Does the Gender Composition of Scientific Committees Matter?

We analyze how a larger presence of female evaluators affects committee decision-making using information on 100,000 applications to associate and full professorships in Italy and Spain. These applications were assessed by 8,000 randomly selected evaluators. A larger number of women in evaluation committees does not increase either the quantity or the quality of female candidates who qualify. Information from individual voting reports suggests that female evaluators are not significantly more favorable towards female candidates. At the same time, male evaluators become less favorable towards female candidates as soon as a female evaluator joins the committee