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'''Ranked Pairs''' (RP) or '''Tideman''' (named after [[Nicolaus Tideman]]) is a [[voting methodsystems]] that selects a single winner using votes that express preferences. RP can also be used to create a sorted list of winners. RP passes the [[Condorcet Criterion]], and is by definition a '''[[Condorcet method]]'''. RP has many variations such as the [[Maximize Affirmed Majorities]] (MAM) and [[Maximum Majority Voting]] (MMV) voting methods.
 
If there is a candidate who is preferred over the other candidates,
when compared in turn with each of the others, RP guarantees that that candidate will win.
Because of this property, RP is (by definition) a '''[[Condorcet method]]'''.
Note that this is different from some other preference voting systems such as [[Borda count|Borda]] and
[[Instant-runoff voting]], which do not make this guarantee.
 
RP has many variations such as the [[Maximize Affirmed Majorities]] (MAM) and [[Maximum Majority Voting]] (MMV) voting methods.
Also check out other [[Condorcet method]]s.
 
== Procedure ==
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Therefore, A is the winner.
 
=== Summary ===
 
In the example election, the winner is Nashville.
This would be true for any [[Condorcet method]].
Using the [[first-past-the-post]] system and some other systems, Memphis would have won the election by having the most people, even though Nashville won every simulated pairwise election outright. Using [[Instant-runoff voting]] in this example would result in Knoxville winning, even though more people preferred Nashville over Knoxville.
 
 
== External Resources ==
* [http://groups.yahoo.com/group/election-methods-list/ A mailing list containing technical discussions about election methods]
* [http://electionmethods.org/ electionmethods.org]
* [http://condorcet.org/rp Ranked Pairs]
* [http://accurate-democracy.com/ Accurate Democracy]
* [http://www.alumni.caltech.edu/~seppley The Maximize Affirmed Majorities voting procedure (MAM)]
* [http://radicalcentrism.org/majority_voting.html Maximum Majority Voting]
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