
In
political science
Political science is the scientific study of politics. It is a social science dealing with systems of governance and power, and the analysis of political activities, political thought, political behavior, and associated constitutions and ...
, coexistence
involves different voters using different
electoral system
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 m ...
s depending on which
electoral district they belong to. This is distinct from other
mixed electoral systems that use
parallel voting
Parallel voting is a type of mixed electoral system in which representatives are voted into a single chamber using two or more different systems, most often first-past-the-post voting (FPTP) with party-list proportional representation (PR). It ...
(superposition) or
compensatory voting. For example, the
rural-urban proportional (RUP) proposal for
British Columbia
British Columbia (commonly abbreviated as BC) is the westernmost Provinces and territories of Canada, province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include ...
involved the use of a fully proportional system of
list-PR or
STV
STV may refer to:
Television
* Satellite television
** Direct-broadcast satellite television (DBSTV)
Channels and stations
* STV (TV channel), the brand name of ITV broadcasters in central and northern Scotland
** Scottish Television, now le ...
in urban regions, combined with MMP in rural regions.
Coexistence of electoral systems exist in multiple countries, like the
Democratic Republic of the Congo
The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...
and
Panama
Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Co ...
, as well as for elections of the
European Parliament
The European Parliament (EP) is one of the legislative bodies of the European Union and one of its seven institutions. Together with the Council of the European Union (known as the Council and informally as the Council of Ministers), it adop ...
.. Historically, variants have been used in Iceland (1946–1959), Niger (1993, 1995) and Madagascar (1998).
Types of coexistence
References
{{polisci-stub
Electoral systems
Mixed electoral systems