Single transferable vote: Difference between revisions

Added note about LIIA reducing the chaos of STV-CLE methods.
(Added note about LIIA reducing the chaos of STV-CLE methods.)
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=== Ways of dealing with equal rankings ===
* Disallowing them, requiring full rankings.
* Counting a ballot with N top-ranked candidates as a single vote for one of them chosen at random. This approach could be used for a manual count with a large number of ballots to make the counting process easier. There's no reason to use it with computer counting, and it shouldn't be used if there are only a few ballots to count.
* ER-IRV (fractional): Counting a ballot with N top-ranked candidates as 1/N of a vote for each candidate.
* ER-IRV (whole votes) or Approval-IRV: Giving one vote to each equally-top-ranked candidate. Can optionally be combined with a suggestion that ballots that equally rank candidates shouldn't be able to prevent the elimination of those candidates.<ref name="reddit 2011">{{cite web | title=Proportionality failure in STV with equal-ranks with whole votes : EndFPTP | website=reddit | date=2019-12-05 | url=https://www.reddit.com/r/EndFPTP/comments/e6bt6s/proportionality_failure_in_stv_with_equalranks/f9thuy4/?context=8&depth=9 | access-date=2020-02-10}}</ref>
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=== Ways of choosing a candidate to eliminate ===
* Standard STV: Eliminate the candidate with the fewest top-choice votes.
* [[BTR-STV]]: Eliminate the pairwise loser of the bottom two candidates. (meetsMeets the [[Condorcet criterion]] in single-winner elections).
* [[Benham's method|Benham]]: If the candidate with the fewest top-choice votes beats every other remaining candidate pairwise, eliminate the candidate with the next fewest top-choice votes. Meets the [[Condorcet criterion]] in single-winner elections.
* [[STV-CLE]]: Eliminate the loser of a [[Condorcet ranking]] or a [[Condorcet method]]'s ranking. Using a Condorcet method that passes [[local independence of irrelevant alternatives]] can lend additional stability to the STV method.
 
=== Methods of transferring votes from an eliminated candidate === <!-- Meek, Warren, Gregory, random transfer go here, or into "transferring excess votes", at some point -->
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