When one individual helps another, it benefits the recipient and may also gain a reputation
for being cooperative. This may induce others to favour the helper in subsequent …

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 …

Abstract Third-party punishment (TPP),,,,,,, in which unaffected observers punish selfishness,
promotes cooperation by deterring defection. But why should individuals choose to bear the …

This paper suggests that advertising campaigns directed at increasing consumer demand
for green energy should emphasize not only environmental concern and utilitarian benefits …

The widespread existence of cooperation is difficult to explain because individuals face
strong incentives to exploit the cooperative tendencies of others. In the research reported …

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 …

Why do people purchase proenvironmental “green” products? We argue that buying such
products can be construed as altruistic, since green products often cost more and are of …

Where did we come from? What is our connection with other life forms? What are the
mechanisms of mind that define what it means to be a human being? Evolutionary …

Can we better understand modern consumer behavior by examining its links to our ancestral
past? We consider the underlying motives for consumption and choice from an evolutionary …

When organisms can choose whom to interact with, it can create a biological market where
individuals need to outbid their rivals for access to cooperative relationships. Each …