# Variability in group size and the evolution of collective action

> Research article (Journal of Theoretical Biology, 2015) · cited 32× · AI/ML

**Wikidata**: [openalex:W2952128866](https://www.wikidata.org/wiki/openalex:W2952128866)  
**Source**: https://4ort.xyz/entity/variability-in-group-size-and-the-evolution-of-collective-action