Multi-party system

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In political science, a multi-party system is a political system in which multiple political parties across the political spectrum run for national elections, and all have the capacity to gain control of government offices, separately or in coalition. [1] Apart from one-party-dominant and two-party systems, multi-party systems tend to be more common in parliamentary systems than presidential systems and far more common in countries that use proportional representation compared to countries that use first-past-the-post elections. Several parties compete for power and all of them have a reasonable chance of forming government.

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In multi-party systems that use proportional representation, each party wins a number of legislative seats proportional to the number of votes it receives.

Under first-past-the-post, the electorate is divided into a number of districts, each of which selects one person to fill one seat by a plurality of the vote. First-past-the-post is not conducive to a proliferation of parties, and naturally gravitates toward a two-party system, in which only two parties have a real chance of electing their candidates to office. This gravitation is known as Duverger's law.

Proportional representation, on the other hand, does not have this tendency, and allows multiple major parties to arise. Proportional systems either has multi-member districts with more than one representative elected from a given district to the same legislative body or some other type of pooling of the votes, and thus there are a greater number of viable parties. Duverger's law states that the number of viable political parties is one, plus the number of seats in a district.

Argentina, Armenia, Belgium, Brazil, Canada, Denmark, Finland, France, Germany, Iceland, India, Indonesia, Ireland, the Netherlands, New Zealand, Norway, the Philippines, Poland, Sweden, Tunisia, Turkey and Ukraine are examples of nations that have used a multi-party system effectively in their democracies. In these countries, usually no single party has a parliamentary majority by itself (hung parliaments). Instead, multiple political parties are compelled to form compromised coalitions for the purpose of developing power blocks, usually majority control of the assembly, and attaining legitimate mandate.

Comparisons with other party systems

Unlike a one-party system (or a dominant-party system), a multi-party system encourages the general constituency to form multiple distinct, officially recognized groups, generally called political parties. Each party competes for votes from the enfranchised constituents (those allowed to vote). A multi-party system prevents the leadership of a single party from controlling a single legislative chamber without challenge.

A system where only two parties have a realistic possibility of winning an election is called a two-party system. A system where only three parties have a realistic possibility of winning an election or forming a coalition is sometimes called a "third-party system". But, in some cases the system is called a "Stalled Third-Party System," when there are three parties and all three parties win a large number of votes, but only two have a chance of winning an election.[ original research? ] Usually, this is because the electoral system penalises the third party, e.g. as in Canadian or UK politics.

A two-party system requires voters to align themselves in large blocks, sometimes so large that they cannot agree on any overarching principles. Some theories argue that this allows centrists to gain control, though this is disputed. On the other hand, if there are multiple major parties, each with less than a majority of the vote, the parties are strongly motivated to work together to form working governments. This also promotes centrism, as well as promoting coalition-building skills while discouraging polarization. [2] [3]

See also

Related Research Articles

A coalition government, or coalition cabinet, is a government where political parties enter a power-sharing arrangement of the executive. Coalition governments usually occur when no single party has achieved an absolute majority after an election. A party not having majority is common under proportional representation, but not in nations with majoritarian electoral systems.

Plurality voting refers to electoral systems in which a candidate who polls more than any other is elected. In systems based on single-member districts, it elects just one member per district and may also be referred to as first-past-the-post (FPTP), single-member plurality (SMP/SMDP), or single-choice (choose-one) voting. A system that elects multiple winners elected at once with the plurality rule and where each voter casts multiple X votes in a multi-seat district is referred to as plurality block voting. A semi-proportional system that elects multiple winners elected at once with the plurality rule and where each voter casts just one vote in a multi-seat district is known as single non-transferable voting.

<span class="mw-page-title-main">Proportional representation</span> Voting system that makes outcomes proportional to vote totals

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.

<span class="mw-page-title-main">Single transferable vote</span> Proportional representation ranked voting system

The single transferable vote (STV), sometimes known as proportional ranked choice voting (P-RCV), is a multi-winner electoral system in which each voter casts a single vote in the form of a ranked-choice ballot. Voters have the option to rank candidates, and their vote may be transferred according to alternate preferences if their preferred candidate is eliminated or elected with surplus votes, so that their vote is used to elect someone they prefer over others in the running. STV aims to approach proportional representation based on votes cast in the district where it is used, so that each vote is worth about the same as another. Formally, STV satisfies a fairness criterion known as proportionality for solid coalitions.

Strategic voting, also called tactical voting, sophisticated voting or insincere voting, occurs in voting systems when a voter votes for a candidate or party other than their sincere preference to prevent an undesirable outcome. For example, in a simple plurality election, a voter might gain a better outcome by voting for a less preferred but more generally popular candidate.

A two-party system is a political party system in which two major political parties consistently dominate the political landscape. At any point in time, one of the two parties typically holds a majority in the legislature and is usually referred to as the majority or governing party while the other is the minority or opposition party. Around the world, the term has different meanings. For example, in the United States, the Bahamas, Jamaica, and Zimbabwe, the sense of two-party system describes an arrangement in which all or nearly all elected officials belong to either of the two major parties, and third parties rarely win any seats in the legislature. In such arrangements, two-party systems are thought to result from several factors, like "winner takes all" or "first past the post" election systems. The electoral competition is mostly limited to the two major parties.

In political science, Duverger's law holds that in political systems with only one winner, two main parties tend to emerge with minor parties typically splitting votes away from the most similar major party. In contrast, systems with proportional representation usually have more representation of minor parties in government.

Single non-transferable vote or SNTV is an electoral system used to elect multiple winners. It is a generalization of first-past-the-post, applied to multi-member districts with each voter casting just one vote. Unlike FPTP, which is a single-winner system, in SNTV multiple winners are elected, typically in electoral districts; additionally, unlike FPTP, SNTV produces mixed representation and makes it unlikely for a single party to take all the seats in a city or a set area, which can happen under FPTP.

<span class="mw-page-title-main">First-past-the-post voting</span> Voters vote for one candidate and the candidate with the most votes wins

First-past-the-post voting is an electoral system wherein voters cast a vote for a single candidate, and the candidate with the most votes wins the election. Analogous systems for multi-winner contests are known as plurality block voting or "block voting" systems; both FPTP and block voting are "plurality" systems in that the winner needs only a plurality of the votes and not an absolute majority. The term first-past-the-post is a metaphor from horse racing of the plurality-voted candidate winning such a race; the electoral system is formally called single-member plurality voting (SMP) when used in single-member districts, and informally called choose-one voting in contrast to ranked voting or score voting.

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 legislative body. 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.

At a national level, Greece holds elections for its legislature, the Hellenic Parliament.

Elections in Israel are based on nationwide proportional representation. The electoral threshold is currently set at 3.25%, with the number of seats a party receives in the Knesset being proportional to the number of votes it receives. The Knesset is elected for a four-year term, although most governments have not served a full term and early elections are a frequent occurrence. Israel has a multi-party system based on coalition governments as no party has ever won a majority of seats in a national election, although the Alignment briefly held a majority following its formation by an alliance of several different parties prior to the 1969 elections. Suffrage is universal to all Israeli citizens above the age of 18. Israeli citizens living abroad have to travel to Israel in order to vote. Voting booths are made available on Israeli ships. Elections are overseen by the Central Elections Committee, and are held according to the Knesset Elections Law. Israel was ranked 47th most electoral democratic country in the world and the most electoral democratic country in the Middle East according to V-Dem Democracy indices in 2023.

The Politics of British Columbia involve not only the governance of British Columbia, Canada, and the various political factions that have held or vied for legislative power, but also a number of experiments or attempts at political and electoral reform.

A single-member district is an electoral district represented by a single officeholder. It contrasts with a multi-member district, which is represented by multiple officeholders. Single-member districts are also sometimes called single-winner voting, winner-takes-all, single-member constituencies or single-member electorates.

Scotland uses different electoral systems for elections to Parliament, the Scottish Parliament and to local councils. A different system was also in use between 1999 and 2019 for United Kingdom elections to the European Parliament. Historically, only First Past the Post (FPTP) was used for all elections in Scotland, but this changed in 1999 both with the introduction of D'Hondt elections to the EU Parliament and the inception the same year of the devolved Scottish Parliament. Two of the devolved legislatures in the United Kingdom - the Scottish Parliament and the Senedd - use the Additional Members System (AMS). AMS has been used for every Scottish Parliament election since 1999, with the most recent being in 2021.

Plurality block voting, also known as plurality-at-large voting, bloc vote or block voting (BV) is a non-proportional voting system for electing representatives in multi-winner elections. Each voter may cast as many votes as the number of seats to be filled. 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 in a seemingly landslide victory.

Electoral reform is a change in electoral systems which alters how public desires are expressed in election results.

<span class="mw-page-title-main">Electoral system</span> Method by which voters make a choice between options

An electoral system or voting system is a set of rules that determine how elections and referendums are conducted and how their results are determined. Electoral systems are used in politics to elect governments, while non-political elections may take place in business, non-profit organisations and informal organisations. These rules govern all aspects of the voting process: when elections occur, who is allowed to vote, who can stand as a candidate, how ballots are marked and cast, how the ballots are counted, how votes translate into the election outcome, limits on campaign spending, and other factors that can affect the result. Political electoral systems are defined by constitutions and electoral laws, are typically conducted by election commissions, and can use multiple types of elections for different offices.

<span class="mw-page-title-main">Semi-parliamentary system</span> System where voters vote simultaneously for both prime minister and members of legislature

Semi-parliamentary system can refer to one of the following:

References

  1. Education 2020 definition of multiparty: "A system in which several major and many lesser parties exist, seriously compete for, and actually win public offices."
  2. The social science literature has contributed enormously in recent years on the effects on forms of government and quality of life of the citizens. Lowell's axiom is one of the most tested theory empirically tested (Lowell, A.L., 1896). Governments and Parties in Continental Europe. Bostin, MA: Houghton Mifflin)..
  3. Basu, K., Dey Biswas, S., Harish, P., Dhar, S., & Lahiri, M. (2016). Is multi-party coalition government better for the protection of socially backward classes in India? UN-WIDER Working Paper, 2016 (109).