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Boundary and interior equilibria: what drives convergence in a ‘beauty contest’?

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  • Andrea, Morone
  • Piergiuseppe, Morone

Abstract

We present an experimental game in the p-beauty framework. Building on the definitions of boundary and interior equilibria, we distinguish between ‘speed of convergence towards the game-theoretic equilibrium’ and ‘deviations of the guesses from the game-theoretic equilibrium’. In contrast to earlier findings (Güth et al., 2002), we show, under a different game parameterisation, that (i) interior equilibria initially produce smaller deviation of the guesses from the game-theoretic equilibrium compared to boundary equilibria; (ii) interior and boundary equilibria do not differ in the timeframe needed for convergence; (iii) the speed of convergence is higher in the boundary equilibrium.

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File URL: http://mpra.ub.uni-muenchen.de/9584/
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Bibliographic Info

Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 9584.

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Date of creation: 2008
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Handle: RePEc:pra:mprapa:9584

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Keywords: Guessing game; p-beauty contest; individual behaviour;

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  1. Antoni Bosch-Dom?nech & Jose Garcia-Montalvo & Rosemarie Nagel & Albert Satorra, 2002. "One, two, (three), infinity: Newspaper and lab beauty-contest experiments," Artefactual Field Experiments 00011, The Field Experiments Website.
  2. Guth, Werner & Kocher, Martin & Sutter, Matthias, 2002. "Experimental 'beauty contests' with homogeneous and heterogeneous players and with interior and boundary equilibria," Economics Letters, Elsevier, vol. 74(2), pages 219-228, January.
  3. Nagel, Rosemarie, 1995. "Unraveling in Guessing Games: An Experimental Study," American Economic Review, American Economic Association, vol. 85(5), pages 1313-26, December.
  4. Duffy, John & Nagel, Rosemarie, 1997. "On the Robustness of Behaviour in Experimental "Beauty Contest" Games," Economic Journal, Royal Economic Society, vol. 107(445), pages 1684-1700, November.
  5. Weber, Roberto A., 2003. "'Learning' with no feedback in a competitive guessing game," Games and Economic Behavior, Elsevier, vol. 44(1), pages 134-144, July.
  6. Andrea Morone & Piergiuseppe Morone, 2007. "Guessing Games and People Behaviours: What Can we Learn?," series 0015, Dipartimento di Scienze Economiche e Metodi Matematici - Università di Bari, revised Feb 2007.
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Cited by:
  1. Joep Sonnemans & Jan Tuinstra, 2008. "Positive Expectations Feedback Experiments and Number Guessing Games as Models of Financial Markets," Tinbergen Institute Discussion Papers 08-076/1, Tinbergen Institute.
  2. Andrea Morone & Piergiuseppe Morone, 2012. "Individual and Group Behaviours in the Traveller's Dilemma: An Experimental Study," Working Papers 2012/09, Economics Department, Universitat Jaume I, Castellón (Spain).
  3. Shu-Heng Chen & Ye-Rong Du & Lee-Xieng Yang, 2014. "Cognitive capacity and cognitive hierarchy: a study based on beauty contest experiments," Journal of Economic Interaction and Coordination, Springer, vol. 9(1), pages 69-105, April.
  4. repec:dgr:uvatin:2008076 is not listed on IDEAS

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