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Truncation: Difference between revisions
Added #Ballot exhaustion section, and placed hatnote link to the "Exhausted ballot" article
(Created page with "Truncation is when a voter votes honestly, but doesn't show some of their lower preferences. In the extreme case, it becomes bullet voting, where the voter only indicates thei...") |
(Added #Ballot exhaustion section, and placed hatnote link to the "Exhausted ballot" article) |
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Truncation is when a voter votes honestly, but doesn't show some of their lower preferences. In the extreme case, it becomes bullet voting, where the voter only indicates their [[
== Ballot exhaustion ==
{{main|Exhausted ballot}}
One risk of truncation in [[ranked-choice voting]] is "ballot exhaustion", due to all of the expressed preferences being eliminated in early rounds of said election. The voter may have had the opportunity to express their preference between some of the less preferred candidates in the election, but chose not to express a preference by leaving lower rankings blank. Note that in some jurisdictions that use ranked-choice voting, voters may be limited to three or four rankings for their favorite candidates, and may not have room on their ballot to rank the candidates who advance to the later rounds of counting.
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{{main|Participation criterion}}
A variant of the [[Participation criterion]] or [[Independence of Irrelevant Ballots]] offers one way of justifying [[
{{ballots|
30+2: A>B
31: B ▼
49: C▼
}}
If 2 of the 32: A>B voters show up and bullet vote A, then B is eliminated and then C wins. But if they don't vote, then A is eliminated and then B wins.▼
▲31 B
[[Category:Voting theory]]
▲49 C
[[Category:Voter strategy]]
▲If 2 of the 32 A>B voters show up and bullet vote A, then B is eliminated and then C wins. But if they don't vote, then A is eliminated and then B wins.
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