-3研究架構 2
第二章 文獻回顧與假說建立 3
2-1 LGBT 3
2-2職場安全 4
2-3假說建立 6
第三章 研究方法 8
3-1樣本介紹 8
3-2變數介紹 10
3-2-1解釋變數：企業平等指數 (CEI) 10
3-2-2應變數：職場安全違規 10
3-3模型介紹 11
第四章 實證結果與分析 12
4-1敘述性統計量 12
4-2主回歸分析結果 12
4-3子樣本分析 14
4-3-1機構持股比例 14
4-3-2財務限制 15
4-4 內生性檢驗 16
4-5穩健性檢驗 16
第五章 結論 18
參考文獻 19

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