Connectors and Influencers

Syngjoo Choi, Sanjeev Goyal and Frederic Moisan ()

Cambridge Working Papers in Economics from Faculty of Economics, University of Cambridge

Abstract: We study a setting in which personal acquisition of information is costly and maintaining personal contacts to share information socially is also costly. The theory predicts star networks, with small groups sustaining an active hub and large groups allowing in addition for an inactive hub equilibrium. Experiments with small (8 subjects) and large (50 subjects) groups show star-like networks throughout. In small groups, behaviour matches the active hub prediction. In large groups, hubs are inactive or engage in activity far in excess of the active hub equilibrium, depending on how much information subjects are given on their own and others’ earnings. Hub’s activity level shapes relative earnings of subjects and the overall performance of the group.

JEL-codes: C92 D83 D85 Z13 (search for similar items in EconPapers)
Date: 2025-12-07
New Economics Papers: this item is included in nep-cdm, nep-exp, nep-gth and nep-soc
Note: sg472, fm442
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Working Paper: Connectors and Influencers (2022)
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Persistent link: https://EconPapers.repec.org/RePEc:cam:camdae:1935

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