Presidential system
Form of government / From Wikipedia, the free encyclopedia
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A presidential system, or single executive system, is a form of government in which a head of government, typically with the title of president, leads an executive branch that is separate from the legislative branch in systems that use separation of powers. This head of government is in most cases also the head of state. In a presidential system, the head of government is directly or indirectly elected by a group of citizens and is not responsible to the legislature, and the legislature cannot dismiss the president except in extraordinary cases. A presidential system contrasts with a parliamentary system, where the head of government comes to power by gaining the confidence of an elected legislature.
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1 This map was compiled according to the Wikipedia list of countries by system of government. See there for sources.Full presidential republics2 Semi-presidential republics2 Republics with an executive president elected by or nominated by the legislature that may or may not be subject to parliamentary confidence Parliamentary republics2 Parliamentary constitutional monarchies where royalty does not hold significant power Parliamentary constitutional monarchies which have a separate head of government but where royalty holds significant executive and/or legislative power Absolute monarchies One-party states Countries where constitutional provisions for government have been suspended (e.g. military juntas) Countries that do not fit any of the above systems (e.g. provisional governments/unclear political situations) Overseas possessions, colonies, and places without governments
2 This map presents only the de jure form of government, and not the de facto degree of democracy. Some countries which are de jure republics are de facto authoritarian regimes. For a measure of the degree of democracy in countries around the world, see the Democracy Index or V-Dem Democracy indices.
Not all presidential systems use the title of president. Likewise, the title is sometimes used by other systems. It originated from a time when such a person personally presided over the governing body, as with the President of the Continental Congress in the early United States, prior to the executive function being split into a separate branch of government. It may also be used by presidents in semi-presidential systems. Heads of state of parliamentary republics, largely ceremonial in most cases, are called presidents. Dictators or leaders of one-party states, whether popularly elected or not, are also often called presidents.
The presidential system is the dominant form of government in the mainland Americas, with 18 of its 22 sovereign states being presidential republics, the exceptions being Canada, Belize, Guyana and Suriname. It is also prevalent in Central and southern West Africa and in Central Asia. By contrast, there are very few presidential republics in Europe, with Belarus, Cyprus, and Turkey being the only examples.