We present evidence on the role of the social environment for the development of gender differences in competitiveness and earnings expectations. First, we document that the gender gap in competitiveness and earnings expectations is more pronounced among adolescents with low socioeconomic status...

I offer a way out of the Taubman-Goldberger controversy on the public policy (ir)relevance of heritability studies by arguing for a quasi-experimentally controlled comparison of the estimates that these studies provide. If the environments individuals are exposed to are under such control,...