43-705: Kiora is a locality in the Eurobodalla Shire , New South Wales , Australia. It is located about 11 km west of Moruya on the road to Araluen at the point where the Deua River becomes estuarine and changes its name to the Moruya River . At the 2016 census , it had a population of 54. Its name derives from the Kiora House, which belonged to John Hawdon . It had a public school from 1868 to 1928. This South Coast geography article
86-688: A center squeeze , which may sometimes prevent the election of a Condorcet winner. Whilst the Marquis de Condorcet early on showed that it did not satisfy his Condorcet winner criterion , which it may fail under certain scenarios, instant-runoff voting satisfies many other majoritarian criteria, such as the majority criterion , mutual majority criterion and the Condorcet loser criterion . Advocates have argued these properties are positive, because voting rules should encourage candidates to focus on their core support or political base, rather than building
129-508: A broad coalition. They also note that in countries like the United Kingdom without primaries or runoff elections , IRV can prevent spoiler effects by eliminating minor-party candidates in early rounds, and that unlike plurality, it is not affected by the presence of duplicate candidates (clones) . In instant-runoff voting, as with other ranked voting rules, each voter orders candidates from first to last. The counting procedure
172-593: A candidate who nevertheless remains more preferred by voters. For example, in the 2009 Burlington, Vermont, mayoral election , if the Republican candidate who lost in the final instant runoff had not run, the Democratic candidate would have defeated the winning Progressive candidate. In that sense, the Republican candidate was a spoiler—albeit for an opposing Democrat, rather than some political ally—even though leading in first choice support. This also occurred in
215-480: A class of instant runoff- Condorcet hybrids. IRV is also completely immune to the burying strategy: ranking a strong opposition candidate lower can't get one's preferred candidate elected. Tactical voting in IRV seeks to alter the order of eliminations in early rounds, to ensure that the original winner is challenged by a stronger opponent in the final round. For example, in a three-party election where voters for both
258-411: A majority of votes. Two other books on American parliamentary procedure, The Standard Code of Parliamentary Procedure and Riddick's Rules of Procedure , take a similar stance. The term instant-runoff voting is derived from the name of a class of voting methods called runoff voting. In runoff voting voters do not rank candidates in order of preference on a single ballot. Instead a similar effect
301-616: A majority. Compared to a plurality voting system that rewards only the top vote-getter, instant-runoff voting mitigates the problem of wasted votes . However, it does not ensure the election of a Condorcet winner , which is the candidate who would win a direct election against any other candidate in the race. All forms of ranked-choice voting reduce to plurality when all ballots rank only one candidate. By extension, ballots for which all candidates ranked are eliminated are equivalent to votes for any non-winner in plurality, and considered exhausted ballots . Some political scientists have found
344-415: A marginal candidate are strongly encouraged to instead vote for a more popular candidate who shares some of the same principles, since that candidate has a much greater chance of being elected and a vote for the marginal candidate will not result in the marginal candidate's election. An IRV method reduces this problem, since the voter can rank the marginal candidate first and the mainstream candidate second; in
387-747: A result of American influence, the term ranked-choice voting is often used in Canada as well. American NGO FairVote has promoted the terminology "ranked-choice voting" to refer to IRV, a choice that has caused controversy and accusations that the organization is attempting to obscure the existence of other ranked-choice methods that could compete with IRV. IRV is occasionally referred to as Hare's method (after Thomas Hare ) to differentiate it from other ranked-choice voting methods such as majority-choice voting , Borda , and Bucklin , which use weighted preferences or methods that allow voter's lower preference to be used against voter's most-preferred choice. When
430-567: Is Cr. Mathew Hatcher, an unaligned politician. He is also the youngest mayor, in the modern-era, ever for the Eurobodalla. The Deputy Mayor, Cllr Alison Worthington, is the first female Deputy Mayor for the Eurobodalla. The shire chambers are located in the town of Moruya in the central part of the Shire. Other major towns within the shire include Batemans Bay and Narooma . Smaller towns, suburbs and hamlets include: The area which
473-442: Is a single-winner , multi-round elimination rule that uses ranked voting to simulate a series of runoffs with only one vote. In each round, the candidate with the fewest votes counting towards them is eliminated, and the votes are transferred to their next available preference until one of the options reaches a majority of the remaining votes. Instant runoff falls under the plurality-with-elimination family of voting methods, and
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#1732801839344516-641: Is a stub . You can help Misplaced Pages by expanding it . Eurobodalla Shire Eurobodalla Shire is a local government area located in the South Coast region of New South Wales , Australia . The Shire is located in a largely mountainous coastal region and situated adjacent to the Tasman Sea , the Princes Highway and the Kings Highway . The mayor of Eurobodalla Shire Council
559-540: Is achieved by using multiple rounds of voting. All multi-round runoff voting methods allow voters to change their preferences in each round, incorporating the results of the prior round to influence their decision, which is not possible in IRV. The runoff method closest to IRV is the exhaustive ballot . In this method—familiar to fans of the television show American Idol —one candidate is eliminated after each round, and many rounds of voting are used, rather than just two. Because holding many rounds of voting on separate days
602-501: Is described in Robert's Rules of Order Newly Revised as an example of ranked-choice voting that can be used to elect officers. Robert's Rules note that ranked-choice systems (including IRV) are an improvement on simple plurality but recommend against runoff-based rules because they often prevent the emergence of a consensus candidate with broad support. The book instead recommends repeated balloting until some candidate manages to win
645-450: Is generally expensive, the exhaustive ballot is not used for large-scale, public elections. A more practical form of runoff voting is the two-round system , which excludes all but the top-two candidates after the first round, rather than gradually eliminating candidates over a series of rounds. Eliminations can occur with or without allowing and applying preference votes to choose the final two candidates. A second round of voting or counting
688-733: Is now Eurobodalla Shire was originally the home of the South Coast Bugelli-Manji and Yuin Aboriginal peoples . The council signed a Commitment to Indigenous Australians and a Local Agreement with the Aboriginal Community. The Eurobodalla Shire Council was formed in 1913 with the responsibility for administering local government functions along 110 kilometres (68 mi) of the NSW coast between Durras and Wallaga Lake. The council administers only about 30% of
731-559: Is only necessary if no candidate receives an overall majority of votes. This method is used in Mali, France and the Finnish and Slovenian presidential election. The contingent vote , also known as "top-two IRV", is the same as IRV, except that if no candidate achieves a majority in the first round of counting, all but the two candidates with the most votes are eliminated, and the second preferences for those ballots are counted. As in IRV, there
774-612: Is serviced by two highways – the Princes Highway between Sydney and Melbourne (part of Highway One around Australia), and the Kings Highway (National Route 52) linking Batemans Bay to Canberra. Moruya Airport , just east of the township of Moruya, is serviced by regular scheduled commuter flights to Sydney and Melbourne. There are no railways or major seaports in Eurobodalla Shire. In the 2021 census ,
817-423: Is then as follows: It is possible for a candidate to win an instant-runoff race without any support from more than half of voters, even when there is an alternative majority-approved candidate; this occurs when some voters truncate their ballots to show they do not support any candidates in the final round. In practice, candidates who do not receive a majority of votes in the first round usually do not finish with
860-687: Is thus closely related to rules like the exhaustive ballot and two-round runoff system . IRV has found some use in national elections in several countries , predominantly in the Anglosphere . It is used to elect members of the Australian House of Representatives and the National Parliament of Papua New Guinea as well as the President of India , the President of Ireland , and the President of Sri Lanka . The rule
903-477: The 1972 election had the largest number of winners who would not have won under first past the post but still only 14 out of 125 seats filled were not won by the first-count leader. The effect of IRV on voter turnout is difficult to assess. In a 2021 report, researchers at New America , a think tank based in Washington, D. C., said it may increase turnout by attracting more and more diverse candidates, but
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#1732801839344946-400: The 2022 Alaska's at-large congressional district special election . If Republican Sarah Palin , who lost in the final instant runoff, had not run, the more centrist Republican candidate, Nick Begich, would have defeated the winning Democratic candidate, Mary Peltola . The system has had a mixed reception among political scientists and social choice theorists . Some have suggested that
989-457: The left and right prefer the centrist candidate to stop the opposing candidate from winning, those voters who care more about defeating the opposition than electing their own candidate may cast a tactical first-preference vote for the centrist candidate. Proponents of IRV claim that IRV eliminates the spoiler effect, since IRV makes it safe to vote honestly for marginal parties. Under a plurality method, voters who sympathize most strongly with
1032-572: The single transferable vote (STV) method is applied to a single-winner election, it becomes IRV; the government of Ireland has called IRV "proportional representation" based on the fact that the same ballot form is used to elect its president by IRV and parliamentary seats by proportional representation (STV), but IRV is a non-proportional winner-take-all (single-winner) election method, while STV elects multiple winners. State law in South Carolina and Arkansas use "instant runoff" to describe
1075-480: The "alternative vote" (AV). Australians, who use IRV for most single winner elections, call IRV "preferential voting". While this term is widely used by Australians, it is somewhat of a misnomer . Depending on how "preferential" is defined, the term would include all voting systems, apply to any system that uses ranked ballots (thus both IRV and STV), or would exclude IRV (IRV fails positive responsiveness because ballot markings are not interpreted as "preferences" in
1118-441: The 2018 primary elections, that IRV would result in "one person, five votes", as opposed to " one person, one vote ". Federal judge Lance Walker rejected these claims, and the 1st circuit court denied Poliquin's emergency appeal. Often instant-runoff voting elections are won by the candidate who leads in first-count vote tallies so they choose the same winner as first-past-the-post voting would have. In Australia federal elections,
1161-490: The Condorcet winner to the IRV winner have an incentive to use the compromising strategy. IRV is also sometimes vulnerable to a paradoxical strategy of ranking a candidate higher to make them lose, due to IRV failing the monotonicity criterion . Research suggests that IRV is very resistant to tactical voting. In a test of multiple methods, instant runoff was found to be the second-most-resistant to tactical voting, after
1204-516: The Local Government Area of Eurobodalla recorded a population of 40,593 people. The area of 3,428 square kilometre gives a population density 11.8 people per square kilometre. Eurobodalla Shire Council is composed of nine councillors , including the mayor , for a fixed four-year term of office. The mayor is directly elected while the eight other councillors are elected proportionally as one entire ward . The most recent election
1247-410: The area of the Shire as the remaining 70% is non-rateable crown land held as national park and state forest: 40% of the shire is national park, 30% is state forest, 20% is productive farmland and 10% is urban settlement. The Shire is unusual in that nearly half of ratepayers are non-residents. Just over 17% of ratepayers are residents of Canberra . Although the permanent population is around 34,100,
1290-428: The first place. Spatial model simulations indicate that instant runoff rewards strategic withdrawal by candidates. Gibbard's theorem demonstrates that no (deterministic, non-dictatorial) voting method can be entirely immune from tactical voting. This implies that IRV is susceptible to tactical voting in some circumstances. In particular, when there exists a Condorcet winner who IRV fails to elect, voters who prefer
1333-566: The form of the single transferable vote . Henry Richmond Droop then proposed applying the system to single-winner contests. (He also invented the Droop quota , which equates to a simple majority in a single-winner contest.) Nonpartisan primary system with IRV in the second round (among top four candidates) in Alaska. In the United States, the sequential elimination method used by IRV
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1376-656: The impact would be realized most significantly by getting rid of the need for primaries. The overall impact on diversity of candidates is difficult to detect. Instant-runoff voting derives its name from the way the ballot count simulates a series of runoffs, similar to an exhaustive ballot system , except that voters do not need to turn out several times to vote. It is also known as the alternative vote, transferable vote, ranked-choice voting (RCV), single-seat ranked-choice voting, or preferential voting (but use of some of those terms may lead to misunderstanding as they also apply to STV.) Britons and New Zealanders generally call IRV
1419-477: The likely event that the fringe candidate is eliminated, the vote is not wasted but is transferred to the second preference. However, when the third-party candidate is more competitive, they can still act as a spoiler under IRV, by taking away first-choice votes from the more mainstream candidate until that candidate is eliminated, and then that candidate's second-choice votes helping a more-disliked candidate to win. In these scenarios, it would have been better for
1462-476: The practice of having certain categories of absentee voters cast ranked-choice ballots before the first round of an election and counting those ballots in any subsequent runoff elections. This method was first discussed by the Marquis de Condorcet in 1788, who quickly rejected it after showing it would often eliminate a candidate preferred by a majority of voters. IRV was later independently reinvented by Thomas Hare (of England) and Carl Andrae (of Denmark) in
1505-542: The same) between parties are common. Parties and candidates often encourage their supporters to participate in these preference deals using How-to-vote cards explaining how to use their lower rankings to maximize the chances of their ballot helping to elect someone in the preference deal before it may exhaust. Instant runoff may be manipulable via strategic candidate entry and exit, reducing similar candidates' chances of winning. Such manipulation does not need to be intentional, instead acting to deter candidates from running in
1548-458: The system contributes to higher rates of spoiled votes , partly because the ballot marking is more complex. Most jurisdictions with IRV do not require complete rankings and may use columns to indicate preference instead of numbers. In American elections with IRV, more than 99 percent of voters typically cast a valid ballot. A 2015 study of four local US elections that used IRV found that inactive ballots occurred often enough in each of them that
1591-420: The system does not do much to decrease the impact of wasted votes relative to plurality. Research has found IRV causes lower confidence in elections and does not substantially affect minority representation, voter turnout , or long-run electoral competition . Opponents have also noted a high rate of repeals for the system. Governor Paul LePage and Representative Bruce Poliquin claimed, ahead of
1634-412: The third party voters if their candidate had not run at all (spoiler effect), or if they had voted dishonestly, ranking their favourite second rather than first (favorite betrayal). This is the same bracketing effect exploited by Robinette and Tideman in their research on strategic campaigning, where a candidate alters their campaign to cause a change in voter honest choice, resulting in the elimination of
1677-492: The traditional sense. Under IRV (and STV), secondary preferences are used as back-up preferences/contingency votes). Jurisdictions in the United States such as San Francisco , Minneapolis , Maine , and Alaska have tended to use the term "ranked-choice voting" in their laws that apply to IRV contests. The San Francisco Department of Elections claimed the word "instant" in the term "instant-runoff voting" could confuse voters into expecting results to be immediately available. As
1720-408: The visiting population (who stay more than 3 nights) is 3.1 million per year. The Eurobodalla Shire has a number of heritage-listed sites, including: The main growth industries in the area are construction, government services, real estate, retail, retirement, aged care, tourism, while dairy farming, forestry, sawmilling and commercial fishing are traditional industries in decline. Eurobodalla Shire
1763-435: The winner of each election did not receive a majority of votes cast in the first round. The rate of inactive ballots in each election ranged from a low of 9.6 percent to a high of 27.1 percent. Instant-runoff voting has notably high resistance to tactical voting but less to strategic nomination . In Australia, preference deals (where one party's voters agree to place another party's voters second, in return for their doing
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1806-458: Was first developed and studied by the Marquis de Condorcet , who came to reject it after discovering it could eliminate the majority-preferred candidate in a race (today often called a Condorcet winner ). IRV is known to exhibit other mathematical pathologies , which include non-monotonicity and the no-show paradox . Like some other commonly-used systems, IRV also exhibits a kind of independence of irrelevant alternative violation called
1849-764: Was held on 25 October 2021, and the makeup of the council, including the mayor, is as follows: The current Council, elected in 2021, in order of election, is: 35°55′S 150°06′E / 35.917°S 150.100°E / -35.917; 150.100 Instant-runoff voting Condorcet methods Positional voting Cardinal voting Quota-remainder methods Approval-based committees Fractional social choice Semi-proportional representation By ballot type Pathological response Strategic voting Paradoxes of majority rule Positive results Instant-runoff voting ( IRV ) ( US : ranked-choice voting or RCV , AU : preferential voting , UK : alternative vote )
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