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Competing Activities in Social Networks

Author

Listed:
  • Belhaj Mohamed

    (Ecole Centrale Marseille, (Aix-Marseille School of Economics), CNRS and EHESS, Marseille, France)

  • Deroïan Frédéric

    (Aix-Marseille University (Aix-Marseille School of Economics), CNRS and EHESS, Marseille, France)

Abstract

We consider a society in which each agent has one unit of a resource to allocate between two activities. Agents are organized in a social network, and each activity generates complementarities between neighbors. We find multiplicity of equilibrium for high intensity of interaction, and we characterize equilibria in terms of specialization and polarization. Overall, results reveal the crucial role played by network geometry. The results also suggest that the structure of the social network should be taken into account for the design of a public policy in favor of a specific activity.

Suggested Citation

  • Belhaj Mohamed & Deroïan Frédéric, 2014. "Competing Activities in Social Networks," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 14(4), pages 1431-1466, October.
    • Handle: RePEc:bpj:bejeap:v:14:y:2014:i:4:p:36:n:4
    DOI: 10.1515/bejeap-2013-0121
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    Cited by:

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    2. Dev, Pritha & Mberu, Blessing & Pongou, Roland, 2013. "Communitarianism, Oppositional Cultures, and Human Capital Contagion: Theory and Evidence from Formal versus Koranic Education," MPRA Paper 46234, University Library of Munich, Germany, revised 15 Apr 2013.
    3. Belhaj, Mohamed & Deroïan, Frédéric, 2013. "Strategic interaction and aggregate incentives," Journal of Mathematical Economics, Elsevier, vol. 49(3), pages 183-188.
    4. Ethan Cohen‐Cole & Xiaodong Liu & Yves Zenou, 2018. "Multivariate choices and identification of social interactions," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 33(2), pages 165-178, March.
    5. Zenou, Yves & Chen, Ying-Ju & Zhou, Junjie, 2015. "Multiple Activities for Socially-Connected Criminals," CEPR Discussion Papers 10709, C.E.P.R. Discussion Papers.
    6. Koenig, Michael & Hsieh, Chih-Sheng & Liu, Xiaodong & Zimmermann, Christian, 2020. "Collaboration in Bipartite Networks, with an Application to Coauthorship Networks," CEPR Discussion Papers 15195, C.E.P.R. Discussion Papers.
    7. Jackson, Matthew O. & Zenou, Yves, 2015. "Games on Networks," Handbook of Game Theory with Economic Applications,, Elsevier.
    8. Mauleon, Ana & Nanumyan, Mariam & Vannetelbosch, Vincent, 2024. "Ideal efforts and consensus in a multi-layer network game," LIDAM Discussion Papers CORE 2024023, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    9. Pritha Dev & Blessing U. Mberu & Roland Pongou, 2016. "Ethnic Inequality: Theory and Evidence from Formal Education in Nigeria," Economic Development and Cultural Change, University of Chicago Press, vol. 64(4), pages 603-660.
    10. Parise, Francesca & Ozdaglar, Asuman, 2019. "A variational inequality framework for network games: Existence, uniqueness, convergence and sensitivity analysis," Games and Economic Behavior, Elsevier, vol. 114(C), pages 47-82.
    11. Kor, Ryan & Zhou, Junjie, 2023. "Multi-activity influence and intervention," Games and Economic Behavior, Elsevier, vol. 137(C), pages 91-115.
    12. Hanbat Jeong, 2024. "Dynamic spatial interaction models for a leader's resource allocation and followers' multiple activities," Papers 2411.13810, arXiv.org.
    13. Ryan Kor & Junjie Zhou, 2021. "Multi-activity Influence and Intervention," Papers 2106.09410, arXiv.org, revised Nov 2022.

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    More about this item

    Keywords

    social network; limited resource; competing activities; multiplicity; policy intervention;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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