What is morality? And to what extent does it vary around the world? The theory of “morality-
as-cooperation” argues that morality consists of a collection of biological and cultural …

What is morality, where does it come from, and how does it work? Scholars have struggled
with these questions for millennia. But we now have a scientific answer. The theory of …

Understanding the proximate and ultimate sources of human cooperation is a fundamental
issue in all behavioural sciences. In this paper, we review the experimental evidence on …

In order to describe the logic of morality," contractualist" philosophers have studied how
individuals behave when they choose to follow their moral intuitions. These individuals …

Across the social sciences, a key question is how societies manage to enforce cooperative
behavior in social dilemmas such as public goods provision or bilateral trade. According to …

Human morality is a key evolutionary adaptation on which human social behavior has been
based since the Pleistocene era. Ethical behavior is constitutive of human nature, we argue …

From an evolutionary perspective, morality is a form of cooperation. Cooperation requires
individuals either to suppress their own self-interest or to equate it with that of others. We …

Moral Sentiments and Material Interests presents an innovative synthesis of research in
different disciplines to argue that cooperation stems not from the stereotypical selfish agent …

This paper provides strong evidence challenging the self-interest assumption that dominates
the behavioral sciences and much evolutionary thinking. The evidence indicates that many …

Human cooperation remains a puzzle because it persists even in contexts where traditional
theories predict it should not do so (ie among unrelated strangers, who never meet again …