Supporting Information to: Evolutionary establishment of moral and double moral standards via spatial interactions

published in PLoS Computational Biology: Evolutionary establishment of moral and double moral standards via spatial interactions

Dirk Helbing^1,2,3 Attila Szolnoki⁴ Matjaž Perc⁵ György Szabó⁴

1 ETH Zurich, Chair of Sociology, Universitätstr. 41, 8092 Zurich, Switzerland

2 Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM 87501, USA

3 Collegium Budapest - Institute for Advanced Study

4 Research Institute for Technical Physics and Materials Science, P.O. Box 49, H-1525 Budapest, Hungary

5 Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, SI-2000 Maribor, Slovenia

Movie SV1
Indirect territorial battle between cooperators (blue) and moralists (green) in the presence of defectors (red). The computer simulation of the public goods game with punishment is performed for a grid of size LxL=100x100, where the synergy factor of cooperation is r=4.4, the punishment fine ß=0.1, and the punishment cost is γ=0.1. For a detailed discussion of the spatio-temporal dynamics see the main manuscript, particularly Fig. 2.

Movie SV2
Temporal evolution of a coexistence between defectors (red) and cooperators (blue) for the parameter values r=4.4, ß=0.1, and γ=0.3.

Movie SV3
Symbiosis of moralists (green) and immoralists (yellow), who jointly defeat defectors (red). The computer simulation is performed for a grid of size LxL=100x100, where the synergy factor of cooperation is r=3.5, the punishment fine is ß=0.12, and the punishment cost is γ=0.005. For a detailed discussion of the spatio-temporal dynamics see the main manuscript, particularly Fig. 3.