Exploring the mechanisms.

We examine the gender gap in faculty promotion at the University of Geneva. After building a new measure of research quality that has no gender bias (i.e. men and women have, on average, the same level of research quality after we control for disciplines), we find that conditional on research quality, discipline and place where the PhD was obtained, women are 11 percent less likely to get promoted. The gender gap is almost three times larger for promotion from assistant to associate professor, suggesting that the mechanism at play is stronger for junior faculty. The gender gap is explained by the fact that an equal increase in research quality leads to a smaller increase in women’s probability of promotion.