Proportional representation (PR) refers to any type of electoral system under which subgroups of an electorate are reflected proportionately in the elected body. The concept applies mainly to political divisions among voters. The essence of such systems is that all votes cast – or almost all votes cast – contribute to the result and are effectively used to help elect someone – not just a bare plurality or (exclusively) the majority – and that the system produces mixed, balanced representation reflecting how votes are cast.
The additional-member system (AMS) is a mixed electoral system under which most representatives are elected in single-member districts (SMDs), and the other "additional members" are elected to make the seat distribution in the chamber more proportional to the way votes are cast for party lists. It is distinct from parallel voting in that the "additional member" seats are awarded to parties taking into account seats won in SMDs, which is not done under parallel voting.
Mixed-member proportional representation is a mixed electoral system which combines local majoritarian elections with a compensatory tier of party list votes, which are used to allocate additional members in a way that aims to produce proportional representation overall. In most MMP systems, voters get two votes: one to decide the representative for their single-seat constituency, and one for a political party. Some countries use single vote variants of MMP, although this article focuses primarily on dual vote versions of MMP.
Norway elects its legislature on a national level. The parliament, the Storting, has 169 members elected for a four-year term by a form of proportional representation in multi-seat constituencies.
An electoral district, also known as an election district, legislative district, voting district, constituency, riding, ward, division, electorate, or (election) precinct, is a subdivision of a larger state created to provide its population with representation in the larger state's constituency. That body, or the state's constitution or a body established for that purpose, determines each district's boundaries and whether each will be represented by a single member or multiple members. Generally, only voters (constituents) who reside within the district are permitted to vote in an election held there. District representatives may be elected by a first-past-the-post system, a proportional representative system, or another voting method. They may be selected by a direct election under universal suffrage, an indirect election, or another form of suffrage.
Elections in the Netherlands are held for five territorial levels of government: the European Union, the state, the twelve Provinces, the 21 water boards and the 342 municipalities. Apart from elections, referendums were also held occasionally, but have been removed from the law in 2018. The most recent national election results and an overview of the resulting seat assignments and coalitions since World War II are shown at the bottom of this page.
Elections in Spain encompass four different types: general elections, regional elections, local elections, and elections to the European Parliament. General elections and regional elections are typically conducted at the conclusion of the national or regional legislative mandate, which usually spans four years since the previous election. However, early elections can be called in certain circumstances. On the other hand, local council elections and elections to the European Parliament follow fixed dates, although some local government bodies, such as provincial councils, are not directly elected. In most elections, a party-list proportional representation (PR) system is employed, while the Senate utilizes the plurality system.
Elections in Belgium are organised for legislative bodies only, and not for executive functions. Direct elections take place for the European Parliament, the Chamber of Representatives, the Parliaments of the Regions, the Parliaments of the Communities, the provincial councils, the municipal councils and the councils of Districts of Antwerp. Voting is mandatory and all elections use proportional representation which in general requires coalition governments.
Elections in the Philippines are of several types. The president, vice-president, and the senators are elected for a six-year term, while the members of the House of Representatives, governors, vice-governors, members of the Sangguniang Panlalawigan, mayors, vice-mayors, members of the Sangguniang Panlungsod/members of the Sangguniang Bayan, barangay officials, and the members of the Sangguniang Kabataan are elected to serve for a three-year term.
Elections in Hungary are held at two levels: general elections to elect the members of the National Assembly and local elections to elect local authorities. European Parliament elections are also held every 5 years.
The 1968 Italian general election was held in Italy on 19 May 1968. The Christian Democracy (DC) remained stable around 38% of the votes. They were marked by a victory of the Communist Party (PCI) passing from 25% of 1963 to c. 30% at the Senate, where it presented jointly with the new Italian Socialist Party of Proletarian Unity (PSIUP), which included members of Socialist Party (PSI) which disagreed the latter's alliance with DC. PSIUP gained c. 4.5% at the Chamber. The Socialist Party and the Democratic Socialist Party (PSDI) presented together as the Unified PSI–PSDI, but gained c. 15%, far less than the sum of what the two parties had obtained separately in 1963.
The 1987 Italian general election was held in Italy on 14–15 June 1987. This election was the first Italian election in which the distance between the Christian Democrats and the Communists grew significantly instead of decreasing. Two parties that had not previously been in parliament won representation: the Greens with thirteen seats, and the Northern League with two.
Electoral districts go by different names depending on the country and the office being elected.
The 2000 Lombard regional election took place on 16 April 2000. The 7th term of the Regional Council was chosen.
The 1995 Lombard regional election took place on 23 April 1995. The 6th term of the Regional Council was chosen.
A localized list or local list is a technique used under systems of party-list proportional representation to determine which party candidates are elected from the party list. Local lists differ from open lists or closed lists. As with open lists, local lists allow the electorate to vote for individual candidates, but that preference is expressed through local or district level election processes. Closed lists do not allow voters to express such a preference. Voters vote only for the party.
Scorporo is a partially compensatory, mixed-member majoritarian electoral system, sometimes referred to as a negative vote transfer system (NVT) whereby a portion of members are elected in single-member districts (SMDs) and a portion are elected from a list. It may be fully defined as a parallel voting system which excludes a portion of the SMD winners' votes in electing the proportional tier, to result in a more proportional outcome. The exclusion of a portion of the SMD winners' votes is what makes scorporo fundamentally different from parallel voting and somewhat closer to mixed-member proportional representation, and thereby between the two in terms of proportionality. The system is only known to have been used in Italy and for a portion of the compensatory tier of the National Assembly of Hungary.
The Italian electoral law of 2017, colloquially known by the nickname Rosatellum bis or simply Rosatellum after Ettore Rosato, the Democratic Party (PD) leader in the Chamber of Deputies who first proposed the new law, is a parallel voting system, which acts as a mixed electoral system, with 37% of seats allocated using a first-past-the-post electoral system and 63% using a proportional method, with one round of voting. The Chamber and Senate of the Republic did not differ in the way they allocated the proportional seats, both using the largest remainder method of allocating seats.
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