STLR voting: Difference between revisions

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== Invention and Motivation==
 
The concept was invented by [[Equal Vote Coalition]] Director [[Keith Edmonds]] and was first proposed publicly in July 2020<ref>{{Cite web|url=https://forum.electionscience.org/t/a-new-star-variant/708/28|title=CES Forum Post|last=|first=|date=Monday, August 3, 2020 at 7:40:16 PM Coordinated Universal Time|website=forum.electionscience.org|url-status=livedead|archive-url=https://www.votingtheory.org/archive/posts?where=%7B%22topic_id%22%3A708%7D|archive-date=?|access-date=2022-08-14|publisher=VotingTheory.org}}</ref>.
 
The originally proposed runoff method was not levelling but the normalization from [[Instant Runoff Normalized Ratings]] (IRNR). Levelling chosen to be better shortly after. The version with IRNR normalization was previously and independently invented by user lucasvb on Reddit<ref>{{Cite web|url=https://www.reddit.com/r/EndFPTP/comments/bl6zrq/score_then_automatic_cumulative_runoff/|title=score_then_automatic_cumulative_runoff|last=|first=|date=May 6, 2019|website=|url-status=livedead|archive-url=https://webcache.googleusercontent.com/search?q=cache%3Ahttps%3A%2F%2Fwww.reddit.com%2Fr%2FEndFPTP%2Fcomments%2Fbl6zrq%2Fscore_then_automatic_cumulative_runoff%2F|archive-date=2022-05-01|access-date=2022-08-14}}</ref>. The idea came from an attempt to solve the issue of arbitrary scale in [[Score voting]]. [[STAR voting]] solves this with the majoritarian runoff but as a result makes the system a majoritarian system.
 
=== Scale in Score Voting ===
 
When analyzing the ballots from the French studies<ref>“How voters use grade scales in evaluative voting” European Journal of Political Economy 55 (2018) 14–28, doi: 10.1016/j.ejpoleco.2017.09.006, Baujard, Gavrel, Igersheim, Laslier, and Lebon.</ref> <ref>Baujard, Antoinette & Igersheim, Herrade & Lebon, Isabelle & Gavrel, Frederic & Laslier, Jean-Francois. (2013). Who's Favored by Evaluative Voting? An Experiment Conducted During the 2012 French Presidential Election. Electoral Studies. 34. 10.1016/j.electstud.2013.11.003. </ref> and primary election for the Independent Party of Oregon <ref>{{Cite web|url=https://www.kdrv.com/content/news/Oregon-Independent-voters-favor-Biden-over-Trump-but-other-Republicans-over-Democrats-570644271.html|title=Oregon Independent voters favour Biden over Trump|last=|first=|date=|website=|url-status=livedead|archive-url=https://web.archive.org/web/20200528205542/https://www.kdrv.com/content/news/Oregon-Independent-voters-favor-Biden-over-Trump-but-other-Republicans-over-Democrats-570644271.html|archive-date=2020-05-28|access-date=2022-08-14}}</ref> a well known criticism of score voting arose. This is that some voters tend to be too honest and to not score any candidate at the <math>MAX</math> and <math>MIN</math> values. In a score election the amount of influence a voter has is the difference between the maximum and minimum score they give a candidate. The standard response is that voters are told how the system works and it is up to them to decide how to use the scores.
 
A related issue is that of deciding who gets a score of 0. Only the worst or just those unfavoured? What is typically advised is for voters to give their the maximum value to their favourite and zero to any candidate they do not support.
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=== Problem of being Majoritarian ===
 
STAR is intended to be a compromise between [[score voting]] and [[instant runoff voting]].<ref>{{Cite news |url = http://equal.vote |title = Equal Vote Coalition |work = Equal Vote Coalition |access-date = 2017-04-05 }}</ref>. It solves the above issue of scale because as long as a preference is shown between the two candidates in the runoff, then their influence is maximized. It is a majoritarian system as shown in the example
 
<poem>Red 51%: A[5] B[4] C[0] D[0]
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===Losing favourite===
 
Suppose a voter in a [0,5] system gave candidates A, B and C the following scores; A:5, B:1, C:0. Clearly A is their favourite and they have expressed this. However, if A is unviable and the top two are B and C they have ruined their influence by giving B only a score of 1. Proponents of score voting arbgueargue that an informed voter should know the polling data and vote strategically as A:5, B:5, C:0. This is wrong for two reasons. Firstly, incentive to vote dishonestly should never be encouraged. Secondly, polls can be wrong or manipulated. If B was supported by the media then they could have their standing inflated so that people would vote for them as a lesser evil. In both STLR and STAR voting. The runoff between B and C converts the ballot to B:5, C:0 without any need for the voter to vote strategically.
 
=== Preserving Utility===
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==References==
 
[[Category:Cardinal voting methods]]
[[Category:Monotonic electoral systems]]
[[Category:Runoff-based voting methods]]
[[Category:Single-winner voting methods]]