Difference between revisions of "Majority Approval Voting"

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Majority Approval Voting (MAV) is a modern, [[evaluative]] version of [[Bucklin voting]]. Voters rate each candidate into one of a predefined set of ratings or grades, such as the letter grades "A", "B", "C", "D", and "F". As with any Bucklin system, first the top-level ("A") votes for each candidate are tallied, and if one candidate has a majority, they win. If not, the lower levels are added to the tallies, one at a time (ie, "B", then "C", etc.) until some candidate or candidates have a majority. If there are more than one candidates with a majority, the one of those who had the highest tally at the next level up (previous step) is the winner. If there are more than one candidates with a majority at the first step, then the one with the largest majority is the winner.
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Majority Approval Voting (MAV) is a modern, [[evaluative]] version of [[Bucklin voting]]. Voters rate each candidate into one of a predefined set of ratings or grades, such as the letter grades "A", "B", "C", "D", and "F". As with any Bucklin system, first the top-grade ("A") votes for each candidate are counted as approvals. If one or more candidate has a majority, then the highest majority wins. If not, votes at next grade down ("B") are tentatively added to each candidate's approval scores. If there is one candidate with a majority, they win; if there are more than one with a majority, the "B" votes are removed and the highest sub-majority wins; and if there are still no candidates with a majority, the process continues with the "C", "D", and finally "F" votes.
  
The grades or ranks for this system could be numbers instead of letter grades. Terms such as "graded MAV" or "rated MAV" can be used to distinguish these possibilities if necessary. In either case, descriptive labels such as "A:Unconditional support" are recommended.
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The grades or ranks for this system could be numbers instead of letter grades. Terms such as "graded MAV" or "rated MAV" can be used to distinguish these possibilities if necessary. In either case, descriptive labels such as are recommended. For instance, for the letter grades:
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*A: Unconditional support
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*B: Support if there are no other majorities above "C"
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*C: Support if there are no other majorities above "D"
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*D: Oppose unless there are no other majorities at all.
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*F: Unconditional opposition.
  
 
This system was promoted and named due to the confusing array of Bucklin and Median proposals. It is intended to be a relatively generic, simple Bucklin option with good resistance to the [[chicken dilemma]]. It was named by a [http://lists.electorama.com/pipermail/election-methods-electorama.com/2013-June/031938.html poll] on the electorama mailing list in June 2013.
 
This system was promoted and named due to the confusing array of Bucklin and Median proposals. It is intended to be a relatively generic, simple Bucklin option with good resistance to the [[chicken dilemma]]. It was named by a [http://lists.electorama.com/pipermail/election-methods-electorama.com/2013-June/031938.html poll] on the electorama mailing list in June 2013.

Revision as of 13:41, 18 June 2013

Majority Approval Voting (MAV) is a modern, evaluative version of Bucklin voting. Voters rate each candidate into one of a predefined set of ratings or grades, such as the letter grades "A", "B", "C", "D", and "F". As with any Bucklin system, first the top-grade ("A") votes for each candidate are counted as approvals. If one or more candidate has a majority, then the highest majority wins. If not, votes at next grade down ("B") are tentatively added to each candidate's approval scores. If there is one candidate with a majority, they win; if there are more than one with a majority, the "B" votes are removed and the highest sub-majority wins; and if there are still no candidates with a majority, the process continues with the "C", "D", and finally "F" votes.

The grades or ranks for this system could be numbers instead of letter grades. Terms such as "graded MAV" or "rated MAV" can be used to distinguish these possibilities if necessary. In either case, descriptive labels such as are recommended. For instance, for the letter grades:

  • A: Unconditional support
  • B: Support if there are no other majorities above "C"
  • C: Support if there are no other majorities above "D"
  • D: Oppose unless there are no other majorities at all.
  • F: Unconditional opposition.

This system was promoted and named due to the confusing array of Bucklin and Median proposals. It is intended to be a relatively generic, simple Bucklin option with good resistance to the chicken dilemma. It was named by a poll on the electorama mailing list in June 2013.