The Unexpected Behavior of Plurality Rule
When voters’ preferences on candidates are mutually coherent, in the sense that they are at all close to being perfectly single-peaked, perfectly single-troughed, or perfectly polarized, there is a large probability that a Condorcet Winner exists in elections with a small number of candidates. Given this fact, the study develops representations for Condorcet Efficiency of plurality rule as a function of the proximity of voters’ preferences on candidates to being perfectly single-peaked, perfectly single-troughed or perfectly polarized. We find that the widely used plurality rule has Condorcet Efficiency values that behave in very different ways under each of these three models of mutual coherence.
(This abstract was borrowed from another version of this item.)
Volume (Year): 67 (2009)
Issue (Month): 3 (September)
|Contact details of provider:|| Web page: http://www.springer.com|
|Order Information:||Web: http://www.springer.com/economics/economic+theory/journal/11238/PS2|
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Berg, Sven, 1985. "A note on plurality distortion in large committees," European Journal of Political Economy, Elsevier, vol. 1(2), pages 271-284.
- Dominique Lepelley & Ahmed Louichi & Hatem Smaoui, 2008.
"On Ehrhart polynomials and probability calculations in voting theory,"
Social Choice and Welfare,
Springer;The Society for Social Choice and Welfare, vol. 30(3), pages 363-383, April.
- Dominique Lepelley & Ahmed Louichi & Hatem Smaoui, 2006. "On Ehrhart Polynomials and Probability Calculations in Voting Theory," Economics Working Paper Archive (University of Rennes 1 & University of Caen) 200610, Center for Research in Economics and Management (CREM), University of Rennes 1, University of Caen and CNRS.
- Dominique Lepelley & Ahmed Louichi & Hatem Smaoui, 2007. "On Ehrhart polynomials and probability calculations in voting theory," Post-Print hal-01245310, HAL.
- William V. Gehrlein & Dominique Lepelley, 1999. "Condorcet efficiencies under the maximal culture condition," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 16(3), pages 471-490.
- Gehrlein, William V., 1982. "Condorcet efficiency and constant scoring rules," Mathematical Social Sciences, Elsevier, vol. 2(2), pages 123-130, March.
- Gehrlein, William V. & Fishburn, Peter C., 1978. "Probabilities of election outcomes for large electorates," Journal of Economic Theory, Elsevier, vol. 19(1), pages 38-49, October.
- Dominique Lepelley, 1994. "Condorcet efficiency of positional voting rules with single-peaked preferences," Review of Economic Design, Springer;Society for Economic Design, vol. 1(1), pages 289-299, December.
- William Gehrlein, 2005. "Probabilities of election outcomes with two parameters: The relative impact of unifying and polarizing candidates," Review of Economic Design, Springer;Society for Economic Design, vol. 9(4), pages 317-336, December. Full references (including those not matched with items on IDEAS)