Social psychologists attempt to explain how we interact by appealing to basic principles of
how we think. To make good on this ambition, they are increasingly relying on an …

Moralizing religions, unlike religions with morally indifferent gods or spirits, appeared only
recently in some (but not all) large-scale human societies. A crucial feature of these new …

A scientist integrates evolutionary biology, genetics, psychology, economics, and more to
explore the development and workings of human societies.“There is no good reason why …

What makes humans moral beings? This question can be understood either as a proximate
“how” question or as an ultimate “why” question. The “how” question is about the mental and …

Classic studies in developmental psychology demonstrate a relatively late development of
equity, with children as old as 6 or even 8–10 years failing to follow the logic of merit—that …

Our goal in this paper is to use an evolutionary approach to explain the existence and
design features of human moral cognition. Our premise is that humans are under selection …

The domain of “folk-economics” consists in explicit beliefs about the economy held by
laypeople, untrained in economics, about such topics as, for example, the causes of the …

Cooperation between organisms can often be understood, like trade between merchants, as
a mutually beneficial exchange of services, resources or other 'commodities'. Mutual benefits …

Human expression is open-ended, versatile, and diverse, ranging from ordinary language
use to painting, from exaggerated displays of affection to micro-movements that aid …

Two factors that promote cooperation are partner choice and punishment of defectors, but
which option do people actually prefer to use? Punishment is predicted to be more common …