Exhausted ballot: Difference between revisions

Copied prose from w:Issues affecting the single transferable vote (this rev: <https://en.wikipedia.org/w/index.php?title=Issues_affecting_the_single_transferable_vote&oldid=1137726277>)
(Copied prose from w:Issues affecting the single transferable vote (this rev: <https://en.wikipedia.org/w/index.php?title=Issues_affecting_the_single_transferable_vote&oldid=1137726277>))
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Quoting [[w:Issues affecting the single transferable vote]] (<ref>https://en.wikipedia.org/w/index.php?title=Issues_affecting_the_single_transferable_vote&oldid=1137726277</ref>)
<blockquote>
As seen above, voters in an STV election rank candidates on a [[Ranked voting systems|preferential ballot]]. STV systems in use in different countries vary both as to ballot design and to whether or not voters are obliged to provide a full list of preferences. In jurisdictions such as the [[Republic of Ireland]] and [[Northern Ireland]] voters are permitted to rank as many or as few candidates as they wish. Consequently, voters sometimes, for example, rank only the candidates of a single party, or of their most preferred parties. A minority of voters, especially if they do not fully understand the system, might even "bullet vote", only expressing a first preference. Allowing voters to rank only as many candidates as they wish grants them greater freedom, but can also lead to some voters ranking so few candidates that their vote eventually becomes "exhausted"; that is, at a certain point during the count it can no longer be transferred and therefore loses an opportunity to influence the result. (In [[First Past the Post]] elections, many, sometimes most, votes are disregarded, as there is no opportunity to mark back-up preferences. To the extent that voters mark back-up preferences and the back-up preferences consulted - many are not consulted even if marked - the portion of votes ignored under STV is less than under First Past The Post. Back-up preferences are not consulted if the vote is cast at the start for a candidate who wins in the end as the last seat is filled, or cast for a candidate who is eliminated at the end. They are also not used if they are marked for a candidate who has already been elected or eliminated.)
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=Ballot exhaustion in RCV=
Opponents of RCV bring the concept of Discarded Ballots (Exhausted Choices / Rankings) up as an important drawback in RCV.