Proportional representation: Difference between revisions

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|[[Stable winner set]]
|Unknown whether a Hare-stable winner set always exists
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=== Criticisms ===
Some common criticisms of [[STV]] (which would likely hold for many other nonpartisan PR methods) are that it is too complex in terms of filling out the ballot and tabulation, that it takes too long to count compared to partisan PR methods (many of which are [[Precinctprecinct-summable]] due to being based on [[FPTP]]), and that it can even make representatives parochialist and focused on representing their multi-member districts rather than the state or nation as a whole. Note that this last criticism is inapplicable when nonpartisan PR methods are proposed for a single national/statewide district, though this is usually not proposed or done (with the exception of some 21-seaters in Australia).
 
== Alternatives ==
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The party list case of a proportional voting method is what type of [[Party list]] allocation method it becomes equivalent to when voters vote in a "Party list"-like manner (i.e. they give maximal support to some candidates and no support to all others, as if voting on party lines). Generally, the party list case of a PR method will either be a [[Divisor method|divisor method]], such as [[D'Hondt]], or a [[Largest remainder method]], such as [[Hamilton]]. PR methods can generally be split into two categories: sequential (one winner is elected at a time) and optimal (every possible winner set is compared to each other and the best one is chosen).
 
Almost all sequential PR methods can have a single-winner method done to elect the final seat; this is because at that point there is only one seat left to elect. See [[Single transferable vote#Deciding the election of the final seat]] for an example. [[Condorcet methods]] and [[STAR voting]] can be made to work with PR methods in this way.
 
See the [[combinatorics]] article for more information.