New theoretical agent-based model of population-wide adoption of prosocial common-pool behavior with four parameters (initial percent of adopters, pressure to change behavior, synergy from behavior, and population density); dynamics in behavior, movement, freeriding, and group composition and size; and emergence of multilevel group selection. Theoretical analysis of model’s dynamics identified six regions in model’s parameter space, in which pressure-synergy combinations lead to different outcomes: extinction, persistence, and full adoption. Simulation results verified the theoretical analysis and demonstrated that increases in density reduce number of pressure-synergy combinations leading to population-wide adoption; initial percent of contributors affects underlying behavior and final outcomes, but not size of regions or transition zones between them; and random movement assists adoption of prosocial common-pool behavior.
Cleaned up parts of the code, introduced the initial-pressure parameter, and introduced the following plots: Mean payoff of agents, Between- vs. within-group selection, Percent of agents that are freeriders, Percent of agents exposed to within-group selection, Percent of agents exposed to between-group selection, Assortativity among contributors, and Assortativity among non-contributors.
|Version||Submitter||First published||Last modified||Status|
|2.0.0||Garry Sotnik||Sat Jul 3 20:38:55 2021||Sat Jul 3 20:38:55 2021||Published Peer Reviewed|
|1.6.1||Garry Sotnik||Sat Sep 26 01:41:46 2020||Sat Sep 26 01:41:46 2020||Published Peer Reviewed|
|1.0.1||Garry Sotnik||Tue Apr 28 03:46:31 2020||Tue Apr 28 03:46:31 2020||Published Peer Reviewed|
|1.0.0||Garry Sotnik||Tue Apr 21 18:07:27 2020||Tue Apr 21 18:07:27 2020||Published Peer Reviewed https://doi.org/10.25937/38tr-c992|