# Group Cooperation without Group Selection: Modest Punishment Can Recruit Much Cooperation

> Research article (PLoS ONE, 2015) · cited 33× · AI/ML

**Wikidata**: [openalex:W2063728994](https://www.wikidata.org/wiki/openalex:W2063728994)  
**Source**: https://4ort.xyz/entity/group-cooperation-without-group-selection-modest-punishment-can-recruit-much-cooperation