Prosocial behavior covers the broad range of actions intended to benefit one or more people
other than oneself—actions such as helping, comforting, sharing, and cooperation. Altruism
is motivation to increase another person's welfare; it is contrasted to egoism, the motivation
to increase one's own welfare. There is no one‐to‐one correspondence between prosocial
behavior and altruism. Prosocial behavior need not be motivated by altruism; altruistic
motivation need not produce prosocial behavior. Over the past 30 years, the practical …