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Monotonicity: Difference between revisions

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(Created page with " The '''monotonicity criterion''' is a voting system criterion used to evaluate both single and multiple winner ranked voting systems. A ranked voting system is '''mon...")
 
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In elections via the single-winner methods [[range voting]] and [[majority judgment]] nobody can help a candidate by reducing or removing support for them, but as they are not ''ranked'' voting systems, they are out of the monotonicity criterion's scope.
 
==Statement of Monotonicity Criteria==
 
If X is a winner under a voting rule, and one or more voters change their preferences in a way favourable to X, then X should still be a winner
 
==Instant-runoff voting and the two-round system are not monotonic==
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