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Group size, collective action and complementarities in efforts

Author

Listed:
  • Guillaume Cheikbossian

    (CEE-M - Centre d'Economie de l'Environnement - Montpellier - FRE2010 - INRA - Institut National de la Recherche Agronomique - UM - Université de Montpellier - CNRS - Centre National de la Recherche Scientifique - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier)

  • Romain Fayat

    (CEE-M - Centre d'Economie de l'Environnement - Montpellier - FRE2010 - INRA - Institut National de la Recherche Agronomique - UM - Université de Montpellier - CNRS - Centre National de la Recherche Scientifique - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier)

Abstract

We revisit the group size paradox in a model where two groups of different sizes compete for a prize exhibiting a varying degree of rivalry and where group effort is given by a CES function of individual efforts. We show that the larger group can be more successful than the smaller group if the degree of complementarity is sufficiently high relative to the degree of rivalry of the prize

Suggested Citation

  • Guillaume Cheikbossian & Romain Fayat, 2018. "Group size, collective action and complementarities in efforts," Post-Print hal-02156268, HAL.
    • Handle: RePEc:hal:journl:hal-02156268
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    Cited by:

    1. Martin Kolmar & Hendrik Rommeswinkel, 2020. "Group size and group success in conflicts," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 55(4), pages 777-822, December.
    2. Cheikbossian, Guillaume, 2021. "Evolutionarily stable in-group altruism in intergroup conflict over (local) public goods," Games and Economic Behavior, Elsevier, vol. 127(C), pages 206-226.
    3. Nöldeke, Georg & Peña, Jorge, 2018. "Group size effects in social evolution," IAST Working Papers 18-75, Institute for Advanced Study in Toulouse (IAST).
    4. Lima, Vinicius, 2025. "Group size, member selection, and performance: Evidence from legislative elections in Brazil," Economics Letters, Elsevier, vol. 247(C).
    5. Peña, Jorge & Heifetz, Aviad & Nöldeke, Georg, 2024. "The shirker’s dilemma and the prospect of cooperation in large groups," Theoretical Population Biology, Elsevier, vol. 155(C), pages 10-23.
    6. Sugata Ghosh & Petros G. Sekeris & Shikha Silwal, 2025. "The political economy of group domination and pre-electoral violence," Journal of Population Economics, Springer;European Society for Population Economics, vol. 38(4), pages 1-31, December.
    7. Dripto Bakshi & Indraneel Dasgupta, 2021. "A Subscription vs. Appropriation Framework for Natural Resource Conflicts," World Scientific Book Chapters, in: Anil Markandya & Dirk Rübbelke (ed.), CLIMATE AND DEVELOPMENT, chapter 9, pages 257-307, World Scientific Publishing Co. Pte. Ltd..
    8. Bakshi, Dripto & Dasgupta, Indraneel, 2021. "Internal versus External Rent-Seeking with In-Group Inequality and Public Good Provision," IZA Discussion Papers 14871, Institute of Labor Economics (IZA).
    9. Guillaume Cheikbossian, 2021. "Group cooperation against a hegemon," Journal of Theoretical Politics, , vol. 33(1), pages 25-55, January.
    10. Katsuya Kobayashi & Hideo Konishi, 2021. "Effort complementarity and sharing rules in group contests," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 56(2), pages 205-221, February.
    11. Katsuya Kobayashi, 2024. "Effort complementarity and role assignments in group contests," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 33(3), pages 483-508, August.
    12. Peña, Jorge & Heifetz, Aviad & Nöldeke, Georg, 2023. "The shirker’s dilemma and the prospect of cooperation in large groups," IAST Working Papers 23-152, Institute for Advanced Study in Toulouse (IAST), revised Oct 2023.
    13. María Cubel & Santiago Sanchez-Pages, 2025. "Difference-form group contests," Review of Economic Design, Springer;Society for Economic Design, vol. 29(3), pages 415-446, September.
    14. Dripto Bakshi & Indraneel Dasgupta, 2021. "Internal vs. external rent-seeking with in-group inequality and public good provision," Discussion Papers 2021-06, University of Nottingham, CREDIT.

    More about this item

    Keywords

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    JEL classification:

    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
    • D74 - Microeconomics - - Analysis of Collective Decision-Making - - - Conflict; Conflict Resolution; Alliances; Revolutions

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