Parallel voting
   HOME

TheInfoList



OR:

In
political science Political science is the scientific study of politics. It is a social science dealing with systems of governance and Power (social and political), power, and the analysis of political activities, political philosophy, political thought, polit ...
, parallel voting or superposition refers to the use of two or more
electoral systems An electoral or voting system is a set of rules used to determine the results of an election. Electoral systems are used in politics to elect governments, while non-political elections may take place in business, nonprofit organizations and inf ...
to elect different members of a legislature. More precisely, an electoral system is a superposition if it is a mixture of at least two tiers, which do not interact with each other in any way; one part of a legislature is elected using one method, while another part is elected using a different method, with all voters participating in both. Thus, the final results can be found by calculating the results for each system separately based on the votes alone, then adding them together. A system is called fusion (not to be confused with
electoral fusion Electoral fusion in the United States is an arrangement where two or more United States political parties on a ballot list the same candidate, allowing that candidate to receive votes on multiple party lines in the same election. Electoral fus ...
) or majority bonus, another independent mixture of two system but without two tiers. Superposition (parallel voting) is also not the same as " coexistence", which when different districts in the same election use different systems. Superposition, fusion and coexistence are distinct from dependent mixed electoral systems like compensatory (corrective) and conditional systems. Most often, parallel voting involves combining a
winner-take-all system A winner-take-all (or winner-takes-all) electoral system is one where a voting bloc can win all seats in a legislature or electoral district, denying representation to any political minorities. Such systems are used in many major democracies. Suc ...
with
party-list proportional representation Party-list proportional representation (list-PR) is a system of proportional representation based on preregistered Political party, political parties, with each party being Apportionment (politics), allocated a certain number of seats Apportionm ...
(PR). While
first-preference plurality First-past-the-post (FPTP)—also called choose-one, first-preference plurality (FPP), or simply plurality—is a single-winner voting rule. Voters mark one candidate as their favorite, or first-preference, and the candidate with more first- ...
with PR is the most common pairing in parallel voting, many other combinations are possible. The proportion of list seats compared to total seats ranges widely; for example 30% in Taiwan, 37.5% in Japan and 68.7% in
Armenia Armenia, officially the Republic of Armenia, is a landlocked country in the Armenian Highlands of West Asia. It is a part of the Caucasus region and is bordered by Turkey to the west, Georgia (country), Georgia to the north and Azerbaijan to ...
. Parallel voting is used in both national parliaments and local governments in
Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
,
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...
,
Lithuania Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...
,
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
,
Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
, and other countries, making it among the world's most popular electoral systems.


Definition

In parallel voting, voters cast two (or more) votes, one for each method the system contains. However, these votes do not interact in any way: the vote in one method has no effect on the calculation of seats in the other methods.


Confusion and conflation

Under the most common form of parallel voting, a portion of seats in the
legislature A legislature (, ) is a deliberative assembly with the legal authority to make laws for a political entity such as a country, nation or city on behalf of the people therein. They are often contrasted with the executive and judicial power ...
are filled by the single-member
first-preference plurality First-past-the-post (FPTP)—also called choose-one, first-preference plurality (FPP), or simply plurality—is a single-winner voting rule. Voters mark one candidate as their favorite, or first-preference, and the candidate with more first- ...
method (FPP), while others are filled by
proportional representation Proportional representation (PR) refers to any electoral system under which subgroups of an electorate are reflected proportionately in the elected body. The concept applies mainly to political divisions (Political party, political parties) amon ...
.Royal Commission on Electoral Systems (1986), ''Report of the Royal Commission on the Electoral System: towards a better democracy'', Wellington N.Z.: Government Printing, pg. 33. This sometimes leads to a
hypercorrection In sociolinguistics, hypercorrection is the nonstandard use of language that results from the overapplication of a perceived rule of language-usage prescription. A speaker or writer who produces a hypercorrection generally believes through a ...
that attempts to limit the term parallel voting to refer only to mixtures of first-past-the-post and proportional representation. Parallel voting can use other systems besides FPP, and can have any mixture of winner-take-all, semi-proportional, and proportional components. Although the two are often mistakenly conflated,
mixed-member majoritarian representation Mixed-member majoritarian representation (MMM) is type of a mixed electoral system combining winner-take-all and proportional methods, where the disproportional results of the winner-take-all part are dominant over the ''proportional'' compon ...
and parallel voting refer to two different things. Parallel voting refers to a ''rule'' for computing each party's representation in a legislature, which involves two voting systems operating in parallel, with one being layered ( superimposed) on top of the other. By contrast, mixed-member majoritarian representation refers to the ''results'' of the system, i.e. the system retains the advantage that some parties parties get in the winner-take-all side of the system. For this reason, parallel voting is not always mixed-member majoritarian. For example, parallel voting may use a two proportional systems like STV and list-PR and then it would not be mixed-member majoritarian, and a majority bonus system (which is not the same as parallel voting) may also be considered mixed majoritarian. In addition, some mixed-member majoritarian systems are not parallel, in that they allow for interaction (limited compensation) between the two components, for example this is the case in South Korea and Mexico. In South Korea, the hybrid of parallel voting and seat linkage compensation, being between the MMP and MMM type of representation has been called mixed-member semi-proportional representation as well. Unlike
mixed-member proportional representation Mixed-member proportional representation (MMP or MMPR) is a type of representation provided by some mixed electoral system, mixed electoral systems which combine local Winner-take-all system, winner-take-all elections with a Compensation (el ...
, where party lists are used to achieve an overall proportional result in the legislature, under parallel voting, proportionality is confined only to the list seats. Therefore, a party that secured, say, 5% of the vote will have only 5% of the ''list'' seats, and not 5% of all the seats in the legislature.


Advantages and disadvantages


Representation for smaller parties

The major critique of parallel systems is that they cannot guarantee overall proportionality. Large parties can win very large majorities, disproportionate to their percentage vote. Parallel voting systems allow smaller parties that cannot win individual elections to secure at least some representation in the legislature; however, unlike in a proportional system they will have a substantially smaller delegation than their share of the total vote. This is seen by advocates of proportional systems to be better than elections using only first-past-the-post, but still unfair towards constituents of smaller parties. If there is also a threshold for list seats, parties which are too small to reach the threshold are unable to achieve any representation, unless they have a very strong base in certain constituencies to gain individual seats. Smaller parties are still disadvantaged as the larger parties still predominate. Voters of smaller parties may tactically vote for candidates of larger parties to avoid wasting their constituency vote. If the smaller party close to the threshold may refrain from voting for their preferred party in favour of a larger party to avoid wasting their list vote as well. In countries where there is one dominant party and a divided opposition, the proportional seats may be essential for allowing an effective opposition. Those who favour majoritarian systems argue that supplementary seats allocated proportionally increases the chances that no party will receive a majority in an assembly, leading to minority or coalition governments.; the largest parties may need to rely on the support of smaller ones in order to form a government. Those who favour proportional representation see this as an advantage as parties may not govern alone, but have to compromise. It is also argued that parallel voting does not lead to the degree of fragmentation found in party systems under pure forms of
proportional representation Proportional representation (PR) refers to any electoral system under which subgroups of an electorate are reflected proportionately in the elected body. The concept applies mainly to political divisions (Political party, political parties) amon ...
.Reynolds et al (2008), ''Electoral System Design: The New International IDEA Handbook'', Sweden: International Institute for Democracy and Electoral Assistance, pg. 112


Two types of representatives

Because voters have two votes, one for a constituency candidate and one for a list, there is a critique that two classes of representatives will emerge under a parallel voting system: with one class beholden to their electorate seat, and the other concerned only with their party. Some consider this as an advantage as local as well as national interests will be represented. Some prefer systems where every constituency and therefore every constituent has only one representative, while others prefer a system where every MP represents the electorate as a whole as this is reflected in the electoral system as well.


Compared to MMP and AMS

Parallel systems are often contrasted with mixed-member proportional systems (MMP) or the
additional member system The additional-member system (AMS) is a two-vote seat-linkage-based mixed electoral system used in the United Kingdom in which most legislator, representatives are elected in single-member districts (SMDs), and a fixed number of other "addition ...
(AMS). There are a unique set of advantages and disadvantages that apply to these specific comparisons. A party that can
gerrymander Gerrymandering, ( , originally ) defined in the contexts of Representative democracy, representative electoral systems, is the political manipulation of Boundary delimitation, electoral district boundaries to advantage a Political party, pa ...
local districts can win more than its share of seats. So parallel systems need fair criteria to draw district boundaries. (Under MMP a gerrymander can help a local candidate, but it cannot raise a major party’s share of seats, while under AMS the effects of gerrymandering are reduced by the compensation)
Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
, and subsequently
Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...
and
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
adopted a parallel system to provide incentives for greater party cohesiveness. The party is sure to elect the candidates at the top of its list, guaranteeing safe seats for the leadership. By contrast, under the MMP or AMS system a party that does well in the local seats will not need or receive any compensatory list seats, so the leadership might have to run in the local seats. Certain types of AMS can be made ''de facto'' parallel systems by tactical voting and parties using decoy lists, which (other) MMP systems generally avoid. This specific type of tactical voting does not occur in parallel voting systems as there is no interaction between its systems to exploit in a way that makes it irrelevant. However, other types of tactical voting (such as compromising) are more relevant under parallel voting, than under AMS, and are virtually irrelevant under MMP. Tactical voting by supporters of larger parties in favour of allied smaller parties close to a threshold, to help their entry to parliament are a possibility in any parallel, AMS or MMP system with an electoral threshold. Parallel systems support the creation of single-party majorities more often than MMP or AMS systems, this may be a positive or a negative depending on the view of the voter.


Use


Current use

Parallel voting is currently used in the following countries:


Philippines

The Philippines' electoral system for Congress is an exceptional case. Political parties running for party-list seats are legally required to be completely separate from those running in constituency seats. Furthermore, political parties are capped at 3 seats (out of 20% of seats, or about 60 seats). As a result, the mixed-member system utilized in the Philippines is not representative at all of the share of the vote that "normal" political parties obtain (even amongst mixed-member majoritarian systems), let alone for those in full proportional representation systems.


Hybrid use and similar systems

*
Hungary Hungary is a landlocked country in Central Europe. Spanning much of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and ...
's
National Assembly In politics, a national assembly is either a unicameral legislature, the lower house of a bicameral legislature, or both houses of a bicameral legislature together. In the English language it generally means "an assembly composed of the repr ...
uses a system where the parallel voting component shares a pool of seats (93) with the vote transfer system and with the minority list seats with a reduced entry threshold. This means the number of seats effectively assigned proportionally based on the parallel party list votes is unknown/unknowable before the election takes place. * Italy: Starting with the 2018 election, both houses of the
Italian parliament The Italian Parliament () is the national parliament of the Italy, Italian Republic. It is the representative body of Italian citizens and is the successor to the Parliament of the Kingdom of Sardinia (1848–1861), the Parliament of the Kingd ...
are elected using a system similar to parallel voting. 62.5% of the seats are assigned proportionally to party lists; party lists are also linked in coalitions supporting constituency candidates running for the remaining 37.5% of the available seats, who are elected by means of a first-past-the-post system. Electors have a single vote with two-fold effects for a party list (proportional) and its associated local candidate (majoritarian). Split-ticket voting is not allowed, a voter may mark their ballots only next to a list, a candidate, or a list and a candidate associated with it and all of these votes has the same effect. If a voter marks a candidate not associated with the list they marked, like voters may under parallel voting, the vote is invalid under the Italian system. * Jersey (UK) * Monaco * Mexico: In contrast to the parallel voting system for the Chamber of Deputies, for electing the Chamber of Senators (upper house), a single (party list) vote is used similarly to the Italian system. However, constituencies have 3 seats with a type of limited (party block) voting being used: 2 seats are given to the largest party and 1 to the second largest party. Party-list PR is used for the nationwide seats. * Pakistan * Seychelles


Former use

*
Albania Albania ( ; or ), officially the Republic of Albania (), is a country in Southeast Europe. It is located in the Balkans, on the Adriatic Sea, Adriatic and Ionian Seas within the Mediterranean Sea, and shares land borders with Montenegro to ...
used parallel voting in the 1996 and 1997 elections (before switching to
mixed-member proportional representation Mixed-member proportional representation (MMP or MMPR) is a type of representation provided by some mixed electoral system, mixed electoral systems which combine local Winner-take-all system, winner-take-all elections with a Compensation (el ...
from 2001 to
2005 2005 was designated as the International Year for Sport and Physical Education and the International Year of Microcredit. The beginning of 2005 also marked the end of the International Decade of the World's Indigenous Peoples, Internationa ...
). * Argentina:
Santiago del Estero Province Santiago del Estero (), also known simply as Santiago, is a Provinces of Argentina, province in the north of Argentina. Neighboring provinces, clockwise from the north, are Salta Province, Salta, Chaco Province, Chaco, Santa Fe Province, Santa Fe, ...
(1997–2009) *
Armenia Armenia, officially the Republic of Armenia, is a landlocked country in the Armenian Highlands of West Asia. It is a part of the Caucasus region and is bordered by Turkey to the west, Georgia (country), Georgia to the north and Azerbaijan to ...
*
Azerbaijan Azerbaijan, officially the Republic of Azerbaijan, is a Boundaries between the continents, transcontinental and landlocked country at the boundary of West Asia and Eastern Europe. It is a part of the South Caucasus region and is bounded by ...
's
National Assembly In politics, a national assembly is either a unicameral legislature, the lower house of a bicameral legislature, or both houses of a bicameral legislature together. In the English language it generally means "an assembly composed of the repr ...
(the Milli Məclis) had previously used an SM system in which 100 members were elected for five-year terms in single-seat constituencies and 25 were members were elected by proportional representation. Since the latest election Azerbaijan has returned to electing members from single-member constituencies. Due to the corruption present within Azerbaijan, the limited proportionality that SM was able to offer had little effect. *
Bulgaria Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is situated on the eastern portion of the Balkans directly south of the Danube river and west of the Black Sea. Bulgaria is bordered by Greece and Turkey t ...
(1990, 2009) *
Croatia Croatia, officially the Republic of Croatia, is a country in Central Europe, Central and Southeast Europe, on the coast of the Adriatic Sea. It borders Slovenia to the northwest, Hungary to the northeast, Serbia to the east, Bosnia and Herze ...
(1993–2001) *
Egypt Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...
(2020) *
Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...
(1990–2024): Georgia initially used a two-round system for its constituency seats. Up until 2016, 73 seats out of 150 seats were allocated in constituencies. In the 2020 election, this number was reduced to 30 out of 150 as a result of the
2019 protests Nineteen or 19 may refer to: * 19 (number) * One of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (1987 film), a 1987 science fiction film * '' 19-Nineteen'', a 2009 South Korean film * '' D ...
. By 2024, Georgia will switch to a fully proportional electoral system. *
Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
(1993–2005, with modifications) *
North Macedonia North Macedonia, officially the Republic of North Macedonia, is a landlocked country in Southeast Europe. It shares land borders with Greece to the south, Albania to the west, Bulgaria to the east, Kosovo to the northwest and Serbia to the n ...
(1998) *
Palestinian Authority The Palestinian Authority (PA), officially known as the Palestinian National Authority (PNA), is the Fatah-controlled government body that exercises partial civil control over the Palestinian enclaves in the Israeli occupation of the West Bank, ...
(
2005 2005 was designated as the International Year for Sport and Physical Education and the International Year of Microcredit. The beginning of 2005 also marked the end of the International Decade of the World's Indigenous Peoples, Internationa ...
), for the next election, the system was changed to
party-list proportional representation Party-list proportional representation (list-PR) is a system of proportional representation based on preregistered Political party, political parties, with each party being Apportionment (politics), allocated a certain number of seats Apportionm ...
. *
South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korea, Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and t ...
: (1988-2024)
National Assembly In politics, a national assembly is either a unicameral legislature, the lower house of a bicameral legislature, or both houses of a bicameral legislature together. In the English language it generally means "an assembly composed of the repr ...
used parallel voting from 1988 to 2019. From 2019 to 2024, it uses a hybrid system of parallel voting and mixed-member proportional, with both compensatory seats (30) and supplementary seats (17). *
Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...
: In the last elections to the
Verkhovna Rada The Verkhovna Rada ( ; VR), officially the Verkhovna Rada of Ukraine, is the unicameralism, unicameral parliament of Ukraine. It consists of 450 Deputy (legislator), deputies presided over by a speaker. The Verkhovna Rada meets in the Verkhovn ...
, a parallel voting system was used. 50% of seats are distributed under party lists with a 5%
election threshold The electoral threshold, or election threshold, is the minimum share of votes that a candidate or political party requires before they become entitled to representation or additional seats in a legislature. This limit can operate in various w ...
and 50% through
first-past-the-post First-past-the-post (FPTP)—also called choose-one, first-preference plurality (FPP), or simply plurality—is a single-winner voting rule. Voters mark one candidate as their favorite, or First-preference votes, first-preference, and the cand ...
in
single-member constituencies A single-member district or constituency is an electoral district represented by a single officeholder. It contrasts with a Multiwinner voting, multi-member district, which is represented by multiple officeholders. In some countries, such as ...
. The method of 50/50 mixed elections was used in the 2002, 2012, 2014 and 2019 elections; however, in 2006 and 2007, the elections were held under a proportional system only. According to the election law that became valid on 1 January 2020 the next election to the Verkhovna Rada again will be held under a proportional scheme.


Proposals for use

In
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
, the Royal Commission on the Electoral System reviewed the electoral system in 1985–86 and considered parallel voting as a possible replacement for the single-member plurality (SMP) system in use at the time. The commission came to the conclusion that parallel voting would be unable to overcome the shortcomings of New Zealand's previous SMP system. The total seats won by a party would likely remain out of proportion to its share of votes—there would be a "considerable imbalance between share of the votes and share of the total seats"—and it would be unfair to minor parties (who would struggle to win constituency seats).Royal Commission on Electoral Systems (1986), ''Report of the Royal Commission on the Electoral System: towards a better democracy'', Wellington N.Z.: Government Printing, pg. 39. In the indicative 1992 electoral referendum, parallel voting was one of four choices for an alternative electoral system (alongside MMP, AV and STV), but came last with only 5.5 percent of the vote. An overwhelming majority of voters supported MMP, as recommended by the Royal Commission, and the system was adopted after the 1993 electoral referendum. In another referendum in 2011, 57.77% of voters elected to keep current the MMP system. Among the 42.23% that voted to change to another system, a plurality (46.66%) preferred a return to the pre-1994 SMP system. Parallel voting was the second-most popular choice, with 24.14% of the vote.


References


External links


A Handbook of Electoral System Design
from
International IDEA The International Institute for Democracy and Electoral Assistance (International IDEA) is an intergovernmental organization that works to support and strengthen democratic institutions and processes around the world, to develop sustainable, ef ...

Electoral Design Reference Materials
from th
ACE Project


suggests Parallel Voting by PR and Condorcet rules to make a balanced council with a few central swing voters. {{voting systems Electoral systems Semi-proportional electoral systems Mixed electoral systems