Head of stateA head of state (or chief of state) is the public persona who officially embodies a state in its unity and legitimacy. Depending on the country's form of government and separation of powers, the head of state may be a ceremonial figurehead or concurrently the head of government and more (such as the president of the United States, who is also commander-in-chief of the United States Armed Forces). In a parliamentary system, such as the United Kingdom or India, the head of state usually has mostly ceremonial powers, with a separate head of government.
FederalismFederalism is a mode of government that combines a general government (the central or "federal" government) with regional governments (provincial, state, cantonal, territorial, or other sub-unit governments) in a single political system, dividing the powers between the two. Federalism in the modern era was first adopted in the unions of states during the Old Swiss Confederacy. Federalism differs from confederalism, in which the general level of government is subordinate to the regional level, and from devolution within a unitary state, in which the regional level of government is subordinate to the general level.
Westminster systemThe Westminster system or Westminster model is a type of parliamentary government that incorporates a series of procedures for operating a legislature, first developed in England. Key aspects of the system include an executive branch made up of members of the legislature, and that is responsible to the legislature; the presence of parliamentary opposition parties; and a ceremonial head of state who is different from the head of government. The term comes from the Palace of Westminster, the current seat of the Parliament of the United Kingdom.
Separation of powersSeparation of powers refers to the division of a state's government into "branches", each with separate, independent powers and responsibilities, so that the powers of one branch are not in conflict with those of the other branches. The typical division into three branches of government, sometimes called the trias politica model, includes a legislature, an executive, and a judiciary. It can be contrasted with the fusion of powers in parliamentary and semi-presidential systems where there can be overlap in membership and functions between different branches, especially the executive and legislative.
UnicameralismUnicameralism (from uni- "one" + Latin camera "chamber") is a type of legislature, which consists of one house or assembly, that legislates and votes as one. Unicameralism has become an increasingly common type of legislature, making up nearly 60% of all national legislatures 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.
House of Commons of the United KingdomThe House of Commons is the lower house of the Parliament of the United Kingdom. Like the upper house, the House of Lords, it meets in the Palace of Westminster in London, England. The House of Commons is an elected body consisting of 650 members known as members of Parliament (MPs). MPs are elected to represent constituencies by the first-past-the-post system and hold their seats until Parliament is dissolved. The House of Commons of England began to evolve in the 13th and 14th centuries.
Head of governmentThe head of government is the highest or the second-highest official in the executive branch of a sovereign state, a federated state, or a self-governing colony, autonomous region, or other government who often presides over a cabinet, a group of ministers or secretaries who lead executive departments. In diplomacy, "head of government" is differentiated from "head of state" although in some countries, for example the United States, they are the same person.
Upper houseAn 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 (and which therefore has neither an upper house nor a lower house) is described as unicameral. An upper house is usually different from the lower house in at least one of the following respects (though they vary among jurisdictions): Powers: In a parliamentary system, it often has much less power than the lower house.
Representative democracyRepresentative democracy, also known as indirect democracy, is a type of democracy where elected people represent a group of people, in contrast to direct democracy. Nearly all modern Western-style democracies function as some type of representative democracy: for example, the United Kingdom (a unitary parliamentary constitutional monarchy), Germany (a federal parliamentary republic), France (a unitary semi-presidential republic), and the United States (a federal presidential republic).
Party-list proportional representationParty-list proportional representation (list-PR) is a subset of proportional representation electoral systems in which multiple candidates are elected (e.g., elections to parliament) through their position on an electoral list. They can also be used as part of mixed-member electoral systems. In these systems, parties make lists of candidates to be elected, and seats are distributed by elections authorities to each party in proportion to the number of votes the party receives.
