Humans are an ultrasocial species. This sociality, however, cannot be fully explained by the
canonical approaches found in evolutionary biology, psychology, or economics …

Direct and indirect reciprocity are two fundamental mechanisms that promote prosocial
behavior within groups and across societies. Here, we review recent work that illustrates …

Social decision making is a highly complex process that involves diverse cognitive
mechanisms, and it is driven by the precise processing of information from both the …

Two studies investigated the development and motivations underlying children's upstream
reciprocity. In Study 1, 3-and 4-year-olds (n= 40 per age group) received or did not receive …

Recent research has shown that preschool children tend to preferentially allocate resources
to rich than to poor others. The findings that young children tend to perpetuate inequalities …

Employee cheating at the workplace has reached epidemic proportions and is putting a
significant dent on the revenues of corporations. This study evaluates workplace cheating …

In the human mind, what is a social relationship, and what are the developmental origins of
this representation? I consider findings from infant psychology and propose that our …

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

In terrestrial mammals, body volatiles can effectively trigger or block conspecific aggression.
Here, we tested whether hexadecanal (HEX), a human body volatile implicated as a …

This study experimentally compared the effects of encouragement with polite/impolite
attitudes from a robot in a monotonous task from three viewpoints: performance, mood, and …