User:RobLa/MAF: Difference between revisions
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Full discussion history of this method can be found at [[Talk:Majority approval filter]] |
Full discussion history of this method can be found at [[Talk:Majority approval filter]] |
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= See also = |
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* [[Maximum approval top-two]] (MATT) - a simplification of MAF that is guaranteed to advance no more than two candidates. |
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[[Category:Approval methods]] |
[[Category:Approval methods]] |
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Revision as of 23:20, 22 November 2018
"majority approval filter" or "MAF" is an approval-based primary that would typically select two candidates to advance to a general election.
Rules
Majority approval filter 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.
- 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
- 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.
- 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
- All candidates who receive over 50% approval ("majority approval candidates") also qualify for the general election
- Example: if there are 100 voters, and 50 approve of "A" and "B", 20 approve of only "B", and 30 approve of only "C", then :
- "B" advances with 70% approval (per step 1)
- "C" advances, satisfying the other 30% of the electorate, making the total 100% (step 2)
- "A" advances as well (having achieved 50% approval)
- Example: if there are 100 voters, and 50 approve of "A" and "B", 20 approve of only "B", and 30 approve of only "C", then :
History of MAF
- 2018-11-20 - first draft published on electowiki.org and as "Replacing the jungle primary" by User:RobLa
Full discussion history of this method can be found at Talk:Majority approval filter
See also
- Maximum approval top-two (MATT) - a simplification of MAF that is guaranteed to advance no more than two candidates.