STAR voting: Difference between revisions

{{wikipedia}}'''STAR voting'''<ref>{{Cite web |url = https://www.starvoting.us/ |title = STAR voting - front page |last = |first = |date = |website = starvoting.us |publisher = |access-date = 2018-7-10 |quote = STAR voting. }}</ref><ref>{{Cite news |url = https://ivn.us/2018/07/09/revolutionary-new-voting-method-bolstered-16000-voters-oregon-county/ |title = Revolutionary New Voting Method Bolstered By over 16,000 Voters in Oregon County |date = 2015-07-09 |newspaper = The Independent Voter Network |access-date = 2016-7-10 }}</ref> is an [[Voting method|electoral system]] [[:Category:Single-winner voting methods|for single-seat elections]]. The name stands for "score then automatic runoff", referring to the fact that this system is a combination of [[score voting]] and [[runoff voting]]. It is a type of [[cardinal voting]] electoral system. It was previously known as '''score runoff voting''' ('''SRV''').

The concept was first proposed publicly in October 2014 by Center for Election Science co-founder Clay Shentrup.<ref>{{Cite web |url = https://groups.google.com/d/msg/electionscience/JK82EFn7nrs/Lble3V2CW4UJ |title = Google Groups |website = groups.google.com |access-date = 2017-04-05 }}</ref> The runoff step was introduced in order to correct for strategic distortion in ordinary score voting,<ref>{{Cite web |url = https://ivn.us/2016/12/08/score-runoff-voting/ |title = Score Runoff Voting: The New Voting Method that Could Save Our Democratic Process |date = 2016-12-08 |website = IVN.us |access-date = 2017-04-05 }}</ref> such as [[Bullet voting]] and tactical maximization.<ref>{{Cite news |url = http://equal.vote/strategic_srv |title = Strategic SRV? - Equal Vote Coalition |work = Equal Vote Coalition |access-date = 2017-04-05 }}</ref> Thus, 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> The movement to implement STAR voting was centered in [[w:Oregon|Oregon]], and in July 2018, supporters submitted over 16000 signatures for a ballot initiative in [[w:Lane County, OR|Lane County]]. This is enough to qualify this proposal to be on the ballot, if the measure is deemed well-drafted.<ref>{{Cite news |url = https://ivn.us/2018/07/09/revolutionary-new-voting-method-bolstered-16000-voters-oregon-county/ |title = Revolutionary New Voting Method Bolstered By over 16,000 Voters in Oregon County |date = 2015-07-09 |newspaper = The Independent Voter Network |access-date = 2016-7-10 }}</ref>

The frontrunners are Nashville and Chattanooga. Of the two, Nashville is preferred by 68% (42+26) to 32% (15+17), so Nashville, the capital in real life, likewise wins in the example. In this particular case, there is no way for any single city of voters to get a better outcome through tactical voting. However, Chattanooga and Knoxville voters combined could vote strategically to make Chattanooga win; while Memphis voters could defend against that strategy and ensure Nashville still won by strategically giving Nashville a higher rating.

For comparison, note that traditional first-past-the-post would elect Memphis, even though most citizens consider it the worst choice, because 42% is larger than any other single city. [[Instant-runoff voting#Tennessee capital election|Instant-runoff voting]] would elect the 2nd-worst choice (Knoxville), because the central candidates would be eliminated early. In [[Approval voting]], with each voter selecting their top two cities, Nashville would win because of the significant boost from Memphis residents. A [[Two-round system#Example II|two-round system]] would have a runoff between Memphis and Nashville where Nashville would win.

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