Ranked Choice Including Pairwise Elimination: Difference between revisions

Further wording refinements in the intro section.
(Refined explanation of purpose of eliminating pairwise losing candidates.)
(Further wording refinements in the intro section.)
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'''Ranked Choice Including Pairwise Elimination''' (abbreviated as '''RCIPE''' which is pronounced "recipe") is an election vote-counting method that uses ranked ballots and eliminates '''pairwise losing candidates''' (elimination-round-specific [[Condorcet loser criterion|Condorcet losers]]) when they occur, and otherwise eliminates the candidate who currently has the smallest top-choice count.
 
This method modifies [[Instant-Runoff Voting|instant runoff voting]] (IRV) by adding the elimination of relativepairwise Condorcetlosing loserscandidates. This addition reduces the failure rate for the [[Independence of irrelevant alternatives|Independence of Irrelevant Alternatives]] (IIA), which is the kind of failure that occurred in the the [https://en.wikipedia.org/wiki/2009_Burlington_mayoral_election 2009 mayoral election in Burlington, Vermont].  This check for pairwise losing candidates considers all the marks on all the ballots, which contrasts with the IRV method, which does not consider all the marks on all the ballots.
 
This method further modifies simple IRV by specifying how to handle ballots on which the voter has marked more than one candidate at the same ranking level.
 
The RCIPE STV method extends the single-winner RCIPE method to fill multiple equivalent seats.
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