2024
The structure and function of antagonistic ties in village social networks
Ghasemian A, Christakis N. The structure and function of antagonistic ties in village social networks. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2401257121. PMID: 38889155, PMCID: PMC11214085, DOI: 10.1073/pnas.2401257121.Peer-Reviewed Original ResearchConceptsNegative tiesVillage social networksSocial networksFunction of social networksVillage networkAntagonistic tiesSmall-world effectSurvey wavesRural villagesTiesAntagonistic relationshipHuman social networksHuman groupsVillagePositive worldPositive connectionEmpirical dataHighest betweenness centralityNetwork bridgeDissemination of informationNetworkBetweenness centralityShorter average distanceNodesWorld
2023
Emergence and collapse of reciprocity in semiautomatic driving coordination experiments with humans
Shirado H, Kasahara S, Christakis N. Emergence and collapse of reciprocity in semiautomatic driving coordination experiments with humans. Proceedings Of The National Academy Of Sciences Of The United States Of America 2023, 120: e2307804120. PMID: 38079552, PMCID: PMC10743379, DOI: 10.1073/pnas.2307804120.Peer-Reviewed Original ResearchConceptsMachine intelligenceNorm of reciprocitySocial reciprocityNormative commitmentSocial coordinationHuman altruismNegative social repercussionsOnline participantsSocial normsCollective outcomesIndividual safetyCoordination experimentsCoordination gameSocial repercussionsIntelligenceHuman agencyAssistance systemsReciprocityHuman groupsTacit understandingPeopleAssistive technologyCollective challengesCollective action problemsLab experiments