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Focused Power: Experimental Manifestation of the Shapley-Shubik Power Index

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Author Info

  • Chris Geller

    ()
    (Deakin University)

  • Jamie Mustard

    ()
    (Deakin University)

  • Ranya Shahwan

Abstract

Experiments evaluate the fit of the Shapley-Shubik Power Index to a controlled human environment. Subjects with differing votes divide a fixed purse by majority rule in online chat rooms under supervision. Earnings serve as a measure of power. Chat rooms and processes for selecting subjects reduce or eliminate extraneous political forces, leaving logrolling as the primary political force. Initial proposals by subjects for division of the purse allow measurement of effects from focal points and transaction costs. Net results closely fit the Shapley-Shubik Power Index.

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File URL: http://www.deakin.edu.au/buslaw/aef/workingpapers/papers/2007-13eco.pdf
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Bibliographic Info

Paper provided by Deakin University, Faculty of Business and Law, School of Accounting, Economics and Finance in its series Economics Series with number 2007_13.

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Length: 40 pages
Date of creation: 23 Nov 2007
Date of revision:
Handle: RePEc:dkn:econwp:eco_2007_13

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Keywords: Voting; Power Index; Focal Point; Shapley-Shubik; Experiment;

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  1. Donal G. Saari & Katri K. Sieberg, 1999. "Some Surprising Properties of Power Indices," Discussion Papers, Northwestern University, Center for Mathematical Studies in Economics and Management Science 1271, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
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  4. Chris GELLER & Jamie MUSTARD & Ranya SHAHWAN, 2004. "Standard Voting Power Indices Work: An Experimental Investigation of Pure Voting Power," Economics Series 2004_23, Deakin University, Faculty of Business and Law, School of Accounting, Economics and Finance.
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  13. Sugden, Robert, 1995. "A Theory of Focal Points," Economic Journal, Royal Economic Society, Royal Economic Society, vol. 105(430), pages 533-50, May.
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