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A Cooperative Species: Human Reciprocity and Its Evolution

Online ISBN:
9781400838837
Print ISBN:
9780691151250
Publisher:
Princeton University Press
Book

A Cooperative Species: Human Reciprocity and Its Evolution

Samuel Bowles,
Samuel Bowles
Santa Fe Institute
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Herbert Gintis
Herbert Gintis
University of Massachusetts
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Published:
20 June 2011
Online ISBN:
9781400838837
Print ISBN:
9780691151250
Publisher:
Princeton University Press

Abstract

Why do humans, uniquely among animals, cooperate in large numbers to advance projects for the common good? Contrary to the conventional wisdom in biology and economics, this generous and civic-minded behavior is widespread and cannot be explained simply by far-sighted self-interest or a desire to help close genealogical kin. This book shows that the central issue is not why selfish people act generously, but instead how genetic and cultural evolution has produced a species in which substantial numbers make sacrifices to uphold ethical norms and to help even total strangers. The book describes how, for thousands of generations, cooperation with fellow group members has been essential to survival. Groups that created institutions to protect the civic-minded from exploitation by the selfish flourished and prevailed in conflicts with less cooperative groups. Key to this process was the evolution of social emotions such as shame and guilt, and our capacity to internalize social norms so that acting ethically became a personal goal rather than simply a prudent way to avoid punishment. Using experimental, archaeological, genetic, and ethnographic data to calibrate models of the coevolution of genes and culture as well as prehistoric warfare and other forms of group competition, the book provides a compelling and novel account of human cooperation.

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