Favorite betrayal criterion
- Favorite betrayal criterion
The Favorite Betrayal criterion is a criterion for evaluating voting methods formulated by Mike Ossipoff. The criterion may be stated as, "There is no set of votes such that a given voter can improve (from his perspective) the outcome by raising his vote for someone over his favorite."
Approval voting, Range voting, Minimax (pairwise opposition), and anti-plurality voting comply with the favorite betrayal criterion. The Borda count, Bucklin voting, Plurality voting, IRV, and all Condorcet methods fail.
External links
* [http://rangevoting.org/FBCsurvey.html Survey of methods that avoid Favorite Betrayal]
* [http://www.barnsdle.demon.co.uk/vote/stfree.html Strategy Criteria by Mike Ossipoff]
* [http://www.icann.org/presentations/guillard-ccnso-carthage-28oct03.pdf Election Methods]
* [http://www.rangevoting.org/FBCsurvey.html Survey of methods satisfying FBC]
* [http://www.rangevoting.org/EscapingDuopoly.html FBC in relation to duopoly]
* [http://www.rangevoting.org/SimmonsSmithPf.html FBC used in mathematical proofs]
* [http://www.rangevoting.org/BackAtKlarreich.html Commentary on FBC in relation to other voting methods]
* [http://nodesiege.tripod.com/elections/#critfbc Kevin Venzke's statement on FBC]
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