Evolutionary Establishment of Moral and Double Moral Standards through Spatial Interactions
Figure 4
Dependence of cluster shapes on the punishment fine in the stationary state, supporting an adaptive balance between the payoffs of two different strategies at the interface between competing clusters.
Snapshots in the top row were obtained for low punishment fines, while the bottom row depicts results obtained for higher values of . (a) Coexistence of moralists and defectors for a synergy factor
, punishment cost
, and punishment fine
. (b) Same parameters, apart from
. (c) Coexistence of moralists and immoralists for
,
, and
. (d) Same parameters, apart from
. A similar change in the cluster shapes is found for the coexistence of cooperators and defectors, if the synergy factor
is varied.