Effect of Heterogeneous Investments on the Evolution of Cooperation in Spatial Public Goods Game (original) (raw)
Fig 2
Relationship between asymptotic fraction of cooperators ρ C and enhancement factor r corresponding to σ = 0, 0.2, 0.5, 0.8, 1.0 respectively.
The curves in the figure show that the larger the value of σ is, the bigger the asymptotic fraction of cooperators ρ C will be. In addition, larger value of σ can decrease the values of r C and r D effectively.