Unicameralism (from uni- "one" + Latin camera "chamber") is a type of legislature consisting of one house or assembly that legislates and votes as one.[1] Unicameralism has become an increasingly common type of legislature, making up nearly 60% of all national legislatures[2] and an even greater share of subnational legislatures.
Sometimes, as in New Zealand and Denmark, unicameralism comes about through the abolition of one of two bicameral chambers, or, as in Sweden, through the merger of the two chambers into a single one, while in others a second chamber has never existed from the beginning.
Rationale for unicameralism and criticism
The principal advantage of a unicameral system is more efficient lawmaking, as the legislative process is simpler and there is no possibility of deadlock between two chambers. Proponents of unicameralism have also argued that it reduces costs, even if the number of legislators stays the same, since there are fewer institutions to maintain and support financially. More popular among modern-day democratic countries, unicameral, proportional legislatures are widely seen as both more democratic and effective.[3]
Proponents of bicameral legislatures say that having two legislative chambers offers an additional restraint on the majority, though critics note that there are other ways to restrain majorities, such as through non-partisan courts and a robust constitution.[4]
List of unicameral legislatures
Countries with a bicameral legislature.
Countries with a unicameral legislature.
Countries with a unicameral legislature and an advisory body.
The Bundestag is technically the unicameral parliament of Germany, since the Bundesrat is not defined as a chamber of the legislature, but a completely separate legislative institution according to the Basic Law (German constitution).
The original constitution is partially superseded by the additional articles only on Taiwan which replaced the tricameral parliament into a unicameral one. A sunset clause in the additional articles will terminate them in the event of a hypothetical resumption of ROC rule in Mainland China.
National Assembly of Kenya was the country's unicameral legislature before becoming the lower house of the bicameral Parliament of Kenya in 2013.
National Assembly of Ivory Coast was the country's unicameral legislature before becoming the lower house of the bicameral Parliament of Ivory Coast in 2016.
The ongoing process of amending or revising the current Constitution and form of government is popularly known as Charter Change. A shift to a unicameral parliament was included in the proposals of the constitutional commission created by President Gloria Macapagal Arroyo.[7] Unlike in the United States, senators in the Senate of the Philippines are elected not per district and state but nationally; the Philippines is a unitary state.[8] The Philippine government's decision-making process, relative to the United States, is more rigid, highly centralised, much slower and susceptible to political gridlock. As a result, the trend for unicameralism as well as other political system reforms are more contentious in the Philippines.[9]
The Nebraska Legislature (also called the Unicameral) is the supreme legislative body of the state of Nebraska and the only unicameral state legislature in the United States. Its members are called "senators", as it was originally the upper house of a bicameral legislature before the Nebraska House of Representatives dissolved in 1937. The legislature is also notable for being nonpartisan and officially recognizes no party affiliation, making Nebraska unique among U.S. states. With 49 members, it is also the smallest legislature of any U.S. state.
A 2018 study found that efforts to adopt unicameralism in Ohio and Missouri failed due to rural opposition.[10] There was a fear in rural communities that unicameralism would diminish their influence in state government.[10]
Local government legislatures of counties, cities, or other political subdivisions within states are usually unicameral and have limited lawmaking powers compared to their state and federal counterparts.
Some of the 13 colonies which became independent, such as Pennsylvania, New Jersey and New Hampshire had initially introduced strong unicameral legislature and (relatively) less powerful governors with no veto power. Pennsylvania's constitution lasted only 14 years. In 1790, conservatives gained power in the state legislature, called a new constitutional convention, and rewrote the constitution. The new constitution substantially reduced universal male suffrage, gave the governor veto power and patronage appointment authority, and added an upper house with substantial wealth qualifications to the unicameral legislature. Thomas Paine called it a constitution unworthy of America.[citation needed]
In 1944, Missouri held a vote on changing the General Assembly to a unicameral one, which was narrowly rejected by the voters 52.42-47.58. Only the city of St. Louis and the St. Louis County voted in favor, whilst Jackson County (containing the bulk of Kansas City) narrowly voted against, and all other counties voted against the change to unicameralism.[11][12]
In 1970, North Dakota voters voted to call a constitutional convention. In 1972, a change to a unicameral legislature was approved by 69.36-30.64,[13] however, since the voters rejected the new constitution at the same referendum, it never took effect.[14]
The U.S. territory of Puerto Rico held a non-binding referendum in 2005. Voters approved changing its Legislative Assembly to a unicameral body by 456,267 votes in favor (83.7%) versus 88,720 against (16.3%).[16] If both the territory's House of Representatives and Senate had approved by a 2⁄3 vote the specific amendments to the Puerto Rico Constitution that are required for the change to a unicameral legislature, another referendum would have been held in the territory to approve such amendments. If those constitutional changes had been approved, Puerto Rico could have switched to a unicameral legislature as early as 2015.
On June 9, 2009, the Maine House of Representatives voted to form a unicameral legislature, but the measure did not pass the Senate.[17]
The United States as a whole was subject to a unicameral Congress during the years 1781–1788, when the Articles of Confederation were in effect. The Confederate States of America, pursuant to its Provisional Constitution, in effect from February 8, 1861, to February 22, 1862, was governed by a unicameral Congress.[19]
The Sejm, officially known as the Sejm of the Republic of Poland, is the lower house of the bicameral parliament of Poland.
A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate, so-called as an assembly of the senior and therefore considered wiser and more experienced members of the society or ruling class. However the Roman Senate was not the ancestor or predecessor of modern parliamentarism in any sense, because the Roman senate was not a de jure legislative body.
In the United States, the state legislature is the legislative branch in each of the 50 U.S. states.
A member of parliament (MP) is the representative in parliament of the people who live in their electoral district. In many countries with bicameral parliaments, this term refers only to members of the lower house since upper house members often have a different title. The terms congressman/congresswoman or deputy are equivalent terms used in other jurisdictions. The term parliamentarian is also sometimes used for members of parliament, but this may also be used to refer to unelected government officials with specific roles in a parliament and other expert advisers on parliamentary procedure such as the Senate parliamentarian in the United States. The term is also used to the characteristic of performing the duties of a member of a legislature, for example: "The two party leaders often disagreed on issues, but both were excellent parliamentarians and cooperated to get many good things done."
Bicameralism is a type of legislature that is divided into two separate assemblies, chambers, or houses, known as a bicameral legislature. Bicameralism is distinguished from unicameralism, in which all members deliberate and vote as a single group. As of 2022, roughly 40% of the world's national legislatures are bicameral, while unicameralism represents 60% nationally and much more at the subnational level.
A constitutional amendment is a modification of the constitution of a polity, organization or other type of entity. Amendments are often interwoven into the relevant sections of an existing constitution, directly altering the text. Conversely, they can be appended to the constitution as supplemental additions, thus changing the frame of government without altering the existing text of the document.
The Congress of the Philippines is the legislature of the national government of the Philippines. It is bicameral, composed of a lower body, the House of Representatives, although colloquially the term "Congress" commonly refers to just the latter, and an upper body, the Senate. The House of Representatives meets in the Batasang Pambansa in Quezon City while the Senate meets in the GSIS Building in Pasay.
The chamber of deputies is the lower house in many bicameral legislatures and the sole house in some unicameral legislatures.
The speaker of a deliberative assembly, especially a legislative body, is its presiding officer, or the chair. The title was first used in 1377 in England.
An upper house is one of two chambers of a 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 power than the lower house. A legislature composed of only one house is described as unicameral.
A state government is the government that controls a subdivision of a country in a federal form of government, which shares political power with the federal or national government. A state government may have some level of political autonomy, or be subject to the direct control of the federal government. This relationship may be defined by a constitution.
The Legislative Assembly of Puerto Rico is the territorial legislature of the Commonwealth of Puerto Rico, responsible for the legislative branch of the government of Puerto Rico. The Assembly is a bicameral legislature consisting of an upper house, the Senate normally composed of 27 senators, and the lower house, the House of Representatives normally consisting of 51 representatives. Eleven members of each house are elected at-large rather than from a specific legislative district with all members being elected for a four-year term without term limits.
Elections in the Philippines are of several types. The president, vice-president, and the senators are elected for a six-year term, while the members of the House of Representatives, governors, vice-governors, members of the Sangguniang Panlalawigan, mayors, vice-mayors, members of the Sangguniang Panlungsod/members of the Sangguniang Bayan, barangay officials, and the members of the Sangguniang Kabataan are elected to serve for a three-year term.
The government of the Philippines has three interdependent branches: the legislative, executive, and judicial branches. The Philippines is governed as a unitary state under a presidential representative and democratic constitutional republic in which the president functions as both the head of state and the head of government of the country within a pluriform multi-party system.
The legislative districts of the Philippines are the divisions of the Philippines' provinces and cities for representation in the various legislative bodies. Congressional districts are for House of Representatives, while there are districts for Sangguniang Panlalawigan, and some Sangguniang Panlungsod. For purposes of representation, the Senate, most Sangguniang Panlungsod, Sangguniang Bayan, Sangguniang Barangay and Sangguniang Kabataan are all elected at-large, although there were districts for the Senate from 1916 to 1935.
In contrast to unicameralism, and bicameralism, multicameralism is the condition in which a legislature is divided into more than two deliberative assemblies, which are commonly called "chambers" or "houses". This usually includes tricameralism with three chambers, but can also describe a system with any amount more. The word "multicameral" can also relate in other ways to its literal meaning of "many chambered" with use in science or biology.
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 called a "Senate". In some countries, the House of Representatives is the sole chamber of a unicameral legislature.
↑ Reuter, Konrad (2003). "Zweite Kammer?". Bundesrat und Bundesstaat: Der Bundesrat der Bundesrepublik Deutschland(PDF) (in German) (12th ed.). Berlin: Direktor des Bundesrates. p. 50. ISBN 3-923706-22-7. Archived from the original (PDF) on 2007-06-28. Retrieved 2007-01-04. Im Ausland wird ein solches parlamentarisches System im Allgemeinen als Zweikammer- System bezeichnet. Für Bundestag und Bundesrat ist dagegen eine gemeinsame Bezeichnung nicht allgemein üblich, und es ist sogar umstritten, ob der Bundesrat eine Zweite Kammer ist. (English: Abroad, such a parliamentary system is in general called a bicameral one. For Bundestag and Bundesrat such a common designation is not usual and it is even contentious whether the Bundesrat is a second chamber at all.)
↑ Classifications of Germany as a country with a bicameral legislature can be controversial.[5]
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