Coombs' method: Difference between revisions

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The '''Coombs' method''', created by [[Clyde Coombs]], is a [[voting system]] used for single-winner ~~[[election]]s~~ [[preferential voting|in which each voter rank-orders the candidates]]. It sort of works like [[Instant Runoff Voting]] (a US term; it is known as Preferential Voting in some countries) in reverse.

The '''Coombs' method''', created by Clyde Coombs, is a [[voting system]] used for single-winner elections [[preferential voting|in which each voter rank-orders the candidates]]. It sort of works like [[Instant Runoff Voting]] (a US term; it is known as Preferential Voting in some countries) in reverse.

==Procedures==

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==An example==

Imagine an election to choose the capital of [[Tennessee]], a state in the United States that is over 500 miles east-to-west, and only 110 miles north-to-south. Let's say the candidates for the capital are Memphis (on the far west end), Nashville (in the center), Chattanooga (129 miles southeast of Nashville), and Knoxville (on the far east side, 114 miles northeast of Chattanooga). Here's the population breakdown by metro area (surrounding county):

Imagine an election to choose the capital of Tennessee, a state in the United States that is over 500 miles east-to-west, and only 110 miles north-to-south. Let's say the candidates for the capital are Memphis (on the far west end), Nashville (in the center), Chattanooga (129 miles southeast of Nashville), and Knoxville (on the far east side, 114 miles northeast of Chattanooga). Here's the population breakdown by metro area (surrounding county):

[[Image:CondorcetTennesee.png]]</div>

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==Potential for tactical voting==

The Coombs' method is vulnerable to three strategies: [[tactical voting|compromising, push-over]] and [[strategic nomination|teaming]].

==See also==

* [[List of democracy and elections-related topics]]

==External links==

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[[Category:Voting systems]]