本研究探討臺灣上市及上櫃公司董事會中，女性董事佔比性與公司勞動訴訟發生頻率之關聯性。本文使用臺灣經濟新報（TEJ）資料庫，2010年至2020年期間資料進行實證分析，主要結果發現女性董事佔比與公司勞動訴訟發生率呈現顯著負面影響。此外為排除內生性問題對估計結果的影響，本文分別使用工具變數法以及傾向匹配評分法，對上述主要結果進行穩健性測試，其中基於相關文獻建議，以同產業中女性董事數量佔所有董事數量之比率做為工具變數。本研究發現在利用傾向匹配評分法，除去公司特徵與時間層面可能造成的影響下，女性董事佔比與公司勞動訴訟發生率依舊呈現顯著負面影響。然而在工具變數法下，雖然前者依然對後者呈現負向影響，但顯著性不足。基於對工具變數適切性的檢定結果發現，此顯著性不足結果可能來源於，所使用工具變數在本文探討之議題下參考性不足所造成。

This study investigates the relationship between the proportion of female directors on the board and the frequency of labor lawsuits in Taiwanese listed companies. This paper uses the data from Taiwan Economic Journal (TEJ), which covers from 2010 to 2020. The main results show that the proportion of female directors has a significant negative impact on the incidence of labor lawsuits. In addition, in order to exclude the influence of endogeneity on the estimated results, this paper uses the instrumental variable method and the propensity score matching method to test the robustness of the above main results. According to related literature, the proportion of the number of female directors on all directors in the same industry is used as an instrumental variable. We find that the proportion of female directors still has a significant negative effect on the incidence of labor lawsuits after using the propensity score matching method to remove the possible effect from firm characteristics and time. However, under the instrumental variable method, the former still has a negative effect on the latter, but the effect becomes insignificant. The insignificance may be due to the fact our instrumental variable is not sufficiently informative in the context of the issues studied in this paper based on the weak instrumental variable test.

Adams, R.B., Funk, P., 2012. Beyond the glass ceiling: Does gender matter? Management Science 58, 219-235.

Adhikari, B. K. 2017. Female executives and corporate cash holdings. Applied Economics Letters, 25(13): 958-963.

Adams, R.B., Licht, A.N., Sagiv, L., 2011. Shareholders and stakeholders: How do directors decide? Strategic Management Journal 32, 1331-1355.

Adhikari, B.K., Agrawal, A., Malm, J., 2019. Do women managers keep firms out of trouble? Evidence from corporate litigation and policies. Journal of Accounting and Economics 67, 202-225.

Bear, S., Rahman, N., Post, C., 2010. The impact of board diversity and gender composition on corporate social responsibility and firm reputation. Journal of Business Ethics 97, 207-221.

Bazel-Shoham, O., Almor, T., & Lee, S. M. 2018. The effect of board gender diversity on R&D. Paper presented at the 2018 Engaged Management Scholarship Conference, Philadelphia, PA.

Chen, J., Leung, W.S., Evans, K.P., 2016b. Are employee-friendly workplaces conducive to innovation? Journal of Corporate Finance 40, 61-79.

Cohen, J.R., Pant, L.W., 1998. The effect of gender and academic discipline diversity on the ethical evaluations, ethical intentions and ethical orientation of potential public accounting recruits. Accounting Horizons 12, 250-270.

Cumming, D., Leung, T.Y., Rui, O., 2015. Gender diversity and securities fraud. Academy of Management Journal 58, 1572-1593.

Chen, S., Ni, X., & Tong, J. Y. 2016. Gender diversity in the boardroom and risk management: A case of R&D investment. Journal of Business Ethics, 136(3): 599- 621.

Donaldson, T., Preston, L.E., 1995. The stakeholder theory of the corporation: Concepts, evidence, and implications. Academy of Management Review 20, 65-91.

Eagly, A.H., Johnson, B.T., 1990. Gender and leadership style: A meta-analysis. Psychological Bulletin 108, 233-256.

Edmans, A., 2011. Does the stock market fully value intangibles? Employee satisfaction and equity prices. Journal of Financial Economics 101, 621-640.

Eckel, C. C., & Grossman, P. J. 2008. Differences in the economic decisions of men and women: Experimental evidence. Handbook of Experimental Economics Results, 1: 509-519.

Gul, F.A., Srinidhi, B., Ng, A.C., 2011. Does board gender diversity improve the informativeness of stock prices? Journal of Accounting and Economics 51, 314-338.

Guiso, L., Sapienza, P., Zingales, L., 2015. The value of corporate culture. Journal of Financial Economics 117, 60-76.

Huang, J., Kisgen, D.J., 2013. Gender and corporate finance: Are male executives overconfident relative to female executives? Journal of Financial Economics 108, 822-839

Ibrahim, N., Angelidis, J., Tomic, I., 2009. Managers’ attitudes toward codes of ethics: Are there gender differences? Journal of Business Ethics 90, 343-353.

Jensen, M.C., 2010. Value maximization, stakeholder theory, and the corporate objective function. Journal of Applied Corporate Finance 22, 32-42.

Jones, T.M., 1995. Instrumental stakeholder theory: A synthesis of ethics and economics. Academy of Management Review 20, 404-437.

Loukil, N., & Yousfi, O. 2016. Does gender diversity on corporate boards increase risk-taking? Canadian Journal of Administrative Sciences, 33(1): 66-81.

Levi, M., Li, K., Zhang, F., 2014. Director gender and mergers and acquisitions. Journal of Corporate Finance 28, 185-200.

Lanis, R., Richardson, G., Taylor, G., 2015. Board of director gender and corporate tax aggressiveness: An empirical analysis. Journal of Business Ethics, 1-20

Niederle, M., Vesterlund, L., 2007. Do women shy away from competition? Do men compete too much? Quarterly Journal of Economics 122, 1067-1101.

Rossi, F., & Cebula, R. J. 2015. Does the board of directors affect the extent of corporate R&D? Evidence from Italian listed companies. Economics Bulletin, 35(4): 2567-2580.

Simga-Mugan, C., Daly, B.A., Onkal, D., Kavut, L., 2005. The influence of nationality and gender on ethical sensitivity: An application of the issue-contingent model. Journal of Business Ethics 57, 139-159.

Sial, M. S., Vo, X. V., Al-Haddad, L., & Trang, T. N. 2019. Impact of female directors on the board and foreign institutional investors on earning manipulation of Chinese listed companies. AsiaPacific Journal of Business Administration, 11(3): 288-300.

Schubert, R., Brown, M., Gysler, M., & Brachinger, H. W. 1999. Financial decision-making: are women really more risk-averse? American Economic Review, 89(2): 381-385.

Sunden, A. E., & Surette, B. J. 1998. Gender differences in the allocation of assets in retirement savings plans. American Economic Review, 88(2): 207-211.

Torchia, M., Calabrò, A., Huse, M., 2011. Women directors on corporate boards: From tokenism to critical mass. Journal of Business Ethics 102, 299-317.

Zeng, S., & Wang, L. 2015. CEO gender and corporate cash holdings: Are female CEOs more conservative? Asia-Pacific Journal of Accounting and Economics, 22(4): 449-474.