Computational Model Library

This release is out-of-date. The latest version is 2.0.0

Multilevel Group Selection I (version 1.6.1)

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.

Release Notes

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.

Download Version 1.6.1
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

Discussion

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