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a poster for the European Parliament election 2004 in Italy, showing party lists
a poster for the European Parliament election 2004 in Italy, showing party lists
Electoral methods
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Politics and the Election series. A voting system allows voters to choose between options often in an Election where candidates are selected for public office. Politics Politics is the process by which groups of people make decisions An election is a Decision-making process by which a population chooses an individual to hold formal office
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Party-list proportional representation systems are a family of voting systems used in multiple-winner elections (e. The plurality voting system is a Single-winner voting system often used to elect executive officers or to elect members of a legislative assembly which is based on single-member The two-round system (also known as the second ballot or runoff voting) is a Voting system used to elect a single winner The exhaustive ballot is a Voting system used to elect a single winner This article is about voting systems that use ranked ballots For alternative meanings see Preferential voting (disambiguation. The Condorcet candidate or Condorcet winner of an Election is the candidate who when compared with every other candidate is preferred by more voters A Condorcet method is any single-winner election method that meets the Condorcet criterion, that is which always selects the Condorcet winner, the candidate Copeland's method is a Condorcet method in which the winner is determined by finding the candidate with the most pairwise victories The Kemeny-Young method is a Voting system that uses Preferential ballots Pairwise comparison counts and sequence scores to identify the Minimax is often considered to be the simplest of the Condorcet methods It is also known as the Simpson-Kramer method, and the successive reversal method The Borda count can be combined with an Instant Runoff procedure to create hybrid election methods that are called Nanson method and Baldwin method. Ranked Pairs (RP or Tideman (named after its developer Nicolaus Tideman) is a Voting method that selects a single winner using votes that express The Schulze method is a Voting system developed in 1997 by Markus Schulze that selects a single winner using votes that express preferences. Bucklin voting is the name of a Voting system that can be used for single-member and multi-member districts. The Coombs' method, also called the Coombs rule is a Voting system created by Clyde Coombs used for single-winner Elections in which Instant-runoff voting ( IRV) is a Voting system used for single-winner elections in which voters have one vote and rank Candidates in order of The Borda count is a single-winner election method in which voters rank candidates in order of preference Approval voting is a single-winner voting system used for Elections Each voter may vote for (approve of as many of the candidates as they wish Range voting (also called ratings summation, average voting, cardinal ratings, score voting, 0–99 voting, or the score A voting system allows voters to choose between options often in an Election where candidates are selected for public office. Proportional representation (sometimes referred to as full representation or PR is a category of electoral formula aiming at a close match between the percentage of votes Cumulative voting (also accumulation voting or weighted voting) is a multiple-winner Voting system intended to promote Proportional representation Mixed member proportional representation, also termed mixed-member proportional voting and commonly abbreviated to MMP, is an ' additional member ' Open list describes any variant of Party-list proportional representation where voters have at least some influence on the order in which a party's candidates are elected Closed list describes the variant of Party-list proportional representation where voters can (effectively only vote for political parties as a whole and thus The D'Hondt method (mathematically but not operationally equivalent to Jefferson's method, and Bader-Ofer method) is a Highest averages method for The highest averages method is one way of allocating seats proportionally for representative assemblies with party list Voting systems. The largest remainder method is one way of allocating seats proportionally for representative assemblies with party list Voting systems. The Sainte-Laguë method of the highest average (equivalent to Webster's method or divisor method with standard rounding is one way of allocating seats proportionally for Single transferable vote (STV is a preferential Voting system designed to minimize Wasted votes and provide Proportional representation The Quota Borda System or Quota Preference Score is a Voting system that was devised by the British philosopher Michael Dummett and first published in 1984 in his The matrix vote can be used when one group of people wishes to elect a smaller number of persons each of whom is to have a different assignment The Additional Member System (AMS is a branch of Voting systems in which some representatives are elected from geographic constituencies and others are elected under Parallel voting describes a mixed Voting system where voters in effect participate in two separate elections using different systems and where the results in one election have Cumulative voting (also accumulation voting or weighted voting) is a multiple-winner Voting system intended to promote Proportional representation The single non-transferable vote or SNTV is an Electoral system used in multi-member constituency elections Limited voting is a Voting system in which electors have fewer votes than there are positions available Sortition, also known as allotment, is an equal-chance method of selection by some form of lottery such as drawing coloured pebbles from a bag A voting system allows voters to choose between options often in an Election where candidates are selected for public office. An election is a Decision-making process by which a population chooses an individual to hold formal office g. elections to parliament), emphasizing proportional representation (PR). TalkParliament#Screen-size. -->A  parliament is a Legislature, especially in those Proportional representation (sometimes referred to as full representation or PR is a category of electoral formula aiming at a close match between the percentage of votes They can also be used as part of mixed additional member systems. The Additional Member System (AMS is a branch of Voting systems in which some representatives are elected from geographic constituencies and others are elected under

In these systems, parties make lists of candidates to be elected, and seats get allocated to each party in proportion to the number of votes the party receives. Voters may vote directly for the party, as in Israel, or they may vote for candidates and that vote will pool to the party, as in Turkey and Finland. For a topic outline on this subject see List of basic Israel topics. Turkey (Türkiye known officially as the Republic of Turkey ( is a Eurasian Country that stretches Finland, officially the Republic of Finland ( is a Nordic country situated in the Fennoscandian region of northern Europe.

There are two major and important variations of Party List systems, usually defined as closed list and open list elections: i. Closed list describes the variant of Party-list proportional representation where voters can (effectively only vote for political parties as a whole and thus Open list describes any variant of Party-list proportional representation where voters have at least some influence on the order in which a party's candidates are elected e. the order in which the party's list candidates get elected may be pre-determined by some method internal to the party (a closed list system) or they may be determined by the voters at large (an open list system). Closed list describes the variant of Party-list proportional representation where voters can (effectively only vote for political parties as a whole and thus Open list describes any variant of Party-list proportional representation where voters have at least some influence on the order in which a party's candidates are elected

There are many variations on seat allocation within party-list proportional representation. The three most common are:

List PR may also be combined in various hybrids (e. g. using the Additional member system). The Additional Member System (AMS is a branch of Voting systems in which some representatives are elected from geographic constituencies and others are elected under

The unmodified Sainte-Laguë method and the LR-Hare method rank as the most proportional followed by LR-Droop; single transferable vote; modified Sainte-Laguë, D'Hondt and largest remainder Imperiali. Single transferable vote (STV is a preferential Voting system designed to minimize Wasted votes and provide Proportional representation The Imperiali quota is a formula used to calculate the minimum number or quota, of votes required to capture a seat in some forms of single transferable vote or While the allocation formula is important, equally important is the district magnitude (number of seats in a constituency). The higher the district magnitude, the more proportional an electoral system becomes.

See also

External links

Democracy Democracy History of democracy Varieties Types of democracy A list MP is a Member of Parliament (MP who is elected from a Party list rather than from a geographical constituency |||}The ley de lemas is the Spanish name of the double simultaneous voting (DSV system which is or has been used in elections in Argentina, Uruguay and
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