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An evolutionary explanation for the propensity to migrate

  • SAVVATEEV, Alexei
  • STARK, Oded

We explore the evolutionary dynamics of a population that consists of cooperators and defectors, wherein each member of the many pairs of players of a one-shot prisoner's dilemma game is drawn at random, and the number of descendents positively depends on the payoffs in the game. We demonstrate how an inclination to migrate may be mapped onto the overall evolutionary fitness of the cooperators. The threshold value of the inclination to migrate parameter is obtained. Intensities of migration higher than that value guarantee that in the long run, the population will consist entirely of cooperators. The threshold value is characterized by the payoff parameters lying at the base of the evolutionary dynamics.

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Paper provided by Université catholique de Louvain, Center for Operations Research and Econometrics (CORE) in its series CORE Discussion Papers with number 2005038.

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Date of creation: 00 May 2005
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Handle: RePEc:cor:louvco:2005038
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  1. Theodore C. Bergstrom & Oded Stark, 1994. "How Altruism Can Prevail in an Evolutionary Environment," Microeconomics 9401001, EconWPA.
  2. Stark, Oded, 2003. "Cooperation And Wealth," Discussion Papers 18763, University of Bonn, Center for Development Research (ZEF).
  3. Oded Stark, 1998. "On the Economics of Vanishing," Departmental Working Papers _099, Chinese University of Hong Kong, Department of Economics.
  4. Falk, Ita & Stark, Oded, 2001. "Dynasties and Destiny: On the Roles of Altruism and Impatience in the Evolution of Consumption and Bequests," Economica, London School of Economics and Political Science, vol. 68(272), pages 505-18, November.
  5. Theodore C. Bergstrom, 2002. "Evolution of Social Behavior: Individual and Group Selection," Journal of Economic Perspectives, American Economic Association, vol. 16(2), pages 67-88, Spring.
  6. Stark, Oded, 1999. "Siblings, Strangers, and the Surge of Altruism," Economics Series 67, Institute for Advanced Studies.
  7. Oded Stark & You Wang, 2004. "On the evolutionary edge of altruism: a game-theoretic proof of Hamilton’s rule for a simple case of siblings," Journal of Evolutionary Economics, Springer, vol. 14(1), pages 37-42, January.
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