Majority Choice Approval: Difference between revisions
→How does it work?
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If one and only one candidate is given the highest rating by an [[absolute majority]] of voters, that candidate wins. If not, the second-highest rating is added to each candidate's vote total; again, if there is only one candidate with a majority they win. This process continues until some candidate has a majority.
Unfortunately,
* MCA-A: Most approved candidate (most votes above lowest possible rating). This is also called "Majority Top//Approval", or MTA.
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* MCA-M: Candidate with the highest score at the rating level where an absolute majority first appears. This system is equivalent to traditional [[Bucklin voting]].
* MCA-S: [[Range voting|Range]] or Score winner. The candidate with the highest average (mean) score is declared winner, where candidates are given 0 points for the lowest rating (not rank), 1 point for the second-lowest, etc.
* MCA-R: Runoff. Two finalists are chosen by one of the methods above or an equality-allowed Condorcet method over the given ballots. The finalists are then measured against each other using one of the following methods:
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== Criteria compliances ==
All MCA variants satisfy the [[Plurality criterion]], the [[
All of the methods are [[Summability criterion|summable]] for counting at the precinct level. Only MCA-IR actually requires a matrix (or, possibly two counting rounds), and is thus "[[Summability criterion|summable for k=2]]"; the others require only O(N) tallies, and are thus "[[Summability criterion|summable for k=1]]".
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