IDEAS home Printed from
   My bibliography  Save this paper

What Matters Most: Information or Interaction? The Importance of Behavioral Rules on Network Effects for Contagion Processes


  • Virginie Masson

    () (School of Economics, University of Adelaide)

  • Simon Angus

    (School of Economics, Monash University)


We consider a finite population of agents and define a contagion process as the dynamics by which an action, which is initially played by only a small subset of agents, is adopted by the entire population. Each agent has a set of neighbors with whom he shares information and a set of partners with whom he plays a game. These two sets may or may not coincide. Each period, agents choose their actions based on what they observe from their neighbors, and get some payoff from playing a game with their partners. We show that contagion of an action that is risk dominant and efficient is obtained through partners when agents imitate-the-best, and through neighbors when agents use a myopic best response.

Suggested Citation

  • Virginie Masson & Simon Angus, 2009. "What Matters Most: Information or Interaction? The Importance of Behavioral Rules on Network Effects for Contagion Processes," School of Economics Working Papers 2009-35, University of Adelaide, School of Economics.
  • Handle: RePEc:adl:wpaper:2009-35

    Download full text from publisher

    File URL:
    Download Restriction: no

    References listed on IDEAS

    1. Dunia López-Pintado, 2006. "Contagion and coordination in random networks," International Journal of Game Theory, Springer;Game Theory Society, vol. 34(3), pages 371-381, October.
    2. Alós-Ferrer, Carlos & Weidenholzer, Simon, 2008. "Contagion and efficiency," Journal of Economic Theory, Elsevier, vol. 143(1), pages 251-274, November.
    Full references (including those not matched with items on IDEAS)

    More about this item


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:adl:wpaper:2009-35. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Eran Binenbaum). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.