Participation criterion - Definition and Overview

Statement of Criterion

Adding one or more ballots that vote X over Y should never change the winner from X to Y.

Complying Methods

Plurality voting, Approval voting, Cardinal Ratings, Borda count, and Woodall's DAC method (http://www.mcdougall.org.uk/VM/ISSUE6/P4.HTM) all pass the Participation Criterion. Condorcet methods, Majority Choice Approval, and IRV fail.

Some parts of this article are derived with permission from text at http://electionmethods.org

See Also

• Voting system
• Monotonicity criterion
• Condorcet Criterion
• Generalized Condorcet criterion
• Strategy-Free criterion
• Generalized Strategy-Free criterion
• Strong Defensive Strategy criterion
• Weak Defensive Strategy criterion
• Favorite Betrayal criterion
• Summability criterion

External Links

• Election Methods Education and Research Group (http://electionmethods.org/)