Instant-runoff voting: Difference between revisions
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=== Voting === |
=== Voting === |
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Each voter ranks at least one candidate in [[Preferential voting|order of preference]]. In most Australian elections, voters are required to rank all candidates. In other elections, votes may be "truncated", for example if the voter only ranks his first five choices. |
Each voter ranks at least one candidate in [[Preferential voting|order of preference]]. In most Australian elections, voters are required to rank all candidates. In other elections, votes may be "[[truncation|truncated]]", for example if the voter only ranks his first five choices. |
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=== Counting the votes === |
=== Counting the votes === |
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Also consider batch elimination: if some batch of candidates can be eliminated that collectively have fewer votes than some other candidate. Example vote totals: 30 A 19 B 5 C 4 D 6 E. Because C, D, and E's collective 15 votes can't overtake B's 19 votes, all 3 can be eliminated at once without changing the result. |
Also consider batch elimination: if some batch of candidates can be eliminated that collectively have fewer votes than some other candidate. Example vote totals: 30 A 19 B 5 C 4 D 6 E. Because C, D, and E's collective 15 votes can't overtake B's 19 votes, all 3 can be eliminated at once without changing the result. |
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== Where IRV is used == |
== Where IRV is used == |
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