Original ResearchPublished 13 January 2026Integrating upstream and downstream reciprocity stabilizes cooperator-defector coexistence in others-only public goods gamesTatsuya Sasaki · Satoshi Uchida · Isamu Okada · Hitoshi Yamamoto · Yutaka NakaiFrontiers in Behavioral Economicsdoi 10.3389/frbhe.2025.1697570
Brief Research ReportPublished 4 December 2025Communication among selected members improves cooperation in a social dilemmaYoko Kitakaji · Yoichi Hizen · Susumu OhnumaFrontiers in Behavioral Economicsdoi 10.3389/frbhe.2025.1495995
Social PsychologyPublished 9 July 2025Promoting cooperative behavior for people with disabilities: focus on the fact that “anyone may become a person with disabilities”Yuho ShimizuFrontiers in Social Psychologydoi 10.3389/frsps.2025.1604911
Complex SystemsPublished 18 June 2025Cooperative behavior in pre-state societies: an agent based approach to the Axum civilizationRiccardo Vasellini · Gilda Ferrandino · Luisa Sernicola · Daniele Vilone · Chiara MocenniFrontiers in Complex Systemsdoi 10.3389/fcpxs.2025.1590952
