In 1995, the Swedish government reformed the parental leave system with the view to increase the share of fathers in child care, change gender roles in society, and improve the chances of mothers in the labor market. We investigate a unique data set comprising the entire population of Swedish...

This paper studies cooperation and social screening among expert chess players. It employs a large international panel dataset with controls for fixed effects, age, sex, nationality and playing strength where the latter accounts for productivity differences. With a female share below 15 percent...