Abstract
Purpose This study aims to investigate the impact of top management team (TMT)'s gender diversity on corporate social performance (CSP). It sheds light on inconsistent results in literature by testing the moderator effects of chief executive officer (CEO) managerial ability and corporate governance (CG) on such impact. Design/methodology/approach A dynamic panel estimator is applied to an international sample of 8640 firm-year observations from 2013 to 2017. Findings The author finds reliable evidence that the critical mass of at least three women leaders has a positive impact on the firm's CSP. Obtained results suggest, moreover, the deterrence effects of CEO managerial ability and CG tools (board independence, board gender diversity, the presence of a corporate social responsibility committee and family control) on the women leaders' contribution to the firm's CSP level. These results remain consistent with alternative measures for women leaders and CEO managerial ability. However, findings are lost when women achieve the CEO position, the chairperson position or both positions, which imply that men and women leadership styles are closely similar rather than different. Furthermore, women leaders' effect on CSP seems dependent (do not) on the country (industry) which a firm belongs to. Practical implications From a practical standpoint, the study highlights the importance of fostering the achievement of a critical mass of women leaders and the combination of CEO managerial ability - educational/professional backgrounds - and CG attributes to improve the firm's CSP. The study has important implications for investors and regulators. If investors wish to increase CSP, they should ask for more gender diversified TMTs. Furthermore, this study supports regulators in their efforts to increase senior women's quotas by providing empirical evidence of better social outcomes under leader gender diversity. The study's evidence is also useful for companies in setting the criteria to identify CEOs who can support their strategic decisions. Originality/value By studying the impact female leaders have on CSP under CEO managerial ability and CG as moderators, this study is the first to display complementarities and substitutions between CEO's managerial ability and selected CG attributes in the promotion of CSP by female senior executives. Furthermore, it fills the void on how TMT's gender diversity impact CSP. In fact, while it is conventionally considered that women are more likely to engage in socially responsible activities, sensitive findings of this study shed light on the brighter side of female executives when they achieve the CEO, the chairperson position or both positions.