A Model of Human Cooperation in Social Dilemmas
Open Access
- 29 August 2013
- journal article
- research article
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 8 (8), e72427
- https://doi.org/10.1371/journal.pone.0072427
Abstract
Social dilemmas are situations in which collective interests are at odds with private interests: pollution, depletion of natural resources, and intergroup conflicts, are at their core social dilemmas. Because of their multidisciplinarity and their importance, social dilemmas have been studied by economists, biologists, psychologists, sociologists, and political scientists. These studies typically explain tendency to cooperation by dividing people in proself and prosocial types, or appealing to forms of external control or, in iterated social dilemmas, to long-term strategies. But recent experiments have shown that cooperation is possible even in one-shot social dilemmas without forms of external control and the rate of cooperation typically depends on the payoffs. This makes impossible a predictive division between proself and prosocial people and proves that people have attitude to cooperation by nature. The key innovation of this article is in fact to postulate that humans have attitude to cooperation by nature and consequently they do not act a priori as single agents, as assumed by standard economic models, but they forecast how a social dilemma would evolve if they formed coalitions and then they act according to their most optimistic forecast. Formalizing this idea we propose the first predictive model of human cooperation able to organize a number of different experimental findings that are not explained by the standard model. We show also that the model makes satisfactorily accurate quantitative predictions of population average behavior in one-shot social dilemmas.Other Versions
This publication has 37 references indexed in Scilit:
- Stochastic evolutionary dynamics resolve the Traveler's DilemmaJournal of Theoretical Biology, 2012
- The online laboratory: conducting experiments in a real labor marketExperimental Economics, 2011
- Winners don’t punishNature, 2008
- Human cooperation in social dilemmas: comparing the Snowdrift game with the Prisoner's DilemmaProceedings. Biological sciences, 2007
- Five Rules for the Evolution of CooperationScience, 2006
- A Cognitive Hierarchy Model of GamesThe Quarterly Journal of Economics, 2004
- Role of interdependence structure, individual value orientation, and another's strategy in social decision making: A transformational analysis.Journal of Personality and Social Psychology, 1988
- Group Size Effects in Public Goods Provision: The Voluntary Contributions MechanismThe Quarterly Journal of Economics, 1988
- Cooperative choice in N-person dilemma situation.Journal of Personality and Social Psychology, 1980
- Conflict between individual and common interest in an N-person relationship.Journal of Personality and Social Psychology, 1972