Influence in weighted committees

Sascha Kurz, Alexander Mayer () and Stefan Napel

European Economic Review, 2021, vol. 132, issue C

Abstract: Committee decisions on more than two alternatives much depend on the adopted aggregation rule, and so does the distribution of power among committee members. We quantify how different voting methods such as pairwise majority votes, plurality voting with or without a runoff, or Borda rule map asymmetric numbers of seats, shares, voting weights, etc. to influence on collective outcomes when individual preferences vary. Generalizations of the Penrose-Banzhaf and Shapley-Shubik power indices are proposed and applied to elections of the IMF Managing Director. Previous analysis of a priori power in binary voting is thus extended to universal social choice rules.

Keywords: Weighted voting; Voting power; Weighted committee games; Plurality runoff; Borda rule; Copeland rule; IMF Executive board; IMF Managing director (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:eecrev:v:132:y:2021:i:c:s0014292120302646

DOI: 10.1016/j.euroecorev.2020.103634

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