Cooperative behavior in evolutionary snowdrift games with the unconditional imitation rule on regular lattices.


We study an evolutionary snowdrift game with the unconditional imitation updating rule on regular lattices. Detailed numerical simulations establish the structure of plateaus and discontinuous jumps of the equilibrium cooperation frequency f(c) as a function of the cost-to-benefit ratio r. By analyzing the stability of local configurations, it is found that… (More)