Studying competitiveness and risk-taking among Jeopardy! contestants in the US, this paper analyzes whether and how gender differences emerge with age and by gender of opponent. Our samples contain 186 children (aged 10–12), 310 teenagers (aged 13–17), and 299 undergraduate college students....

We explore the effects of a randomly assigned conditional cash transfer in Honduras (Bono 10000) on early childhood development. We find significant impacts on cognitive development in children 0-60 months, with an average effect size of 0.13 SD. We show differential impacts by type of transfer:...