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  2. Condorcet method - Wikipedia

    en.wikipedia.org/wiki/Condorcet_method

    Example Condorcet method voting ballot. Blank votes are equivalent to ranking that candidate last. A Condorcet method (English: / k ɒ n d ɔːr ˈ s eɪ /; French: [kɔ̃dɔʁsɛ]) is an election method that elects the candidate who wins a majority of the vote in every head-to-head election against each of the other candidates, whenever there is such a candidate.

  3. Condorcet winner criterion - Wikipedia

    en.wikipedia.org/wiki/Condorcet_winner_criterion

    Approval voting is a system in which the voter can approve of (or vote for) any number of candidates on a ballot. Approval voting fails the Condorcet criterion Consider an election in which 70% of the voters prefer candidate A to candidate B to candidate C, while 30% of the voters prefer C to B to A.

  4. Voting criteria - Wikipedia

    en.wikipedia.org/wiki/Voting_criteria

    A voting system complying with the Condorcet loser criterion will never allow a Condorcet loser to win. A Condorcet loser is a candidate who can be defeated in a head-to-head competition against each other candidate. [11] (Not all elections will have a Condorcet loser since it is possible for three or more candidates to be mutually defeatable ...

  5. The End of the Voting Methods Debate - AOL

    www.aol.com/news/end-voting-methods-debate...

    A voting method is the procedure at the heart of an election that specifies what information is to be gathered from voters, and how that collected information is to be utilized to determine the ...

  6. Comparison of voting rules - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_voting_rules

    They looked at Condorcet cycles in voter preferences (an example of which is A being preferred to B by a majority of voters, B to C and C to A) and found that the number of them was consistent with small-sample effects, concluding that "voting cycles will occur very rarely, if at all, in elections with many voters."

  7. Multiple districts paradox - Wikipedia

    en.wikipedia.org/wiki/Multiple_districts_paradox

    The Kemeny-Young method satisfies ranking consistency; that is, if the electorate is divided arbitrarily into two parts and separate elections in each part result in the same ranking being selected, an election of the entire electorate also selects that ranking. In fact, it is the only Condorcet method that satisfies ranking consistency.

  8. Minimax Condorcet method - Wikipedia

    en.wikipedia.org/wiki/Minimax_Condorcet_method

    In voting systems, the Minimax Condorcet method is a single-winner ranked-choice voting method that always elects the majority (Condorcet) winner. [1] Minimax compares all candidates against each other in a round-robin tournament, then ranks candidates by their worst election result (the result where they would receive the fewest votes).

  9. Arrow's impossibility theorem - Wikipedia

    en.wikipedia.org/wiki/Arrow's_impossibility_theorem

    Condorcet believed voting rules should satisfy both independence of irrelevant alternatives and the majority rule principle, i.e. if most voters rank Alice ahead of Bob, Alice should defeat Bob in the election. [20] Unfortunately, as Condorcet proved, this rule can be intransitive on some preference profiles. [28] Thus, Condorcet proved a ...