Technical Journal, Vol. 9 No. 2, 2015.
Professional paper
Evolution of cooperation in Noweg-Sigmunds iterated prisoner's dilemma
Jurica Hižak
orcid.org/0000-0002-8394-5581
; Sveučilište Sjever, Sveučilišni centar Varaždin, Varaždin, Hrvatska
Abstract
This paper describes the method and the results of a research that Martin Nowak and Karl Sigmund published 1992 in Nature in an article entitled "Tit for tat in heterogeneous populations." Through computer-simulated tournament of iterated prisoner's dilemma, the authors showed that the strategy "Tit for Tat" ( TFT) is essential for the emergence of cooperation in a heterogeneous group of players. Their simulation shows that initially mixed population of players evolves to the extinction of almost all strategies except renegades, and then there is a sudden increase in TFT players. Moreover, the simulation shows that TFT is not really the end of evolution, but the beginning of the predominance of a more generous strategy. According to the authors, TFT is a pivot, rather than the end point of an evolution towards cooperation.
Keywords
evolution of cooperation; iterated prisoner’s dilemma; Tit for tat strategy
Hrčak ID:
140751
URI
Publication date:
15.6.2015.
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