Democracy: a system of government by the whole population or all the eligible members of a state, typically through elected representatives."capitalism and democracy are ascendant in the third world". The US uses the democracy system.
Direct: is a form of democracy in which people decide (e.g. vote on, form consensus on) policy initiatives directly. Practiced in Switzerland.
Representative: is a variety of democracy founded on the principle of elected officials representing a group of people, as opposed to direct democracy. This is Practiced in Singapore.
Autocracy: a system of government in which a supreme power is concentrated in the hands of one person, whose decisions are subject to neither external legal restraints nor regularized mechanisms of popular control (except perhaps for the implicit threat of coup d'état or mass insurrection). It is practiced in the Ukraine.
Monarchy: one person leads (kings and queens). It is practiced in England.
Absolute Monarchy: a monarchical form of government in which the monarch has absolute power among his or her people. An absolute monarch wields unrestricted political power over the sovereign state and its people. Qatar practices this type of government.
Constitutional Monarchy: a form of government in which a king or queen acts as Head of State. The ability to make and pass legislation resides with an elected Parliament, not with the Monarch. Norway practices this form of government.
Dictatorship: Government by a dictator. This is practiced in North Korea.
Oligarchy: a small group of people having control of a country, organization, or institution. This is practiced in Russia.
Anarchy: a state of disorder due to absence or nonrecognition of authority. The UK practices this.
Communism: a political theory derived from Karl Marx, advocating class war and leading to a society in which all property is publicly owned and each person works and is paid according to their abilities and needs. Practiced in China.