Assessing the extent of strategic manipulation for the average voting rule

Régis Renault and Alain Trannoy

No 403, IDEP Working Papers from Institut d'economie publique (IDEP), Marseille, France

Abstract: The average voting procedure reflects the weighted average of expressed opinions in [0,1]. Participants typically behave strategically. We evaluate the discrepancy between the average taste and the average vote. If the population is sufficiently large, it is possible to contruct approximations of both the average vote and the average taste which may be readily compared. We construct upper and lower bounds for the limit average vote that depend on the limit average taste. If the average taste is central enough, the range of possible values for the average voting outcome is narrower than the corresponding range for majority voting. For instance, if the average taste is at 1/2, the limit equilibrium outcome is this value plus or minus roughly .2, whereas the median maybe anywhere in the [0,1] interval. Results are robust to the introduction of incomplete information.

Keywords: Average voting; Nash equilibrium; Strategic Bias. (search for similar items in EconPapers)
JEL-codes: D74 H41 I22 (search for similar items in EconPapers)
Pages: 26 pages
Date: 2004-02
New Economics Papers: this item is included in nep-pbe and nep-pol
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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