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False Consensus Voting and Welfare Reducing Polls

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Author Info

  • Jacob Goeree
  • Jens Großer

Abstract

We consider a process of costly majority voting where people anticipate that others have similar preferences. This perceived consensus of opinion is the outcome of a fully rational Bayesian updating process where individuals consider their own tastes as draws from a population. We show that the correlation in preferences lowers expected turnout. The intuition is that votes have a positive externality on those who don’t participate, which reduces incentives to participate. We study the effects of the public release of information (“polls”) on participation levels. We find that polls raise expected turnout but reduce expected welfare because they stimulate the “wrong” group to participate. As a result, polls frequently predict the wrong outcome. While this lack of prediction power is usually attributed to an imperfect polling technology, we show it may result from the reaction of rational voters to the poll’s accurate information.

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Bibliographic Info

Paper provided by University of Cologne, Department of Economics in its series Working Paper Series in Economics with number 9.

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Length: 19 pages
Date of creation: 26 May 2004
Date of revision:
Handle: RePEc:kls:series:0009

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Related research

Keywords: Majority Voting; Correlated Preferences; False Consensus; Pre-election Polls;

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References

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  1. John Ledyard, 1984. "The pure theory of large two-candidate elections," Public Choice, Springer, vol. 44(1), pages 7-41, January.
  2. Colin M. Campbell, 1999. "Large Electorates and Decisive Minorities," Journal of Political Economy, University of Chicago Press, vol. 107(6), pages 1199-1217, December.
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Cited by:
  1. Sayantan Ghosal & Ben Lockwood, 2009. "Costly voting when both information and preferences differ: is turnout too high or too low?," Social Choice and Welfare, Springer, vol. 33(1), pages 25-50, June.

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