Unmanipulable majority criterion: Difference between revisions
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The '''unmanipulable majority criterion''' is a strategy-resistance voting system criterion devised by Chris Benham.<ref>{{cite web|url=http://lists.electorama.com/pipermail/election-methods-electorama.com/2008-December/088858.html|title="Unmanipulable Majority" strategy criterion (newly amended version)|website=Election-methods mailing list archives|date=2008-12-03|author=Chris Benham}}</ref> It states: |
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{{Definition|If (assuming there are more than two candidates) the ballot rules don't constrain voters to expressing fewer than three preference-levels, and A wins being voted above B on more than half the ballots, then it must not be possible to make B the winner by altering any of the ballots on which B is voted above A without raising their ranking or rating of B.}} |
{{Definition|If (assuming there are more than two candidates) the ballot rules don't constrain voters to expressing fewer than three preference-levels, and A wins being voted above B on more than half the ballots, then it must not be possible to make B the winner by altering any of the ballots on which B is voted above A without raising their ranking or rating of B.}} |