Compliant Methods
Instant-runoff voting, Approval voting and some election methods that comply with the Condorcet criterion such as Ranked Pairs and Schulze also meet independence of clones.
The interpretation of the term "set of clones" for scored voting systems is controversial. If clones are candidates that are considered nearly identical by the voters, range voting and Majority Judgment satisfy the criterion. If clones also include candidates that are still similar but clearly superior to an existing candidate, that superior clone can win in range voting, even if no inferior clone of that candidate would have won. However, since range voting and Majority Judgment satisfy the Independence of irrelevant alternatives criterion, the addition of clones never helps or harms candidates who are already present.
Some of the other methods that fail the criterion are the Borda count, Minimax, the Kemeny–Young method, Copeland's method, the Bucklinvote, the plurality vote, and the two-round system.
Read more about this topic: Independence Of Clones Criterion
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