How Does "Pay It Forward" Happen?

A little bit of positive social science to start the summer. Below you can watch a lecture given at the meeting of the American Sociological Association, 2008, on the topic of generalized exchange. An example of the nexus of sociology (e.g., Simmel on exchange and gratitude, social control), anthropology (e.g., norms of reciprocity, altruism), and economics (e.g., laboratory experiments using games).

How Pay it Forward Happens? from sslevine on Vimeo.

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