Exhausted ballot: Difference between revisions

Some editing of the prose to make the merged text sorta make sense. There's more work to be done here.
(Copied in text from final version of old "Exhausted ballots" article)
(Some editing of the prose to make the merged text sorta make sense. There's more work to be done here.)
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An '''exhausted ballot''' occurscan occur when a voter overvotes, undervotes, or voter ranks only candidates that are eliminated from race. Because these votes are not tabulated in the final round, that ballot does not influence the election after it becomes exhausted. The term "ballot exhaustion" refers to processing a ranked choice voting contest on a cast ballot, when that ballot becomes inactive and cannot be advanced in the tabulation for a contest because there are no further valid rankings on the ballot for ([[Exhaustedcontinuing choices]]contest )options.
 
Because these votes are not tabulated in the final round, that ballot does not influence the election after it becomes exhausted.
 
=Exhausted ballot types=
RCV (IRV) Ballot maybe be flagged as 'exhausted' for several different reasons.
 
==Exhausted Choices==
An exhausted choice occurs when a voter ranks only candidates that are eliminated from contention.
See details at [[Exhausted_choices |Exhausted choices ]]
 
=Ballot Exhaustion=
Refers to processing a ranked choice voting contest on a cast ballot, when that ballot becomes inactive and cannot be advanced in the tabulation for a contest because there are no further valid rankings on the ballot for continuing contest options.
 
See also:
* [[Exhausted_choices |Exhausted choices ]]
* [[Spoiled_ballot | Spoiled ballot]]
 
Links:
* https://www.eac.gov/sites/default/files/glossary_files/Glossary_of_Election_Terms_EAC.pdf
* https://www.aec.gov.au/about_aec/research/files/sbps-exhaustion.pdf
 
 
 
An '''exhausted ballot''' is a ballot with rankings that are not considered in rounds of an election using some variation of IRV / RCV (single winner) and [[Single Transferable Vote|Single Transferable Vote (STV)]] due to elimination in prior rounds. The ballot rankings get eliminated because ''all'' candidates who appear in the particular ballot/ranking were eliminated from the election's prior rounds of tallying. The practice of eliminating ballots from consideration is sometimes referred to as '''ballot exhaustion'''.<ref>{{Cite web |title=Ballot exhaustion |url=https://ballotpedia.org/Ballot_exhaustion |access-date=2023-02-27 |website=Ballotpedia |language=en}}</ref> Single-winner STV is sometimes referred to as "instant-runoff voting" or "ranked-choice voting".
 
==Terminology==
Single-winner STV is sometimes referred to as "instant-runoff voting" because of the way the ballot count simulates a series of runoffs, similar to an [[exhaustive ballot]] system, except that voter preferences do not change between rounds.<ref>[[User:RobLa]] quoted oldid 1141090457 of [[w:Instant-runoff voting|]]: https://en.wikipedia.org/w/index.php?title=Instant-runoff_voting&oldid=1141090457</ref><ref name="publications.parliament.uk">{{cite web |date=15 February 2001 |title=Second Report: Election of a Speaker |url=https://publications.parliament.uk/pa/cm200001/cmselect/cmproced/40/4005.htm |access-date=18 February 2008 |publisher=House of Commons Select Committee on Procedure}}<!--This ref describes similarities/differences between IRV and exhaustive ballot.--></ref> It is also known as the alternative vote, transferable vote, ranked-choice voting (RCV), single-seat ranked-choice voting, or preferential vote.
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== Other external websites ==
* See also:
* https://fairvote.org/rcv_elections_and_runoffs_exhausted_votes_vs_exhausted_voters_in_the_bay_area/
** [[Spoiled_ballot | Spoiled ballot]]
* https://ballotpedia.org/Ballot_exhaustion
* Links:
* [https://cpb-us-w2.wpmucdn.com/u.osu.edu/dist/e/1083/files/2014/12/ElectoralStudies-2fupfhd.pdf Ballot (and voter) “exhaustion” under Instant Runoff Voting: An examination of four ranked-choice elections]
** https://www.aeceac.gov.au/about_aecsites/researchdefault/files/sbps-exhaustionglossary_files/Glossary_of_Election_Terms_EAC.pdf
** https://www.aec.gov.au/about_aec/research/files/sbps-exhaustion.pdf
Legal challange:
** https://fairvote.org/rcv_elections_and_runoffs_exhausted_votes_vs_exhausted_voters_in_the_bay_area/
* https://crsreports.congress.gov/product/pdf/LSB/LSB10837
** https://ballotpedia.org/Ballot_exhaustion
** [https://cpb-us-w2.wpmucdn.com/u.osu.edu/dist/e/1083/files/2014/12/ElectoralStudies-2fupfhd.pdf Ballot (and voter) “exhaustion” under Instant Runoff Voting: An examination of four ranked-choice elections]
** https://www.aec.gov.au/about_aec/research/files/sbps-exhaustion.pdf
 
* Legal challange:
** https://crsreports.congress.gov/product/pdf/LSB/LSB10837
 
[[Category:Voting theory]]