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Schulze STV is a draft single transferable vote (STV) ranked voting system designed to achieve proportional representation.[1][2] It was invented by Markus Schulze, who developed the Schulze method for resolving ties using a Condorcet method. Schulze STV is similar to CPO-STV in that it compares possible winning candidate pairs and selects the Condorcet winner. It is not used in parliamentary elections.
The system is based on Schulze's investigations into vote management and free riding.[3] When a voter prefers a popular candidate, there is an advantage to first choosing a candidate who is unlikely to win (Woodall free riding) or omitting his preferred candidate from his rankings (Hylland free riding).
Schulze STV is designed to be as resistant to free riding as possible, without giving up the Droop proportionality criterion.[1]
^ abMarkus Schulze (2011-03-11). "Free Riding and Vote Management under Proportional Representation by Single Transferable Vote" (PDF).
^Markus Schulze (2017-03-10). "Implementing the Schulze STV Method".
SchulzeSTV is a draft single transferable vote (STV) ranked voting system designed to achieve proportional representation. It was invented by Markus Schulze...
proportional representation, a single transferable vote (STV) variant known as SchulzeSTV also exists. The Schulze method is used by several organizations including...
preference list." While STV generally does not satisfy the Condorcet criterion, Condorcet method variants like SchulzeSTV and CPO-STV do. Critics[who?] contend...
who has been declared elected. In proportional quota-based systems such as STV or expanding approvals, these excess votes can be transferred to other candidates...
and Related Methods: The ranked pairs method – including the Schulze method, SchulzeSTV, and split cycle method – are Condorcet-consistent methods of...
pairs, Schulze), the Coombs' method and positional voting. There are also several variants of single transferable vote, including CPO-STV, SchulzeSTV and...
quota was used in the original proposal for a single transferable vote (STV-Hare) system, but has since been almost entirely supplanted for this use...
Kemeny–Young method Ranked pairs Schulze method Proportional forms which satisfy this property include: CPO-STVSchulzeSTV Though there will not always be...
Proportional forms of ranked voting Single transferable vote Gregory Wright SchulzeSTV CPO-STV Ranked party list PR Spare vote Proportional forms of cardinal voting...
Schulze method, a single-winner election method SchulzeSTV, a method of proportional representation by the single transferable vote Müller-Schulze Gambit...
use STV in their elections. STV was used to elect British university MPs prior to 1958. STV was used in Canada to elect provincial legislators. STV was...
(3): 185–206. doi:10.1007/BF00433944. ISSN 1432-217X. S2CID 122758840. Schulze, Markus (October 2003). "A New Monotonic and Clone-Independent Single-Winner...
Proportional forms of ranked voting Single transferable vote Gregory Wright SchulzeSTV CPO-STV Ranked party list PR Spare vote Proportional forms of cardinal voting...
transferable vote (STV) elections, but have since been abolished in all states and territories aside from Victoria. When multiple Irish STV elections are simultaneous...
transferable vote (STV) method describe STV as a form of cumulative voting with fractional votes[citation needed]. The difference is that the STV method itself...
known as instant run-off voting (IRV) - and the single transferable vote (STV), approval voting, the Borda Count (BC), the Modified Borda Count (MBC),...
although at the time the Liberal Democrats remained largely committed to STV, but preferred AV+ to first-past-the-post. The report was heavily criticised...
Proportional forms of ranked voting Single transferable vote Gregory Wright SchulzeSTV CPO-STV Ranked party list PR Spare vote Proportional forms of cardinal voting...
Proportional forms of ranked voting Single transferable vote Gregory Wright SchulzeSTV CPO-STV Ranked party list PR Spare vote Proportional forms of cardinal voting...
proportional representation. It was used by Thomas Hare in his first proposals for STV. It is given by the expression: total votes total seats {\displaystyle {\frac...
count. Chris Geller's STV-B uses vote count quotas to elect, but eliminates the candidate with the lowest Borda score; Geller-STV does not recalculate...
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