Bottom-Two-Runoff IRV: Difference between revisions
Added text about BTR-IRV being distinct from Smith//IRV to clear up possible confusion on r/EndFPTP
(Moved clone independence failure to new section, populated the section, and added DMTCBR failure) |
(Added text about BTR-IRV being distinct from Smith//IRV to clear up possible confusion on r/EndFPTP) |
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{{rename|from=Bottom-Two-Runoff IRV|to=Bottom-two-runoff-instant-runoff-voting method|reason=To give the article a name more likely to be accepted on [[English Wikipedia]]}}
The '''"bottom-two-runoff-instant-runoff-voting method'''" (or "'''BTR-IRV method'''") is an [[election method]] that selects a single winner using votes that express ranked preferences. It is a [[Condorcet-IRV hybrid_methods|Condorcet-IRV hybrid]] distinct from other hybrids like [[Smith//IRV]].
The process: take the two options with the fewest first preference votes. The pairwise loser out of those two options is eliminated, and the next preferences from those ballots are redistributed. This process repeats until there is only one option remaining, and that remaining option is the winner.
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Variations of BTR-IRV could be considered to parallel other [[:Category:Condorcet-IRV hybrid methods|Condorcet-IRV hybrid methods]]; one such variation would be "Repeat both steps until only one candidate remains: Eliminate everyone not in the Smith set, then do a pairwise elimination between the two candidates with the fewest 1st choices".
BTR-IRV is not the same as Smith-IRV or Benham's method, as they don't pass the same criteria.
==External links==
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