A methodological note on a weighted voting experiment

Eric Guerci, Nobuyuki Hanaki, Naoki Watanabe (), Gabriele Esposito and Xiaoyan Lu ()

Social Choice and Welfare, 2014, vol. 43, issue 4, 827-850

Abstract: We conducted a sensitivity analysis of the results of weighted voting experiments by varying two features of the experimental protocol by Montero et al. (Soc Choice Welf 30(1):69–87, 2008 ): (1) the way in which the roles of subjects are reassigned in each round [random role (RR) vs. fixed role (FR)] and (2) the number of proposals that subjects can simultaneously approve [multiple approval (MA) vs. single approval (SA)]. It was observed that the differences in these protocols had impacts on the relative frequencies of minimum winning coalitions (MWCs) as well as how negotiations proceed. 3-player MWCs were more frequently observed, negotiations were much longer, subjects made less mistakes, and proposal-objection dynamics were more frequently observed, under the protocol with FR and SA than under the protocol with RR and MA. Copyright Springer-Verlag Berlin Heidelberg 2014

Date: 2014
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Working Paper: A methodological note on a weighted voting experiment (2014)
Working Paper: A Methodological Note on a Weighted Voting Experiment (2013)
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DOI: 10.1007/s00355-014-0814-y

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