We study the developmental roots of cooperation in 929 young children, aged 3 to 6. In a unified experimental framework, we examine pre-registered hypotheses about which of three fundamental pillars of human cooperation - direct reciprocity, indirect reciprocity, and third-party punishment -...

We use novel data on nearly 6,000 children and adolescents aged 6 to 16 that combine incentivized measures of social, time, and risk preferences with rich information on child behavior and family environment to study whether children's economic preferences predict their behavior. Results from...

We study the relationship between parenting style and a broad range of children’s skills and outcomes. Based on survey and experimental data from 5,580 children and their parents, we find that children exposed to positive parenting have higher IQs, are more altruistic, open to new...

We study the relationship between parenting style and a broad range of children's skills and outcomes. Based on survey and experimental data from 5,580 children and their parents, we find that children exposed to positive parenting have higher IQs, are more altruistic, open to new experiences,...

In a democracy, it is essential that citizens accept rules and laws, regardless of which party is in power. We study why citizens in polarized societies resist rules implemented by political opponents. This may be due to the rules’ specific content, but also because of a general preference...

In a democracy, it is essential that citizens accept rules and laws, regardless of which party is in power. We study why citizens in polarized societies resist rules implemented by political opponents. This may be due to the rules' specific content, but also because of a general preference...

Incentives are supposed to increase effort, yet individuals react differently to incentives. We examine this heterogeneity by investigating how personal characteristics, preferences, and socio-economic background relate to incentives and performance in a real effort task. We analyze the...