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Contribution Details

Type Working Paper
Scope Discipline-based scholarship
Title Pre-play communication with forgone costly messages: experimental evidence on forward induction
Organization Unit
Authors
  • Andreas Blume
  • Peter H Kriss
  • Roberto A. Weber
Language
  • English
Institution University of Zurich
Series Name Working paper series / Department of Economics
Number No. 34
ISSN 1664-7041
Number of Pages 40
Date 2014
Abstract Text We study communication in a two-player coordination game with Pareto-ranked equilibria. Prior research demonstrates that efficient coordination is difficult without communication but obtains regularly with (mandatory) costless pre-play messages. In a laboratory experiment, we modify communication by making the sending of messages optional and costly. Even small costs dramatically reduce message use, but efficient coordination of actions occurs with similar frequency to that observed under costless communication. Our results can be accounted for by Govindan and Wilson's formalization of forward induction (GW-FI), which selects, among the pure-strategy equilibrium outcomes, the one in which efficiency is achieved without communication. Consistent with the introspective character of GW-FI, the fraction of players who achieve efficient coordination by forgoing the use of reasonably costly optional messages is substantial from the first period, is remarkably stable at that level, and is not significantly affected by learning.
Official URL http://www.econ.uzh.ch/static/wp/econwp034.pdf
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Keywords Coordination, communication, forward induction, experiment, stag hunt, Spieltheorie, Kooperatives Spiel, Kommunikation, Effizienz
Additional Information Revised version