Condorcet Methods - When, Why and How?
AbstractGeometric representations of 3-candidate profiles are used to investigate properties of preferential election methods. The representation visualizes both the possibility to win by agenda manipulation, i.e. introducing a third and chanceless candidate in a 2-candidate race, and the possibility to win a 3-candidate election through different kinds of strategic voting. Here the focus is on the "burying" strategy in single-winner elections, where the win is obtained by ranking a main competitor artificially low. Condorcet methods are compared with the major alternatives (Borda Count, Approval Voting, Instant Runoff Voting). Various Condorcet methods are studied, and one method is proposed that minimizes the number of noncyclic profiles where burying is possible.
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Bibliographic InfoPaper provided by Department of Business and Management Science, Norwegian School of Economics in its series Discussion Papers with number 2008/11.
Length: 33 pages
Date of creation: 12 Jun 2008
Date of revision:
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Web page: http://www.nhh.no/en/research-faculty/department-of-business-and-management-science.aspx
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Preferential election methods; agenda manipulation; strategic voting;
Find related papers by JEL classification:
- D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
This paper has been announced in the following NEP Reports:
- NEP-ALL-2008-06-21 (All new papers)
- NEP-CDM-2008-06-21 (Collective Decision-Making)
- NEP-POL-2008-06-21 (Positive Political Economics)
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