Foundations of Human Sociality: Economic Experiments and Ethnographic Evidence from Fifteen Small-scale Societies

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Assistant Professor of Anthropology Joseph Henrich, Joseph Patrick Henrich, Robert Boyd, Professor of Pediatrics Robert Boyd, Samuel Bowles, Ernst Fehr, Professor of Economics and Director of the Institute for Empirical Research in Economics Ernst Fehr, Colin Camerer, Herbert Gintis
Oxford University Press, 2004 - Psychology - 451 pages
What motives underlie the ways humans interact socially? Are these the same for all societies? Are these part of our nature, or influenced by our environments? Over the last decade, research in experimental economics has emphatically falsified the textbook representation of Homo economicus.Hundreds of experiments suggest that people care not only about their own material payoffs, but also about such things as fairness, equity, and reciprocity. However, this research left fundamental questions unanswered: Are such social preferences stable components of human nature, or are theymodulated by economic, social, and cultural environments? Until now, experimental research could not address this question because virtually all subjects had been university students. Combining ethnographic and experimental approaches to fill this gap, this book breaks new ground in reporting theresults of a large cross-cultural study aimed at determining the sources of social (non-selfish) preferences that underlie the diversity of human sociality. In this study, the same experiments carried out with university students were performed in fifteen small-scale societies exhibiting a widevariety of social, economic, and cultural conditions. The results show that the variation in behaviour is far greater than previously thought, and that the differences between societies in market integration and the importance of cooperation explain a substantial portion of this variation, whichindividual-level economic and demographic variables could not. The results also trace the extent to which experimental play mirrors patterns of interaction found in everyday life. The book includes a succinct but substantive introduction to the use of game theory as an analytical tool, and to itsuse in the social sciences for the rigorous testing of hypotheses about fundamental aspects of social behaviour outside artificially constructed laboratories. The editors also summarize the results of the fifteen case studies in a suggestive chapter about the scope of the project.
 

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Contents

1 Introduction and Guide to the Volume
1
2 Overview and Synthesis
8
A Guide for Social Scientists
55
A Case from the Ecuadorian Amazon
96
5 Comparative Experimental Evidence from Machiguenga Mapuche Huinca and American Populations
125
The Hadza of Tanzania
168
7 Does Market Exposure Affect Economic Game Behavior? The Ultimatum Game and the Public Goods Game among the Tsimane of Bolivia
194
Results from a TwoVillage Ultimatum Game Experiment
232
An Experimental Investigation
305
The Sangu of Tanzania
335
Evidence from Ultimatum Dictator and Public Goods Experiments in East Africa
356
13 Economic Experiments to Examine Fairness and Cooperation among the Ache Indians of Paraguay
382
14 The Ultimatum Game Fairness and Cooperation among Big Game Hunters
413
Michael S AlvardAppendix
436
Index
439
Copyright

Results from Khovdiin Bulgan Sum Mongolia
260

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About the author (2004)


Joseph Henrich is Assistant Professor in the Department of Anthropology at Emory University. As a theorist, experimentalist and ethnographer, Henrich's work spans Anthropology, Biology, and Economics, and he has published in the leading journals in all three fields. As a field worker, he has conducted research in Peru (Amazonia), Chile, the US, and Fiji. Samuel Bowles is Professor in the Faculty of Economics at the University of Siena, and Professor Emeritus of Economics at the University of Massachusetts, Amherst. He has also been Professor of Economics at Harvard. He is Director of the Economics Program at the Santa Fe Institute, and Co-Coordinator of its Research Program in Culture and Evolutionary Dynamics. Robert Boyd is Professor of Anthropology at UCLA. He has also been Assistant Professor at Emory University and Duke University. He is a member of the editorial board of Quantitative Anthropology, Associate Editor for Evolution and Human Behaviour, and Co-director of the McArthur Foundation Preferences Project. He has published numerous articles and has co-authored two books on human evolution. Colin Camerer is the Axline Professor of Business Economics at Caltech (in Pasadena, California), where he teaches both psychology and economics. He worked at Kellogg, Wharton, and Chicago business schools before Caltech. He is the co-author or editor of three books, and the author of Behavioral Game Theory (Princeton, 2003). Camerer was the first behavioral economist to become a Fellow of the Econometric Society, in 1999, and was the president of the Economic Science Association from 2001 to 2003. Ernst Fehr is Professor of Economics and Director of the Institute for Empirical Research in Economics at the University of Zürich. He is also Director of the Ludwig Boltzmann Institute for the Analysis of Economic Growth, and a Fellow of CEPR and CESifo. In September 1999 he was awarded the prestigious Gossen prize of the German Economic Association (Verein für Socialpolitik). Herbert Gintis is a member of the External Faculty of the Santa Fe Institute, Professor Emeritus of Economics at the University of Massachusetts, and Adjunct Professor at the Department of Politics, New York University.

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