Since the 1990s, a growing body of research has sought to quantify the relationship between women's representation in leadership positions and organizational financial performance. Commonly known as the "business case" for women's leadership, the idea is that having more women leaders is good for business. Through meta-analysis (k = 78, n = 117,639 organizations) of the direct effects of women's representation in leadership (as CEOs, on top management teams, and on boards of directors) on financial performance, and tests that proxy theoretical arguments for moderated relationships, we call attention to equivocal findings. Our results suggest women's leadership may affect firm performance in general and sales performance in particular. And women's leadership-overall and, specifically, the presence of a female Acknowledgments: This article was accepted under the editorship of Patrick M. Wright. The authors would like to acknowledge Eddy Ng's helpful comments on an earlier version of this manuscript and Marcus Butts' valuable advice on continuous moderator testing in meta-analysis. The conceptual ideas behind our research critique received a Best Paper in Track Award at the 2013 Equality, Diversity, and Inclusion Conference. This research was supported by a grant (No.