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Stable Voting
Winner membership is PSPACE-complete, even with distinct margins.
No entries match.
Missing coverage does not mean an open problem.
Foundations above · related tasks below
Rules under specified models
Which properties hold?
About the ballot models
† Approval and Score use explicitly stated cardinal or dichotomous models. Their native criteria are defined in each marked cell and are not unrestricted ranked-ballot guarantees.
Choose 2–3 rules
Choose up to three models. Each keeps its ballot and tie conventions.