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....

Although the gender gap in entrepreneurs' success rates to secure funding is staggering, we know little about its causes. This is because observing both sides of investor-entrepreneur interactions (especially for unsuccessful pitches) is difficult in reality, and the associated extraordinary...

People are generally assumed to shy away from activities generating stochastic rewards, thus requiring extra compensation for handling any additional risk. In contrast with this view, neuroscience research with animals has shown that stochastic rewards may act as a powerful motivator. Applying...

This paper provides strong evidence supporting the long-standing speculation that decision-making in groups has a dark side, by magnifying the prevalence of anti-social behavior towards outsiders. A large-scale experiment implemented in Slovakia and Uganda (N=2,309) reveals that deciding in a...

In a laboratory experiment we test the interaction effects of status and group identity on interpersonal trust. Natural group identity is generated by school affiliation. Status (expert or agent) is awarded based on relative performance in a math quiz that is ex ante less favorable to the...

Social media has made anonymized behavior online a prevalent part of many people's daily interactions. The implications of this new ability to hide one's identity information remain imperfectly understood. Might it be corrosive to human cooperation? This paper investigates the possibility that a...

Using a series of sender-receiver games, we find that two senders acting together are willing to behave more antisocially towards the receiver than single senders. This result is robust in two contexts: when antisocial messages are dishonest and when they are honest but unfavorable. Our results...