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Network Games under Strategic Complementarities

Author

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  • Mohamed Belhaj

    () (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - ECM - Ecole Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique - AMU - Aix Marseille Université - EHESS - École des hautes études en sciences sociales)

  • Yann Bramoullé

    () (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - ECM - Ecole Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique - AMU - Aix Marseille Université - EHESS - École des hautes études en sciences sociales, Department of Economics, Université Laval - Université Laval)

  • Frédéric Deroïan

    () (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - ECM - Ecole Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique - AMU - Aix Marseille Université - EHESS - École des hautes études en sciences sociales)

Abstract

We study network games with linear best-replies and strategic complementarities. We assume that actions are continuous but bounded from above. We show that there is always a unique equilibrium. We find that two key features of these games under small network effects may not hold when network effects are large. Action may not be aligned with network centrality and the interdependence between agents' actions may be broken.

Suggested Citation

  • Mohamed Belhaj & Yann Bramoullé & Frédéric Deroïan, 2012. "Network Games under Strategic Complementarities," Working Papers halshs-00793439, HAL.
  • Handle: RePEc:hal:wpaper:halshs-00793439
    Note: View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-00793439
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    References listed on IDEAS

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    Citations

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    Cited by:

    1. Belhaj Mohamed & Deroïan Frédéric, 2014. "Competing Activities in Social Networks," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 14(4), pages 1-36, October.
    2. Julia Müller & Thorsten Upmann, 2017. "Eigenvalue Productivity: Measurement of Individual Contributions in Teams," CESifo Working Paper Series 6679, CESifo Group Munich.
    3. Myatt, David P & Wallace, Chris, 2017. "Information Acquisition and Use by Networked Players," CRETA Online Discussion Paper Series 32, Centre for Research in Economic Theory and its Applications CRETA.
    4. Demange, Gabrielle, 2017. "Optimal targeting strategies in a network under complementarities," Games and Economic Behavior, Elsevier, vol. 105(C), pages 84-103.
    5. repec:eee:mateco:v:70:y:2017:i:c:p:154-165 is not listed on IDEAS
    6. repec:eee:gamebe:v:105:y:2017:i:c:p:349-367 is not listed on IDEAS
    7. Baetz, Oliver, 2015. "Social activity and network formation," Theoretical Economics, Econometric Society, vol. 10(2), May.
    8. Bloch, Francis & Quérou, Nicolas, 2013. "Pricing in social networks," Games and Economic Behavior, Elsevier, vol. 80(C), pages 243-261.
    9. Yann Bramoull? & Rachel Kranton & Martin D'Amours, 2014. "Strategic Interaction and Networks," American Economic Review, American Economic Association, vol. 104(3), pages 898-930, March.
    10. Yann Bramoullé & Rachel Kranton, 2015. "Games Played on Networks," Working Papers halshs-01180657, HAL.
    11. Norris, Jonathan, 2017. "Family and Peer Social Identity Effects on Schooling Attitudes and Performance," UNCG Economics Working Papers 17-1, University of North Carolina at Greensboro, Department of Economics.
    12. Songsermsawas, Tisorn & Baylis, Kathy & Chhatre, Ashwini & Michelson, Hope & Prasanna, Satya, 2015. "Friends or traders? Do social networks explain the use of market mechanisms by farmers in India," 2015 Conference, August 9-14, 2015, Milan, Italy 211206, International Association of Agricultural Economists.
    13. Bayer, Péter & Herings, P. Jean-Jacques & Peeters, Ronald & Thuijsman, Frank, 2017. "Adaptive Learning in Weighted Network Games," Research Memorandum 025, Maastricht University, Graduate School of Business and Economics (GSBE).

    More about this item

    Keywords

    Network Games; Strategic Complementarities; Supermodular Games; Bonacich Centrality;

    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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