Children act prosocially already in their first years of life. Research has shown that this early
prosociality is mostly motivated by sympathy for others, but that, over the course of …

Cooperation is widespread in nature, occurring in every taxa on Earth. Nevertheless, the
contexts in which cooperation occurs—and the forms it takes—vary widely. In this Review …

We investigated children's positive emotions as an indicator of their underlying prosocial
motivation. In Study 1, 2‐, and 5‐year‐old children (N= 64) could either help an individual or …

Performing costly helpful behaviours can allow individuals to improve their reputation. Those
who gain a good reputation are often preferred as interaction partners and are consequently …

The current study investigated whether children share especially much with their friends
when sharing can be reciprocated (strategic sharing) or whether friendship and strategic …

We tested whether children growing up in the Dominican Republic (DR), a context with
relatively high governmental corruption levels, would support versus distance themselves …

Children sometimes show positive emotions in response to seeing others being helped, yet
it remains poorly understood whether there is a strategic value to such emotional …

Can children exploit knowledge asymmetries to get away with selfishness? This question
was addressed by testing 6‐to 9‐year‐old children (N= 164; 81 girls) from the Northeastern …

Humans frequently benefit others strategically to elicit future cooperation. While such forms
of calculated reciprocity are powerful in eliciting cooperative behaviors even among self …

Individuals engage in reputation management by adjusting their behaviour in front of others.
As gossip plays an important role in human society, individuals need to concern themselves …