Figure 5. The average offer level p, acceptance level q, and the average payoff w of the population in a typical evolutionary process for different γ.

The left plot γ = 0.5 and the middle plot γ = 0.75, and the right plot γ = 1.0. The population is structured by the scale-free networks. The feedback-based role assignment regime is invoked to determine whoever acts as the proposer. Other parameter: m = 3, m₀ = 3, the population size N = 1000, selection intensity β = 10, δ = 0.005.