Bicameral System
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Bicameralism is a type of
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 ...
that is divided into two separate assemblies, chambers, or houses, known as a bicameral legislature. Bicameralism is distinguished from
unicameralism Unicameralism (from ''uni''- "one" + Latin ''camera'' "chamber") is a type of legislature consisting of one house or assembly that legislates and votes as one. Unicameralism has become an increasingly common type of legislature, making up nearly ...
, in which all members deliberate and vote as a single group. , roughly 40% of the world's national legislatures are bicameral, while unicameralism represents 60% nationally and much more at the subnational level. Often, the members of the two chambers are elected or selected by different methods, which vary from
jurisdiction Jurisdiction (from Latin 'law' and 'speech' or 'declaration') is the legal term for the legal authority granted to a legal entity to enact justice. In federations like the United States, the concept of jurisdiction applies at multiple level ...
to jurisdiction. This can often lead to the two chambers having very different compositions of members. Enactment of
primary legislation Primary legislation and secondary legislation (the latter also called delegated legislation or subordinate legislation) are two forms of law, created respectively by the legislative and executive branches of governments in representative democ ...
often requires a concurrent majority—the approval of a majority of members in each of the chambers of the legislature. When this is the case, the legislature may be called an example of perfect bicameralism. However, in many parliamentary and semi-presidential systems, the house to which the executive is responsible (e.g.
House of Commons The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...
of the UK and
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 ...
of
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
) can overrule the other house (e.g.
House of Lords The House of Lords is the upper house of the Parliament of the United Kingdom. Like the lower house, the House of Commons of the United Kingdom, House of Commons, it meets in the Palace of Westminster in London, England. One of the oldest ext ...
of the UK and
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
of France) and may be regarded as an example of imperfect bicameralism. Some legislatures lie in between these two positions, with one house able to overrule the other only under certain circumstances.


History of bicameral legislatures

The British Parliament is often referred to as the " Mother of Parliaments" (in fact a misquotation of
John Bright John Bright (16 November 1811 – 27 March 1889) was a British Radical and Liberal statesman, one of the greatest orators of his generation and a promoter of free trade policies. A Quaker, Bright is most famous for battling the Corn La ...
, who remarked in 1865 that "England is the Mother of Parliaments") because the
British Parliament The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative body of the United Kingdom, and may also legislate for the Crown Dependencies and the British Overseas Territories. It meets at the Palace of ...
has been the model for most other parliamentary systems, and its Acts have created many other parliaments. The origins of British bicameralism can be traced to 1341, when the Commons met separately from the nobility and clergy for the first time, creating what was effectively an Upper Chamber and a Lower Chamber, with the knights and burgesses sitting in the latter. This Upper Chamber became known as the
House of Lords The House of Lords is the upper house of the Parliament of the United Kingdom. Like the lower house, the House of Commons of the United Kingdom, House of Commons, it meets in the Palace of Westminster in London, England. One of the oldest ext ...
from 1544 onward, and the Lower Chamber became known as the
House of Commons The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...
, collectively known as the
Houses of Parliament The Palace of Westminster is the meeting place of the Parliament of the United Kingdom and is located in London, England. It is commonly called the Houses of Parliament after the House of Commons and the House of Lords, the two legislative ch ...
. The
Founding Fathers of the United States The Founding Fathers of the United States, often simply referred to as the Founding Fathers or the Founders, were a group of late-18th-century American Revolution, American revolutionary leaders who United Colonies, united the Thirteen Colon ...
also favoured a bicameral legislature. The idea was to have the Senate be wealthier and wiser.
Benjamin Rush Benjamin Rush (April 19, 1813) was an American revolutionary, a Founding Father of the United States and signatory to the U.S. Declaration of Independence, and a civic leader in Philadelphia, where he was a physician, politician, social refor ...
saw this though, and noted that "this type of dominion is almost always connected with opulence". The Senate was created to be a stabilising force, not elected by mass electors, but selected by the State legislators. Senators would be more knowledgeable and more deliberate—a sort of republican nobility—and a counter to what
James Madison James Madison (June 28, 1836) was an American statesman, diplomat, and Founding Fathers of the United States, Founding Father who served as the fourth president of the United States from 1809 to 1817. Madison was popularly acclaimed as the ...
saw as the "fickleness and passion" that could absorb the House. He noted further that "The use of the Senate is to consist in its proceeding with more coolness, with more system and with more wisdom, than the popular branch." Madison's argument led the Framers to grant the Senate prerogatives in foreign policy, an area where steadiness, discretion, and caution were deemed especially important. State legislators chose the Senate, and senators had to possess significant property to be deemed worthy and sensible enough for the position. In 1913, the 17th amendment passed, which mandated choosing Senators by popular vote rather than State legislatures. As part of the
Great Compromise The Connecticut Compromise, also known as the Great Compromise of 1787 or Sherman Compromise, was an agreement reached during the Constitutional Convention of 1787 that in part defined the legislative structure and representation each state ...
, the Founding Fathers invented a new rationale for bicameralism in which the Senate had an equal number of delegates per state, and the House had representatives by relative populations. Many monarchies then followed them to some degree emulated the British "three-tier" model. In the 20th century most countries in Europe and the
Commonwealth A commonwealth is a traditional English term for a political community founded for the common good. The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the 15th century. Originally a phrase (the common-wealth ...
abolished the monarchy, and the upper house. Often a largely ceremonial
head of state A head of state is the public persona of a sovereign state.#Foakes, Foakes, pp. 110–11 "
he head of state He or HE may refer to: Language * He (letter), the fifth letter of the Semitic abjads * He (pronoun), a pronoun in Modern English * He (kana), one of the Japanese kana (へ in hiragana and ヘ in katakana) * Ge (Cyrillic), a Cyrillic letter cal ...
being an embodiment of the State itself or representative of its international persona." The name given to the office of head of sta ...
who formally opens and closes parliament was introduced, a larger house representing the population, and a smaller house mostly representing the regions was established.


Rationale for bicameralism and criticism

Federal states have often adopted it as an awkward compromise between existing power held equally by each state or territory and a more democratic proportional legislature. For states considering a different constitutional arrangement that may shift power to new groupings, bicameralism could be demanded by currently hegemonic groups who would otherwise prevent any structural shift (e.g. military dictatorships, aristocracies). The growing awareness of the complexity of the notion of representation and the multi-functional nature of modern legislatures may be affording incipient new rationales for second chambers, though these do generally remain contested institutions in ways that first chambers are not. An example of political controversy regarding a second chamber has been the debate over the powers of the
Senate of Canada The Senate of Canada () is the upper house of the Parliament of Canada. Together with the Monarchy of Canada#Parliament (King-in-Parliament), Crown and the House of Commons of Canada, House of Commons, they compose the Bicameralism, bicameral le ...
or the election of the
Senate of France The Senate (, ) is the upper house of the French Parliament, with the lower house being the National Assembly (France), National Assembly, the two houses constituting the legislature of France. It is made up of 348 senators (''sénateurs'' and ...
. Bicameral legislatures as a result have been trending down for some time with
unicameral Unicameralism (from ''uni''- "one" + Latin ''camera'' "chamber") is a type of legislature consisting of one house or assembly that legislates and votes as one. Unicameralism has become an increasingly common type of legislature, making up nearly ...
, proportional legislatures seen as more democratic and effective. The relationship between the two chambers varies: in some cases, they have equal power, while in others, one chamber (the directly elected lower house with proportional representation) is clearly superior in its powers. The first tends to be the case in federal systems and those with presidential governments. The second tends to be the case in unitary states with
parliamentary system A parliamentary system, or parliamentary democracy, is a form of government where the head of government (chief executive) derives their Election, democratic legitimacy from their ability to command the support ("confidence") of a majority of t ...
s. There are two streams of thought: critics believe bicameralism makes meaningful political reforms more difficult to achieve and increases the risk of gridlock—particularly in cases where both chambers have similar powers—while proponents argue the merits of the "
checks and balances The separation of powers principle functionally differentiates several types of state power (usually law-making, adjudication, and execution) and requires these operations of government to be conceptually and institutionally distinguishabl ...
" provided by the bicameral model, which they believe help prevent ill-considered legislation.


Communication between houses

Formal communication between houses is by various methods, including: ;Sending messages: Formal notices, such as of resolutions or the passing of bills, usually done in writing, via the
clerk A clerk is a white-collar worker who conducts record keeping as well as general office tasks, or a worker who performs similar sales-related tasks in a retail environment. The responsibilities of clerical workers commonly include Records managem ...
and speaker of each house. ;Transmission: of bills or amendment to bills requiring agreement from the other house. ;
Joint session A joint session or joint convention is, most broadly, when two normally separate decision-making groups meet, often in a special session or other extraordinary meeting, for a specific purpose. Most often it refers to when both houses of a bicam ...
: a
plenary session A plenary session or plenum is a session of a conference or deliberative assembly in which all parties or members are present. Such a session may include a broad range of content, from keynotes to panel discussions, and is not necessarily r ...
of both houses at the same time and place. ;
Joint committees A joint committee is a committee made up of members of the two chambers of a bicameral legislature. In other contexts, it refers to a committee with members from more than one organization. Germany A joint committee ('' Gemeinsamer Ausschuss'') co ...
:which may be formed by committees of each house agreeing to join, or by joint resolution of each house. The
United States Congress The United States Congress is the legislature, legislative branch of the federal government of the United States. It is a Bicameralism, bicameral legislature, including a Lower house, lower body, the United States House of Representatives, ...
has
conference committee A committee or commission is a body of one or more persons subordinate to a deliberative assembly or other form of organization. A committee may not itself be considered to be a form of assembly or a decision-making body. Usually, an assembly o ...
s to resolve discrepancies between House and Senate versions of a bill, similar to "Conferences" in Westminster parliaments. ;Conferences:Conferences of the Houses of the English (later British) Parliament met in the Painted Chamber of the
Palace of Westminster The Palace of Westminster is the meeting place of the Parliament of the United Kingdom and is located in London, England. It is commonly called the Houses of Parliament after the House of Commons and the House of Lords, the two legislative ch ...
. Historically there were two distinct types: "ordinary" and "free". The British Parliament last held an ordinary conference in 1860—its elaborate procedure yielding to the simpler sending of messages. A free conference resolves a dispute through "managers" meeting less formally in private. The last free conference at Westminster was in 1836 on an amendment to the
Municipal Corporations Act 1835 The Municipal Corporations Act 1835 ( 5 & 6 Will. 4. c. 76), sometimes known as the Municipal Reform Act, was an act of the Parliament of the United Kingdom that reformed local government in the incorporated boroughs of England and Wales. The le ...
; the previous one had been in 1740—with not much more success than ordinary conferences, the free type yielded to the greater transparency of messages. In the
Parliament of Australia The Parliament of Australia (officially the Parliament of the Commonwealth and also known as the Federal Parliament) is the federal legislature of Australia. It consists of three elements: the Monarchy of Australia, monarch of Australia (repr ...
there have been two formal conferences, in 1930 and 1931, but many informal conferences. the "Conference of Managers" remains the usual procedure for dispute resolution in the
Parliament of South Australia The Parliament of South Australia is the bicameral legislature of the Australian state of South Australia. It consists of the 47-seat South Australian House of Assembly, House of Assembly (lower house) and the 22-seat South Australian Legislati ...
. In the
Parliament of New South Wales The Parliament of New South Wales, formally the Legislature of New South Wales, (definition of "The Legislature") is the bicameral legislative body of the Australian state of New South Wales (NSW). It consists of the Monarch, the New South Wa ...
in 2011, the Legislative Assembly requested a free conference with the
Legislative Council A legislative council is the legislature, or one of the legislative chambers, of a nation, colony, or subnational division such as a province or state. It was commonly used to label unicameral or upper house legislative bodies in the Brit ...
over a bill on graffiti; after a year the Council refused, describing the mechanism as archaic and inappropriate. The two houses of the
Parliament of Canada The Parliament of Canada () is the Canadian federalism, federal legislature of Canada. The Monarchy of Canada, Crown, along with two chambers: the Senate of Canada, Senate and the House of Commons of Canada, House of Commons, form the Bicameral ...
have also used conferences, but not since 1947 (although they retain the option).


Examples of bicameralism at the national level


Federal

Some countries, such as
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 ...
,
Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
,
Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...
,
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
,
Bosnia and Herzegovina Bosnia and Herzegovina, sometimes known as Bosnia-Herzegovina and informally as Bosnia, is a country in Southeast Europe. Situated on the Balkans, Balkan Peninsula, it borders Serbia to the east, Montenegro to the southeast, and Croatia to th ...
,
Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...
,
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
,
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
,
India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
,
Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...
,
Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
,
Nepal Nepal, officially the Federal Democratic Republic of Nepal, is a landlocked country in South Asia. It is mainly situated in the Himalayas, but also includes parts of the Indo-Gangetic Plain. It borders the Tibet Autonomous Region of China Ch ...
,
Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...
,
Pakistan Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the List of countries and dependencies by population, fifth-most populous country, with a population of over 241.5 million, having the Islam by country# ...
,
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 ...
,
Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
, and the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
, link their bicameral systems to their federal political structure. In the United States, Australia, Mexico, Brazil, and Nepal for example, each state or province is given the same number of seats in one of the houses of the legislature, despite variance between the populations of the states or provinces.


Australia

The bicameral
Parliament of Australia The Parliament of Australia (officially the Parliament of the Commonwealth and also known as the Federal Parliament) is the federal legislature of Australia. It consists of three elements: the Monarchy of Australia, monarch of Australia (repr ...
consists of two Houses: the
lower house A lower house is the lower chamber of a bicameral legislature, where the other chamber is the upper house. Although styled as "below" the upper house, in many legislatures worldwide, the lower house has come to wield more power or otherwise e ...
is called the
House of Representatives House of Representatives is the name of legislative bodies in many countries and sub-national entities. In many countries, the House of Representatives is the lower house of a bicameral legislature, with the corresponding upper house often ...
and the
upper house An upper house is one of two Legislative chamber, chambers of a bicameralism, bicameral legislature, the other chamber being the lower house. The house formally designated as the upper house is usually smaller and often has more restricted p ...
is named the
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
. As of 31 August 2017, the lower house has 151 members, each elected from single-member constituencies, known as electoral divisions (commonly referred to as "electorates" or "seats") using full-preference
instant-runoff voting Instant-runoff voting (IRV; ranked-choice voting (RCV), preferential voting, alternative vote) is a single-winner ranked voting election system where Sequential loser method, one or more eliminations are used to simulate Runoff (election), ...
. This tends to lead to the chamber being dominated by two major groups, the Liberal/
National National may refer to: Common uses * Nation or country ** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen Places in the United States * National, Maryland, c ...
Coalition A coalition is formed when two or more people or groups temporarily work together to achieve a common goal. The term is most frequently used to denote a formation of power in political, military, or economic spaces. Formation According to ''A G ...
and the Labor Party. The government of the day must achieve the confidence of this House to gain and hold power. The upper house, the Senate, is also popularly elected, under the
single transferable vote The single transferable vote (STV) or 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 ballot. Voters have the option to rank candidates, and their vot ...
system 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 ...
. There are a total of 76 senators: 12 senators are elected from each of the 6
Australian state The states and territories are the national subdivisions and second level of government of Australia. The states are partially sovereignty, sovereign, administrative divisions that are autonomous administrative division, self-governing polity, ...
s (regardless of population) and 2 from each of the 2 autonomous internal territories (the
Australian Capital Territory The Australian Capital Territory (ACT), known as the Federal Capital Territory until 1938, is an internal States and territories of Australia, territory of Australia. Canberra, the capital city of Australia, is situated within the territory, an ...
and the
Northern Territory The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regi ...
). This makes the total number 76, i.e. 6×12 + 2×2. In many respects, Australia is a unique hybrid with influences from the
United States Constitution The Constitution of the United States is the Supremacy Clause, supreme law of the United States, United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally includi ...
, as well as from the traditions and conventions of the
Westminster system The Westminster system, or Westminster model, is a type of parliamentary system, parliamentary government that incorporates a series of Parliamentary procedure, procedures for operating a legislature, first developed in England. Key aspects of ...
and some indigenous features. Australia is exceptional in this sense because the government faces a fully elected upper house, the
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
, which must be willing to pass all its legislation. Although only the lower house, the House of Representatives, can hold a no-confidence vote against the government, in practice the support of the Senate is also necessary in order to govern. The Senate maintains the ability similar to that held by the British House of Lords, prior to the enactment of the
Parliament Act 1911 The Parliament Act 1911 ( 1 & 2 Geo. 5. c. 13) is an act of the Parliament of the United Kingdom. It is constitutionally important and partly governs the relationship between the House of Commons and the House of Lords, the two Houses of Parl ...
, to block supply against the government of the day. A government that is unable to obtain supply can be dismissed by the
governor-general Governor-general (plural governors-general), or governor general (plural governors general), is the title of an official, most prominently associated with the British Empire. In the context of the governors-general and former British colonies, ...
: however, this is generally considered a last resort and is a highly controversial decision to take, given the conflict between the traditional concept of confidence as derived from the lower house and the ability of the Senate to block supply (see
1975 Australian constitutional crisis The 1975 Australian constitutional crisis, also known simply as the Dismissal, culminated on 11 November 1975 with the dismissal from office of the Prime Minister of Australia, prime minister, Gough Whitlam of the Australian Labor Party (ALP), ...
). Many political scientists have held that the Australian system of government was consciously devised as a blend or hybrid of the Westminster and the United States systems of government, especially since the Australian Senate is a powerful upper house like the U.S. Senate; this notion is expressed in the nickname "the Washminster mutation". Unlike upper houses in most Westminster parliamentary systems, the Australian Senate is vested with significant power, including the capacity to block legislation initiated by the government in the House of Representatives. This block can however be overridden in a joint sitting after a
double dissolution A double dissolution is a procedure permitted under the Australian Constitution to resolve deadlocks in the bicameral Parliament of Australia between the House of Representatives (lower house) and the Senate (upper house). A double dissolutio ...
election, at which the House of Representatives has the dominant numbers. As a result of proportional representation, the chamber features a multitude of parties vying for power. The governing party in the lower house rarely has a majority in the Senate, and so generally needs to negotiate with other parties and independents to get legislation passed. This variant of bicameralism has also been further explored by Tarunabh Khaitan, who coined the phrase "Moderated Parliamentarism" to describe a parliamentary system with several distinctive features: mixed bicameralism, moderated (but distinct) electoral systems for each chamber, weighted multipartisanship, asynchronous electoral schedules, and deadlock resolution through conference committees.


Canada

Canada's elected lower house, the
House of Commons The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...
, comprises Members of Parliament (MPs) from single-member "ridings" based mainly on population (updated every 10 years using Census data). The Commons is democratically elected every four years (constitutionally up to five years). In contrast, in Canada's upper house, Senators are appointed to serve until age 75 by the
Governor General Governor-general (plural governors-general), or governor general (plural governors general), is the title of an official, most prominently associated with the British Empire. In the context of the governors-general and former British colonies, ...
on the advice of the
Prime Minister A prime minister or chief of cabinet is the head of the cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system. A prime minister is not the head of state, but r ...
through an Independent Advisory Board as of 2016. The government (i.e. executive) is responsible to and must maintain the confidence of the elected House of Commons. Although the two chambers formally have many of the same powers, this accountability clearly makes the Commons dominant—determining which party is in power, approving its proposed budget, and (largely) the laws enacted. The Senate primarily acts as a chamber of revision: it rarely rejects bills passed by the Commons but does regularly amend them; such amendments respect each bill's purpose, so they are usually acceptable to the Commons. The Senate's power to investigate issues of concern to Canada can raise their profile (sometimes sharply) on voters' political agendas.


Others

In German, Indian, and Pakistani systems, the upper houses (the Bundesrat, the
Rajya Sabha Rajya Sabha (Council of States) is the upper house of the Parliament of India and functions as the institutional representation of India’s federal units — the states and union territories.https://rajyasabha.nic.in/ It is a key component o ...
, and the
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
respectively) are even more closely linked with the federal system, being appointed or elected directly by the governments or legislatures of each
German German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...
or
Indian state India is a federal union comprising 28 states and 8 union territories, for a total of 36 subnational entities. The states and union territories are further subdivided into 800 districts and smaller administrative divisions by the respe ...
, or
Pakistani province The administrative units of Pakistan comprise four provinces, one federal territory, and two disputed territories: the provinces of Punjab, Sindh, Khyber Pakhtunkhwa, and Balochistan; the Islamabad Capital Territory; and the administrativ ...
. This was also the case in the United States before the Seventeenth Amendment was adopted. Because of this coupling to the
executive branch The executive branch is the part of government which executes or enforces the law. Function The scope of executive power varies greatly depending on the political context in which it emerges, and it can change over time in a given country. In ...
, German legal doctrine does not treat the ''Bundesrat'' as the second chamber of a bicameral system formally. Rather, it sees the ''Bundesrat'' and the ''
Bundestag The Bundestag (, "Federal Diet (assembly), Diet") is the lower house of the Germany, German Federalism in Germany, federal parliament. It is the only constitutional body of the federation directly elected by the German people. The Bundestag wa ...
'' as independent constitutional bodies. Only the directly elected ''Bundestag'' is considered the parliament. In the German ''Bundesrat'', the various ''Länder'' have between three and six votes; thus, while the less populated states have a lower weight, they still have a stronger voting power than would be the case in a system based proportionately on population, as the most populous ''Land'' currently has about 27 times the population of the least populous. The Indian upper house does not have the states represented equally, but on the basis of their population. There is also bicameralism in countries that are not federations, but have upper houses with representation on a territorial basis. For example, in South Africa, the
National Council of Provinces The National Council of Provinces (NCOP) is the upper house of the Parliament of South Africa under the post-apartheid constitution of South Africa, constitution which came into full effect in 1997. It replaced the former Senate of South Africa# ...
(and before 1997, the
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
) has its members chosen by each
province A province is an administrative division within a country or sovereign state, state. The term derives from the ancient Roman , which was the major territorial and administrative unit of the Roman Empire, Roman Empire's territorial possessions ou ...
's legislature. In Spain, the
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
functions as a ''de facto'' territorially based upper house, and there has been some pressure from the
Autonomous Communities The autonomous communities () are the first-level administrative divisions of Spain, created in accordance with the Spanish Constitution of 1978, with the aim of guaranteeing limited autonomy to the nationalities and regions that make up Spa ...
to reform it into a strictly territorial chamber. The
European Union The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
maintains a somewhat close to bicameral legislative system consisting of the
European Parliament The European Parliament (EP) is one of the two 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 ...
, which is elected in elections on the basis of universal suffrage, and the
Council of the European Union The Council of the European Union, often referred to in the treaties and other official documents simply as the Council, and less formally known as the Council of Ministers, is the third of the seven institutions of the European Union (EU) a ...
, which consists of one representative for each government of member countries, who are competent for a relevant field of legislation. Though the European Union has a highly unusual character in terms of legislature, one could say that the closest point of equivalency lies within bicameral legislatures. The European Union is considered neither a country nor a state, but it enjoys the power to address national Governments in many areas.


Aristocratic and post-aristocratic

In a few countries, bicameralism involves the juxtaposition of democratic and aristocratic elements.


House of Lords of the United Kingdom

The best known example is the British
House of Lords The House of Lords is the upper house of the Parliament of the United Kingdom. Like the lower house, the House of Commons of the United Kingdom, House of Commons, it meets in the Palace of Westminster in London, England. One of the oldest ext ...
, which includes a number of
hereditary peer The hereditary peers form part of the peerage in the United Kingdom. As of April 2025, there are 800 hereditary peers: 30 dukes (including six royal dukes), 34 marquesses, 189 earls, 108 viscounts, and 439 barons (not counting subsidiary ...
s. The House of Lords is a vestige of the aristocratic system that once predominated in British politics, while the other house, the
House of Commons The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...
, is entirely elected. Over the years, some have proposed reforms to the House of Lords, some of which have been at least partly successful. The
House of Lords Act 1999 The House of Lords Act 1999 (c. 34) is an act of the Parliament of the United Kingdom that reformed the House of Lords, one of the chambers of Parliament. The Act was given royal assent on 11 November 1999. For centuries, the House of Lords ...
limited the number of hereditary peers (as opposed to
life peer In the United Kingdom, life peers are appointed members of the peerage whose titles cannot be inherited, in contrast to hereditary peers. Life peers are appointed by the monarch on the advice of the prime minister. With the exception of the D ...
s, appointed by the
Monarch A monarch () is a head of stateWebster's II New College Dictionary. "Monarch". Houghton Mifflin. Boston. 2001. p. 707. Life tenure, for life or until abdication, and therefore the head of state of a monarchy. A monarch may exercise the highest ...
on the advice of the
Prime Minister A prime minister or chief of cabinet is the head of the cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system. A prime minister is not the head of state, but r ...
) to 92, down from around 700. Of these 92, one is the
Earl Marshal Earl Marshal (alternatively marschal or marischal) is a hereditary royal officeholder and chivalric title under the Monarchy of the United Kingdom, sovereign of the United Kingdom used in England (then, following the Act of Union 1800, in the U ...
, a hereditary office always held by the
Duke of Norfolk Duke of Norfolk is a title in the peerage of England. The premier non-royal peer, the Duke of Norfolk is additionally the premier duke and earl in the English peerage. The seat of the Duke of Norfolk is Arundel Castle in Sussex, although the t ...
, one is the
Lord Great Chamberlain The Lord Great Chamberlain of England is the sixth of the Great Officers of State (United Kingdom), Great Officers of State, ranking beneath the Lord Privy Seal but above the Lord High Constable of England, Lord High Constable. The office of Lo ...
, a hereditary office held by turns, currently by
Baron Carrington Baron Carrington is a title that has been created three times, once in the Peerage of England, once in the Peerage of Ireland and once in the Peerage of Great Britain. History The first creation came in the Peerage of England in 1643 in favour ...
, and the other 90 are elected by all sitting peers. Hereditary peers elected by the House to sit as representative peers sit for life; when a representative peer dies, there is a by-election to fill the vacancy. The power of the House of Lords to block legislation is curtailed by the
Parliament Acts 1911 and 1949 The Parliament Acts 1911 and 1949 are two Acts of the Parliament of the United Kingdom, which form part of the constitution of the United Kingdom. Section 2(2) of the Parliament Act 1949 provides that the two Acts are to be construed as one. ...
. Peers can introduce bills except Money Bills, and all legislation must be passed by both
Houses of Parliament The Palace of Westminster is the meeting place of the Parliament of the United Kingdom and is located in London, England. It is commonly called the Houses of Parliament after the House of Commons and the House of Lords, the two legislative ch ...
. If not passed within two sessions, the
House of Commons The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...
can override the Lords' delay by invoking the ''Parliament Act''. Certain legislation, however, must be approved by both Houses without being forced by the Commons under the ''Parliament Act''. These include any bill that would extend the time length of a Parliament, private bills, bills sent to the House of Lords less than one month before the end of a session, and bills that originated in the House of Lords. Life Peers are appointed either by recommendation of the Appointment Commission (the independent body that vets non-partisan peers, typically from academia, business or culture) or by Dissolution Honours, which take place at the end of every Parliamentary term when leaving MPs may be offered a seat to keep their institutional memory. It is traditional to offer a peerage to every outgoing Speaker of the House of Commons. Further reform of the Lords has been proposed; however, no proposed reforms have been able to achieve public consensus or government support. Members of the House of Lords all have an aristocratic title, or are from the
Clergy Clergy are formal leaders within established religions. Their roles and functions vary in different religious traditions, but usually involve presiding over specific rituals and teaching their religion's doctrines and practices. Some of the ter ...
. 26 Archbishops and Bishops of the
Church of England The Church of England (C of E) is the State religion#State churches, established List of Christian denominations, Christian church in England and the Crown Dependencies. It is the mother church of the Anglicanism, Anglican Christian tradition, ...
sit as
Lords Spiritual The Lords Spiritual are the bishops of the Church of England who sit in the House of Lords of the United Kingdom. Up to 26 of the 42 diocesan bishops and archbishops of the Church of England serve as Lords Spiritual (not including retired bish ...
(the
Archbishop of Canterbury The archbishop of Canterbury is the senior bishop and a principal leader of the Church of England, the Primus inter pares, ceremonial head of the worldwide Anglican Communion and the bishop of the diocese of Canterbury. The first archbishop ...
,
Archbishop of York The archbishop of York is a senior bishop in the Church of England, second only to the archbishop of Canterbury. The archbishop is the diocesan bishop of the Diocese of York and the metropolitan bishop of the province of York, which covers the ...
, the
Bishop of London The bishop of London is the Ordinary (church officer), ordinary of the Church of England's Diocese of London in the Province of Canterbury. By custom the Bishop is also Dean of the Chapel Royal since 1723. The diocese covers of 17 boroughs o ...
, the
Bishop of Durham The bishop of Durham is head of the diocese of Durham in the province of York. The diocese is one of the oldest in England and its bishop is a member of the House of Lords. Paul Butler (bishop), Paul Butler was the most recent bishop of Durham u ...
, the
Bishop of Winchester The Bishop of Winchester is the diocesan bishop of the Diocese of Winchester in the Church of England. The bishop's seat (''cathedra'') is at Winchester Cathedral in Hampshire. The Bishop of Winchester has always held ''ex officio'' the offic ...
and the next 21 longest-serving Bishops). It is usual that retiring Archbishops, and certain other Bishops, are appointed to the Crossbencher, Crossbenches and given a life peerage. Until 2009, 12 Lord of Appeal in Ordinary, Lords of Appeal in Ordinary sat in the House as the highest court in the land; they subsequently became justices of the newly created Supreme Court of the United Kingdom. As of 16 February 2021, 803 people sit in the House of Lords, with 92 Hereditary Peers, 26 Lords Spiritual and 685 Life Peers. Membership is not fixed and decreases only on the death, retirement or resignation of a peer.


Japan's former House of Peers

Another example of aristocratic bicameralism was the Japanese House of Peers (Japan), House of Peers, abolished after World War II and replaced with the present House of Councillors.


Unitary states

Many unitary states like Italy, France, the Netherlands, the Philippines, the Czech Republic, the Republic of Ireland and Romania have bicameral systems. In countries such as these, the upper house generally focuses on scrutinizing and possibly vetoing the decisions of the lower house.


Italian Parliament

On the other hand, in Italy the Italian Parliament, Parliament consists of two chambers that have the same role and power: the Italian Senate, Senate (Senate of the Republic, commonly considered the ''upper house'') and the Italian Chamber of Deputies, Chamber of Deputies (considered the ''lower house''). The main difference among the two chambers is the way the two chambers are composed: the deputies, in fact, are elected on a nationwide basis, whilst the members of the Senate are elected on a regional basis: this may lead to different majorities among the two chambers because, for example, a party may be the first nationally but second or third in some regions. Considering that in the Italian Republic the Government needs to win confidence votes in both the chambers, it may happen that a Government has a strong majority (usually) in the Chamber of Deputies and a weak one (or no majority at all) in the Senate. This has led sometimes to legislative deadlocks, and has caused instability in the Italian Government.


Indirectly elected Upper Houses (France, Ireland, Netherlands)

In some of these countries, the upper house is indirectly elected. Members of France's French Senate, Senate and Ireland's Seanad Éireann are chosen by electoral colleges. In Ireland, it consists of members of the lower house, local councillors, the Taoiseach, and graduates of selected universities, while the Netherlands' Senate of the Netherlands, Senate is chosen by members of provincial assemblies (who, in turn, are directly elected).


Semi-bicameral (Hong Kong, Northern Ireland; earlier in Norway, the Netherlands)

In Hong Kong, members of the unicameral Legislative Council (Hong Kong), Legislative Council returned from the democratically elected geographical constituencies and partially democratic Functional constituency (Hong Kong), functional constituencies are required to vote separately since 1998 on motions, bills or amendments to government bills not introduced by the government. The passage of these motions, bills or amendments to government motions or bills requires double majority in both groups simultaneously. (Before 2004, when elections to the Legislative Council from the Election Committee was abolished, members returned through the Election Committee vote with members returned from geographical constituencies.) The double majority requirement does not apply to motions, bills and amendments introduced by the Hong Kong Government, government. Another similar situation are cross-community votes in Northern Ireland when the ''petition of concern'' procedure is invoked. Norway had a kind of Qualified unicameralism, semi-bicameral legislature with two chambers, or departments, within the same elected body, the Storting. These were called the Lagting and the Odelsting, and were abolished after the general election of 2009. According to Morten Søberg, there was a related system in the 1798 constitution of the Batavian Republic.


Examples of bicameralism in subnational entities

In some countries with federal systems, individual states (like those of the U.S. state, United States, Provinces of Argentina, Argentina, States and territories of Australia, Australia and States and territories of India, India) may also have bicameral legislatures. A few such states as Nebraska in the U.S., Queensland in Australia, Bavaria in Germany, and Tucumán Province, Tucumán and Córdoba Province, Argentina, Córdoba in Argentina have later adopted unicameral systems. (States of Brazil, Brazilian states and Provinces of Canada, Canadian provinces all abolished upper houses).


Argentina

Only 8 out of 24 Provinces of Argentina, provinces still have bicameral legislatures, with a Senate and a Chamber of Deputies: Buenos Aires Province, Buenos Aires, Catamarca Province, Catamarca, Corrientes Province, Corrientes, Entre Ríos Province, Entre Ríos, Mendoza Province, Mendoza, Salta Province, Salta, San Luis Province, San Luis (since 1987) and Santa Fe Province, Santa Fe. Tucumán Province, Tucumán and Córdoba Province, Argentina, Córdoba changed to unicameral systems in 1990 and 2001 respectively. Santiago del Estero Province, Santiago del Estero changed to a bicameral legislature in 1884, but changed back to a unicameral system in 1903.


Australia

When the Australian states were founded as British colonies in the 19th century, they each had a bicameral Parliament. The lower house was traditionally elected based on the one-vote-one-value principle, with universal male suffrage, later expanded to women, whereas the upper house was either appointed on the advice of the government or elected, with a strong bias towards country voters and landowners. After Federation of Australia, Federation, these became the state Parliaments. In Queensland, the appointed Queensland Legislative Council, upper house was abolished in 1922, while in New South Wales there were similar attempts at abolition, before the New South Wales Legislative Council, upper house was reformed in the 1970s to provide for direct election. Beginning in the 1970s, Australian states (except Queensland, which is unicameral) began to reform their upper houses to introduce proportional representation in line with the Federal Senate. The first was the South Australian Legislative Council in 1973, which initially used a Party-list proportional representation, party list system (replaced with STV in 1982), followed by the Single Transferable Vote being introduced for the New South Wales Legislative Council in 1978, the Western Australian Legislative Council in 1987 and the Victorian Legislative Council in 2003. Nowadays, the upper house both federally and in most states is elected using
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 ...
while the lower house uses Instant-runoff voting in single member electorates. This is reversed in the state of Tasmania, where proportional representation is used for the Tasmania House of Assembly, lower house and single member electorates for the Tasmania Legislative Council, upper house.


Bosnia and Herzegovina

The Legislature of the Federation of Bosnia and Herzegovina, one of the two entities of
Bosnia and Herzegovina Bosnia and Herzegovina, sometimes known as Bosnia-Herzegovina and informally as Bosnia, is a country in Southeast Europe. Situated on the Balkans, Balkan Peninsula, it borders Serbia to the east, Montenegro to the southeast, and Croatia to th ...
, is a bicameral legislative body. The House of Representatives has 98 delegates, elected for four-year terms by proportional representation. The House of Peoples has 58 members, 17 delegates from among each of the constituent peoples of the Federation, and 7 delegates from among the other peoples. Republika Srpska, the other entity, has a unicameral parliament, known as the National Assembly (Republika Srpska), National Assembly, but there is also a Council of Peoples who is ''de facto'' the other legislative house.


India

Only 6 of the 36 states or Union Territories of India have bicameral legislatures, Andhra Pradesh, Bihar, Karnataka, Maharashtra, Telangana, and Uttar Pradesh, while the rest all have unicameral legislatures. The lower houses are called State legislative assemblies of India, Legislative Assemblies, and their members are elected by universal adult suffrage from single-member constituencies in state elections, which are normally held every five years called Vidhana Sabha. In the six states with bicameral legislatures, the upper house is called the State Legislative Council (India), Legislative Council (''Vidhan Parishad'') or Vidhana Parishat, one-third of whose members are elected every two years. Members of the Legislative Council are elected in various ways: * One-third are elected by the members of local bodies in the state such as Municipal governance in India, municipalities, Gram panchayat, ''gram panchayats'', Panchayat samiti, block development councils and District Councils of India, district councils. * One-third are elected by the members of the state's State Legislative Assembly (India), Legislative Assembly from amongst persons who are not members of the State Legislative Assembly. * One-sixth are nominated by the Governor (India), governor of the state from amongst persons having knowledge or practical experience in fields such as literature, science, arts, the Cooperative, co-operative movement and Social work, social service. * One-twelfth are elected from special constituencies by persons who are college graduates of three years' standing residing in those constituencies. * One-twelfth are elected by persons engaged for at least three years in teaching in Education in India, educational institutions within the state not lower than secondary schools, including colleges and University, universities. From 1956 to 1958 the Andhra Pradesh Legislature was unicameral. In 1958, when the State Legislative Council was formed, it became bicameral until 1 June 1985 when it was abolished. This continued until March 2007 when the State Legislative Council was reestablished and elections were held for its seats. In Tamil Nadu, a resolution was passed on 14 May 1986 and the state's Legislative Council was dissolved on 1 November 1986. Again on 12 April 2010, a resolution was passed to reestablish the council, but was ultimately unsuccessful. Similarly, the states of Assam, Jammu and Kashmir (state), Jammu and Kashmir, Madhya Pradesh, Punjab, India, Punjab, and West Bengal have also dissolved the upper houses of their State Legislature (India), state legislatures.


United States

During the 1930s, the legislature of the State of Nebraska was reduced from bicameral to unicameral with the 43 members that once comprised that state's Senate. One of the arguments used to sell the idea at the time to Nebraska voters was that by adopting a unicameral system, the perceived evils of the "conference committee" process would be eliminated. A conference committee is appointed when the two chambers cannot agree on the same wording of a proposal, and consists of a small number of legislators from each chamber. This tends to place much power in the hands of only a small number of legislators. Whatever legislation, if any, the conference committee finalizes is presented in an unamendable "take-it-or-leave-it" manner by both chambers. During his term as governor of the State of Minnesota, Jesse Ventura proposed converting the Minnesotan legislature to a single chamber with
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 ...
, as a reform that he felt would solve many legislative difficulties and impinge upon legislative corruption. In his book on political issues, ''Do I Stand Alone?'', Ventura argued that bicameral legislatures for provincial and local areas were excessive and unnecessary, and discussed unicameralism as a reform that could address many legislative and budgetary problems for states.


Historical

The German federal state of Bavaria had a bicameral legislature from 1946 to 1999, when the Senate of Bavaria, Senate was abolished by a referendum amending the state's constitution. The other 15 states have used a unicameral system since their founding. In the Soviet Union, regional and local Soviet (council), Soviets were unicameral. After the adoption of the Constitution of Russia, 1993 Russian Constitution, bicameralism was introduced in some regions. Bicameral regional legislatures are still technically allowed by federal law but this clause is dormant now. The last region to switch from bicameralism to unicameralism was Sverdlovsk Oblast in 2012. Four Federative units of Brazil, Brazilian states (Bahia, Ceará, Pernambuco, and São Paulo (state), São Paulo) had bicameral legislatures that were abolished when Getúlio Vargas came to power after the Brazilian Revolution of 1930, Revolution of 1930.


Reform


Arab political reform

A 2005 report on democratic reform in the Arab world by the U.S. Council on Foreign Relations co-sponsored by former Secretary of State Madeleine Albright urged Arab states to adopt bicameralism, with upper chambers appointed on a 'specialized basis'. The Council claimed that this would protect against the 'Tyranny of the majority', expressing concerns that without a system of checks and balances extremists would use the single chamber parliaments to restrict the rights of minority group, minority groups. In 2002, Bahrain adopted a bicameral system with an elected lower chamber and an appointed upper house. This led to a boycott of parliamentary elections that year by the Al Wefaq party, who said that the government would use the upper house to veto their plans. Many secular critics of bicameralism were won around to its benefits in 2005, after many MPs in the lower house voted for the introduction of so-called Islamic religious police, morality police.


Romania

A 2009 Romanian parliamentary reform referendum, referendum on introducing a unicameral Parliament instead of the current bicameral Parliament of Romania, Parliament was held in Romania on 22 November 2009. The turnout rate was 50.95%, with 77.78% of "Yes" votes for a unicameral Parliament. This referendum had a consultative role, thus requiring a parliamentary initiative and another referendum to ratify the new proposed changes.


Ivory Coast

A 2016 Ivorian constitutional referendum, referendum on a new Constitution of Ivory Coast#2016 Constitution (proposed), constitution was held on 30 October 2016. The constitution draft would create a bicameral Parliament of Ivory Coast, Parliament instead of the current unicameral. The Senate (Ivory Coast), Senate is expected to represent the interests of territorial collectivities and Ivoirians living abroad. Two thirds of the Senate is to be elected at the same time as the general election. The remaining one third is appointed by the president elect.


Examples


Current


Federal


Unitary


Territorial


State parliaments with limited recognition


Historical Bicameral Parliament


See also

* Federalism * List of abolished upper houses * Tricameralism * Unicameralism


References


Further reading

*


External links


''Noncontemporaneous Lawmaking: Can the 110th Senate Enact a Bill Passed by the 109th House?''
16 Cornell J.L. & Pub. Pol'y 331 (2007).
Against Mix-and-Match Lawmaking
Aaron-Andrew P. Bruhl, ''Against Mix-and-Match Lawmaking]'', 16 Cornell J.L. & Pub. Pol'y 349 (2007).
''Defending the (Not So) Indefensible: A Reply to Professor Aaron-Andrew P. Bruhl''
16 Cornell J.L. & Pub. Pol'y 363 (2007). {{Authority control Bicameral legislatures, * Forms of government Administrative theory