%0 Report %A Brenøe, Anne Ardila %T Origins of Gender Norms: Sibling Gender Composition and Women's Choice of Occupation and Partner %D 2018 %8 2018 Jul %I Institute of Labor Economics (IZA) %C Bonn %7 IZA Discussion Paper %N 11692 %U https://www.iza.org/index.php/publications/dp11692 %X I examine how one central aspect of the childhood family environment – sibling gender composition – affects women's gender conformity, measured through their choice of occupation and partner. Using Danish administrative data, I causally estimate the effect of having a second-born brother relative to a sister for first-born women. The results show that women with a brother acquire more traditional gender norms with negative consequences for their labor earnings. I provide evidence of increased gender-specialized parenting in families with mixed-sex children, suggesting a stronger transmission of traditional gender norms. Finally, I find indications of persistent effects to the next generation of girls. %K occupational choice %K sibling gender %K gender identity %K family formation