Experimental games model situations in which the future outcomes of individuals and
groups depend on their own choices and on those of other (groups of) individuals. Games …

Across human societies, people are sometimes willing to punish norm violators. Such
punishment can take the form of revenge from victims, seemingly altruistic intervention from …

Norm enforcement may be important for resolving conflicts and promoting cooperation.
However, little is known about how preferred responses to norm violations vary across …

The emergence of COVID-19 dramatically changed social behavior across societies and
contexts. Here we study whether social norms also changed. Specifically, we study this …

Global challenges like the climate crisis and pandemic outbreaks require collective
responses where people quickly adapt to changing circumstances. Social norms are …

Human prosociality has been traditionally explained in the social sciences in terms of
internalized social norms. Recent neuroscientific studies extended this traditional view of …

Punishing wrongdoers is beneficial for group functioning, but can harm individual well-
being. Building on research demonstrating that punitive motives underlie free will beliefs, we …

Injunctive social norms are societal standards for how people are expected to behave. When
individuals transgress these norms, they face social sanctions for their behavior. These …

Punishment of offenders is one of the most universal features of human behavior. Across
time and cultures it has been common for people to punish offenders, and one can easily …

The ultimatum game is a common economic experiment in which some participants reject
another's unfair offer of how to split some money, even though it leaves them both worse off …