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Incorporating aging in the evaluation of fitness promotes cooperation School of Physics, Nankai University, Tianjin 300071, China and
 

Summary: Incorporating aging in the evaluation of fitness promotes cooperation
Zhen Wang
School of Physics, Nankai University, Tianjin 300071, China and
Department of Physics, HongKong Baptist University, Kowloon Tong, HongKong
Zhen Wang
School of Innovation Experiment and School of Mathematical Science,
Dalian University of Technology, Dalian 116024, China
Xiaodan Zhu
School of Innovation Experiment, Dalian University of Technology, Dalian 116024, China
Jeferson J. Arenzon
Instituto de F´isica and INCT-Sistemas Complexos, Universidade Federal do Rio Grande do Sul, CP 15051, 91501-970 Porto Alegre RS, Brazil
We study the evolution of cooperation in the prisoner's dilemma game when the fitness correlates with the
increasing age of players. This mechanism, through the tuning parameter , introduces heterogeneities that
are shown to be responsible for enhancing the cooperative behavior in the population. In particular, moderate
values of allow cooperators not only to survive but to outcompete defectors, even when the temptation to
defect is large and the standard, = 0 model (in this case, fitness and payoff are equivalent) does not sustain
cooperation. The interplay between heterogeneity and noise is also considered, and we obtain the conditions for
optimal levels of cooperation.
PACS numbers: 02.50.Le, 87.23.-n, 89.65.-s
I. INTRODUCTION

  

Source: Arenzon, Jeferson J. - Instituto de Física, Universidade Federal do Rio Grande do Sul

 

Collections: Physics