On Weak Condorcet Winners: Existence and Uniqueness
Consider a society where each agent has weak preferences over alternatives. The purpose of the society is the selection of alternatives using the majority principle. Then, an alternative x (a weak Condorcet winner) is selected if half or more agents agree that x is as least as good as any other alternative. We give necessary and sufficient conditions on preference profiles under which (i) the set of Weak Condorcet Winners is non-empty; and (ii) the Weak Condorcet Winner is unique.
|Date of creation:||Jan 2013|
|Publication status:||Published in PERSPECTIVAS: Revista de análisis de Economía, Comercio y Negocios Internacionales 1.7(2013): pp. 3-14|
|Contact details of provider:|| Postal: Ludwigstraße 33, D-80539 Munich, Germany|
Web page: https://mpra.ub.uni-muenchen.de
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- Laffond G. & Laslier, J. F. & Le Breton, M., 1996.
"Condorcet choice correspondences: A set-theoretical comparison,"
Mathematical Social Sciences,
Elsevier, vol. 31(1), pages 59-59, February.
- Laffond, Gilbert & Laslier, Jean Francois & Le Breton, Michel, 1995. "Condorcet choice correspondences: A set-theoretical comparison," Mathematical Social Sciences, Elsevier, vol. 30(1), pages 23-35, August.
- Borm, Peter & van den Brink, Rene & Levinsky, Rene & Slikker, Marco, 2004. "On two new social choice correspondences," Mathematical Social Sciences, Elsevier, vol. 47(1), pages 51-68, January.
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