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. Under other election systems, a bare plurality or a scant majority are all that are used to elect candidates. PR systems provide balanced representation to different factions, reflecting how votes are cast.
The additional-member system (AMS) is a two-vote seat-linkage-based mixed electoral system used in the United Kingdom in which most representatives are elected in single-member districts (SMDs), and a fixed number of other "additional members" are elected from a closed list to make the seat distribution in the chamber more proportional to the votes cast for party lists. It is distinct from using parallel voting for the list seats in that the "additional member" seats are awarded to parties taking into account seats won in SMDs – these are ignored under parallel voting.
Mixed-member proportional representation is a type of representation provided by some mixed electoral systems which combine local winner-take-all elections with a compensatory tier with party lists, in a way that produces proportional representation overall. Like proportional representation, MMP is not a single system, but a principle and goal of several similar systems. Some systems designed to achieve proportionality are still called mixed-member proportional, even if they generally fall short of full proportionality. In this case, they provide semi-proportional representation.
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 electoraldistrict, sometimes called a constituency, riding, or ward, is a subdivision of a larger state created to provide its population with representation in the larger state's legislature. 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 were removed from the law in 2018.
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 in federal elections, 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.
Plurality block voting is a type of block voting method for multi-winner elections. Each voter may cast as many votes as the number of seats to be filled. The candidates with the most votes are elected. The usual result when the candidates divide into parties is that the most-popular party in the district sees its full slate of candidates elected, even if the party does not have support of majority of the voters.
Electoral districts go by different names depending on the country and the office being elected.
The 2005 Lombard regional election took place on 3–4 April 2005. The 8th term of the Regional Council was chosen. Roberto Formigoni was re-elected for the third time in a row President, defeating Riccardo Sarfatti.
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.
The Italian electoral law of 2017, colloquially known by the nickname 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.