Independence of the least/most preferred: Difference between revisions

Independence of the least/most preferred (view source)

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Revision as of 15:48, 29 July 2020 (view source) Aldo Tragni (talk \| contribs) (Created page with "Independence of the least/most preferred (ILMP) is satisfied when: By adding a vote where candidate X has the '''worst''' possible rating (or rank), then that vote doesn't '...")		Latest revision as of 15:03, 22 June 2022 (view source) Kristomun (talk \| contribs) m (Linked mono-add-top to its own article.)
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Line 1: Independence of the least/most preferred (ILMP) is satisfied when: ByILP: by adding a vote where candidate X has the '''worst''' possible rating (or rank), then that vote doesn't '''increase''' the winning chance of X. and ByIMP: by adding a vote where candidate X has the '''best''' possible rating (or rank), then that vote doesn't '''decrease''' the winning chance of X. This criterion must apply regardless of how the other candidates are rated. Meeting these criterion favors the use of intermediate ratings (if present in the voting system), reducing ~~tactics~~strategies such as [[Tactical_voting#Definitions\|min-maxing]]. Specifically, IMP avoids rating minimization, while ILP avoids rating maximization, and it's better. Douglas Woodall's terms for these criteria are [[Mono-add-top\|mono-add-top]] for IMP and [[Monotonicity#Woodall's_monotonicity_criteria\|mono-remove-bottom]] for ILP. [[Category:Voting system criteria]]