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User:RobLa/MAF: Difference between revisions
Step 1 (of many) involved in merging MATT and MAF. This version is just a copy of Maximum approval top-two (https://electowiki.org/w/index.php?title=Maximum_approval_top-two&oldid=10843) on top of the previous MAF article.
Psephomancy (talk | contribs) (clean up (AWB), typos fixed: avaiable → available) |
(Step 1 (of many) involved in merging MATT and MAF. This version is just a copy of Maximum approval top-two (https://electowiki.org/w/index.php?title=Maximum_approval_top-two&oldid=10843) on top of the previous MAF article.) |
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"Maximum approval top-two" or "MATT" is an approval-based primary where voters use an [[W:approval voting|approval voting]] ballot to select which candidates would be acceptable to advance to the general election. The maximum approval top-two method then selects no more than two candidates to advance to a general election.
== Rules ==
Maximum approval top-two uses the following steps:
# The candidate who receives the highest approval rating (the "front-runner") qualifies for the general election
#* Example: if there are 100 voters, and 40 approve of "A" and "B", 30 approve of only "B", and 30 approve of only "C", then
#** "B" advances to the general election, since "B" is approved by 70% of voters.
# A second candidate (the "complementary candidate"), who maximizes the approval of the electorate, also qualifies (i.e. by having the highest approval among voters that did ''not'' approve of the front-runner). If two candidates both satisfy an equal part of the remaining electorate, the candidate with the highest overall approval rating advances.
#* Example: if there are 100 voters, and 40 approve of both "A" and "B", 30 approve of only "B", and 30 approve of only "C", then
#** "B" advances with 70% approval (per step 1)
#** "C" advances (per this step). "B" satisfies 70% of the electorate, and "C" satisfies the other 30%. So, 100% of the voters will be satisfied with one of their choices in the general election.
For a system that allows for more than two candidates to advance to the general election, use [[MAF]].
(This is a voting system that was dreamed up by [[User:RobLa]], based on [http://lists.electorama.com/pipermail/election-methods-electorama.com/2018-July/001844.html these discussions on the election methods mailing list])
==History==
*2018-11-20 - first draft published on electowiki.org and as "[https://medium.com/@robla/replacing-the-jungle-primary-c1e844a5333b Replacing the jungle primary]" by [[User:RobLa]]
Full discussion history of this method and it's counterpart ([[Majority approval filter]]) can be found at [[Talk:Majority approval filter]].
=See also=
*[[Majority approval filter|Majority approval filter (MAF)]] - a primary election voting method that is guaranteed to advance all candidates receiving a majority approval score to the general election
[[Category:Approval methods]]
'''"Majority approval filter"''' or "'''MAF"''' is an approval-based primary election method that advances all candidates who are approved by a majority of the electorate, as well as often selecting one or more opposition candidates.
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