Physics – Physics and Society
Scientific paper
2005-12-20
Physics
Physics and Society
15 pages, 8 figures; added figures and revised text
Scientific paper
10.1088/1742-5468/2006/06/P06013
We propose an extension of the evolutionary Prisoner's Dilemma cellular automata, introduced by Nowak and May \cite{nm92}, in which the pressure of the environment is taken into account. This is implemented by requiring that individuals need to collect a minimum score $U_{min}$, representing indispensable resources (nutrients, energy, money, etc.) to prosper in this environment. So the agents, instead of evolving just by adopting the behaviour of the most successful neighbour (who got $U^{msn}$), also take into account if $U^{msn}$ is above or below the threshold $U_{min}$. If $U^{msn}
Alonso Julia
Fernández Ariel
Fort Hugo
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