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Gaining power through enlargement: Strategic foundations and experimental evidence

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  • Drouvelis, Michalis
  • Montero, Maria
  • Sefton, Martin

Abstract

Power indices suggest that adding new members to a voting body may affect the balance of power between the original members even if their number of votes and the decision rule remain constant. Some of the original members may actually gain even if voters are bargaining over a fixed budget. We show that this phenomenon can occur as an equilibrium of a non-cooperative bargaining game based on the Baron and Ferejohn (1989) model of legislative bargaining. We implement this game in the laboratory and find that power can be gained by adding new members as the theory predicts.

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Bibliographic Info

Article provided by Elsevier in its journal Games and Economic Behavior.

Volume (Year): 69 (2010)
Issue (Month): 2 (July)
Pages: 274-292

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Handle: RePEc:eee:gamebe:v:69:y:2010:i:2:p:274-292

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Web page: http://www.elsevier.com/locate/inca/622836

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Keywords: Voting Non-cooperative bargaining Power indices Experiments;

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References

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Citations

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Cited by:
  1. Matthias Weber, 2014. "Choosing Voting Systems behind the Veil of Ignorance: A Two-Tier Voting Experiment," Tinbergen Institute Discussion Papers 14-042/I, Tinbergen Institute.
  2. R. Bosman & P. Maier & V. Sadiraj & F. van Winden, . "Let Me Vote! An experimental study of vote rotation in committees," Experimental Economics Center Working Paper Series 2006-18, Experimental Economics Center, Andrew Young School of Policy Studies, Georgia State University, revised Aug 2013.
  3. Eraslan, Hülya & McLennan, Andrew, 2013. "Uniqueness of stationary equilibrium payoffs in coalitional bargaining," Journal of Economic Theory, Elsevier, vol. 148(6), pages 2195-2222.
  4. Breitmoser, Yves & Tan, Jonathan H.W., 2014. "Reference Dependent Altruism," MPRA Paper 52774, University Library of Munich, Germany.
  5. Breitmoser, Yves & Tan, Jonathan H.W., 2011. "Ultimata bargaining: generosity without social motives," MPRA Paper 33613, University Library of Munich, Germany.
  6. Breitmoser, Yves & Tan, Jonathan H.W., 2013. "Reference dependent altruism in demand bargaining," Journal of Economic Behavior & Organization, Elsevier, vol. 92(C), pages 127-140.
  7. Vanberg, Christoph & Miller Moya, Luis Miguel, . "Group size and decision rules in legislative bargaining," DFAEII Working Papers DFAE-II;2014-01, University of the Basque Country - Department of Foundations of Economic Analysis II.

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