Majority Choice Approval: Difference between revisions

imported>Homunq
imported>Homunq
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All of the methods are [[Summability criterion|matrix-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]]".
 
The [[Participation criterion]], [[Summability criterion]], and [[Later-no-harm criterion]] are not satisfied by any MCA variant, although MCA-P only fails Participation if the additional vote causes an approval majority.
 
Other criteria are satisfied by some, but not all, MCA variants. To wit:
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