social preferences. We find that second born children are typically less patient, less risk averse, and more trusting …. However, siblings’ sex composition interacts importantly with birth order effects. Second born children are more risk taking …

children, adolescents, and adults. In this paper, we use novel data on 4,282 siblings aged 6 to 16 that combine incentivized … standard cross-sectional specifications, our results confirm the predictive power of children's preferences for behavior … siblings, this predictive power largely vanishes. We discuss implications for research on children's preferences and behavior. …