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Justified representation (JR) is a criterion of fairness in multiwinner approval voting. It can be seen as an adaptation of the proportional representation criterion to approval voting. Background Proportional representation (PR) is an important consideration in designing electoral systems. It means that the various groups and sectors in the population should be represented in the parliament in proportion to their size. The most common system for ensuring proportional representation is the party-list system. In this system, the candidates are partitioned into parties, and each citizen votes for a single party. Each party receives a number of seats proportional to the number of citizens who voted for it. For example, for a parliament with 10 seats, if exactly 50% of the citizens vote for party A, exactly 30% vote for party B, and exactly 20% vote for party C, then proportional representation requires that the parliament contains exactly 5 candidates from party A, exactly 3 can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiwinner Approval Voting
Multiwinner approval voting, sometimes also called approval-based committee (ABC) voting, refers to a family of multi-winner Electoral system, electoral systems that use Approval ballot, approval ballots. Each voter may select ("approve") any number of candidates, and multiple candidates are elected. Multiwinner approval voting is an adaptation of approval voting to Multiwinner voting, multiwinner elections. In a single-winner approval voting system, it is easy to determine the winner: it is the candidate approved by the largest number of voters. In multiwinner approval voting, there are many different ways to decide which candidates will be elected. Approval block voting In approval block voting (also called unlimited voting), each voter either approves or disapproves of each candidate, and the ''k'' candidates with the most approval votes win (where ''k'' is the predetermined committee size). It does not provide proportional representation. Proportional approval voting P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |