Journal ArticleSocial Psychology Quarterly · December 1, 2023
Norms, typically enforced via sanctions, are key to resolving collective-action problems. But it is often impossible to know what each individual member is contributing to group efforts and enforce cooperation accordingly. Especially as group size increase ...
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Journal ArticlePNAS Nexus · December 1, 2023
When people provide for large-scale public goods, they often do not know what each individual group member is contributing. Instead, they commonly have access to the behaviors of their ties, in a broader network of others whose decisions are unknown. But n ...
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Journal ArticleSocial Forces · July 14, 2023
AbstractPeople frequently engage in preferential treatment toward those with whom they share category memberships. At the same time, sociologists have long understood that the structure of ongoing relations ...
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Journal ArticleSocial science research · January 2023
Decisions to benefit others often entail generalized reciprocity: helping someone who cannot directly return benefits in the future; instead, the beneficiary may "pay it forward" to someone else. While much past work demonstrates that people pay forward ge ...
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Journal ArticleRationality and Society · August 1, 2021
People commonly possess multiple, differentially-valued resources they can use to benefit those in need: contributing money, volunteering time, donating unwanted possessions, posting on social media to raise awareness, and more. But the majority of experim ...
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Journal ArticleSocial science research · February 2021
When spouses decide together how much of their joint income to donate to charity, or the parents of several children in a classroom agree to chip in for the cost of a group gift for a teacher, they are engaging in a joint act of benefiting a third party. P ...
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Journal ArticleAmerican Journal of Sociology · January 1, 2020
Social networks affect individuals’ ability to solve conflicts between individual and collective interests. Indeed, the ability to seek out cooperative others is a key explanation for the high levels of cooperation observed in social life. In contrast to e ...
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Journal ArticlePloS one · January 2019
The temptation to free-ride on others' contributions to public goods makes enhancing cooperation a critical challenge. Solutions to the cooperation problem have centered on installing a sanctioning institution where all can punish all, i.e., peer punishmen ...
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Journal ArticleScience advances · December 2018
Dynamic networks, where ties can be shed and new ties can be formed, promote the evolution of cooperation. Yet, past research has only compared networks where all ties can be severed to those where none can, confounding the benefits of fully dynamic networ ...
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Journal ArticleAmerican Sociological Review · February 2018
Social scientists often study the flow of material and social support as generalized exchange systems. These systems are associated with an array of benefits to groups and communities, but their existence is problematic, because individuals may be ...
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Journal ArticleProceedings of the National Academy of Sciences · January 30, 2018
SignificanceUnderstanding the patterns and processes of human cooperation is of central scientific importance. Networks can promote cooperation when their existing or emergent topology allows conditional cooperat ...
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Journal ArticleScientific Reports · March 23, 2017
AbstractDynamic networks have been shown to increase cooperation, but prior findings are compatible with two different mechanisms for the evolution of cooperation. It may be that dynamic networks promote cooperation even in ...
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Journal ArticleScientific Reports · February 17, 2017
AbstractThe threat of free-riding makes the marshalling of cooperation from group members a fundamental challenge of social life. Where classical social science theory saw the enforcement of moral boundaries as a critical w ...
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Journal ArticleRationality and Society · November 2012
Researchers have long argued that religion increases prosocial behavior, but results are equivocal. Recent findings on priming religious concepts seem to show that religion drives other-regarding behaviors. However, here I suggest that some religi ...
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