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Instant-runoff voting: Difference between revisions

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20 A=B </blockquote>If fractional equal-ranking is allowed, the number of votes each candidate has is 50, while if whole-votes equal-ranking is used instead, each candidate has 60 votes. However, they each have only 40 votes in their pairwise matchup.) In addition, an upper bound can be found for how many votes each candidate has in their pairwise matchups against other candidates by looking at how many active votes there are in a particular IRV round; for example, if Candidate A has 560 votes in an IRV round, Candidate B has 270, and all other candidates combined have 170 votes, then not only does Candidate A have a lower bound of getting 560 out of 1000 votes against B and all other candidates, guaranteeing A pairwise beats all of them, but the upper bound on the number of votes any of these candidates can get is 440, because that's how many active votes there are that don't go to A in that round.
 
Example where IRV with whole votes equal ranking can give different results based on the winning rules used: <blockquote>45 A>B>C
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