We show the math gender gap is correlated with women's career outcomes using international geographic data on the investment profession, a math-intensive and 80% male profession. The math gender gap predicts the proportion of investment professionals who are women across countries and across...

When two people coincidentally have something in common (such as a name or birthday), they tend to like each other more and are thus more likely to offer help and comply with requests. This dynamic can have important legal and ethical consequences whenever these incidental similarities give rise...