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"Need to Know" Versus "Spread the Word": Collective Action in the Multi-Player Electronic Mail Game

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  • K. de Jaegher

Abstract

As shown by Rubinstein (1989, AER), in the two-player electronic mail game, players are better off if the extent to which they can check each other’s information, check each other’s information about each other’s information, etc., is limited. This paper investigates to what extent this result extends to the multi-player electronic mail game. It is shown that, contrary to the two-player game, the multi-player game has a plethora of equilibria. If players play inefficient equilibria where they require a specific communication network to be established in order to achieve collective action, then Rubinstein’s results extend. However, contrary to the two-player game, the multi-player game also has equilibria where players find many alternative communication networks sufficient to undertake collective action. If players play such equilibria, then contrary to what is the case in the two-player electronic mail game they can become better off with more information.

Suggested Citation

  • K. de Jaegher, 2008. ""Need to Know" Versus "Spread the Word": Collective Action in the Multi-Player Electronic Mail Game," Working Papers 08-31, Utrecht School of Economics.
  • Handle: RePEc:use:tkiwps:0831
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    File URL: https://dspace.library.uu.nl/bitstream/handle/1874/309695/08_31.pdf
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    Keywords

    Multi-Player Electronic Mail Game; Collective Action; Communication Networks;

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