Journal
PHYSICAL REVIEW E
Volume 84, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.84.051114
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Funding
- National High Technology Research and Development Program of China (863 program) [2009AA043703]
- National Natural Science Foundation of China [NSFC 91023045]
- Center for Asia Studies of Nankai University [AS1005]
- Development Fund of Science and Technology for the Higher Education in Tianjin [20100908]
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By incorporating ecological dynamics into evolutionary games, we introduce natural and unnatural death to the spatial prisoner's dilemma game in which individuals can play mixed strategies. This introduction can give a simple explanation for the emergence and abundance of cooperation in animal and human societies. We found that individuals are more likely to cooperate in a highly competitive environment. In addition, our simulation results suggest that the individuals would tend to cooperate when the temptation to defect is small.
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