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Sequential Equilibria and Cheap Talk in Infinite Signaling Games

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  • Karl Iorio
  • Alejandro M. Manuelli

Abstract

This paper shows the existence of sequential and weak-best-response equilibria for cheap-talk extensions of signaling games for a class of signaling games called communication-impervious. An example shows there are well-behaved infinite signaling games with no sequential equilibria. The assumption that talk is cheap seems reasonable in many economic contexts and yields a very straightforward solution to the existence problem in infinite signaling games. The cheap-talk assumption opens the possibility of extending the methods of this paper to prove the existence of equilibrium in more-general extensive-form games with infinite action and information sets.

Suggested Citation

  • Karl Iorio & Alejandro M. Manuelli, 1990. "Sequential Equilibria and Cheap Talk in Infinite Signaling Games," Discussion Papers 915, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
    • Handle: RePEc:nwu:cmsems:915
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    References listed on IDEAS

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