Name Constitutional form Head of state Basis of executive legitimacy Afghanistan Republic Executive Presidency is independent of legislature Albania Republic Ceremonial Ministry is subject to parliamentary confidence Algeria Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Andorra Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Angola Republic Executive Presidency is independent of legislature Antigua and Barbuda Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Argentina Republic Executive Presidency is independent of legislature Armenia Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Australia Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Austria Republic Ceremonial Ministry is subject to parliamentary confidence Azerbaijan Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Bahamas, The Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Bahrain Constitutional monarchy Executive Monarch personally exercises power in concert with other institutions Bangladesh Republic Ceremonial Ministry is subject to parliamentary confidence Barbados Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Belarus Republic Executive Presidency is independent of legislature Belgium Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Belize Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Benin Republic Executive Presidency is independent of legislature Bhutan Constitutional monarchy Executive Monarch personally exercises power in concert with other institutions Bolivia Republic Executive Presidency is independent of legislature Bosnia and Herzegovina Republic Ceremonial Ministry is subject to parliamentary confidence Botswana Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence Brazil Republic Executive Presidency is independent of legislature Brunei Absolute monarchy Executive All authority vested in absolute monarch Bulgaria Republic Ceremonial Ministry is subject to parliamentary confidence Burkina Faso Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Burundi Republic Executive Presidency is independent of legislature Cambodia Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Cameroon Republic Executive Presidency is independent of legislature Canada Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Cape Verde Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Central African Republic Republic Executive Presidency is independent of legislature Chad Republic Executive Presidency is independent of legislature Chile Republic Executive Presidency is independent of legislature China, People 's Republic of Republic Executive Power constitutionally linked to a single political movement Colombia Republic Executive Presidency is independent of legislature Comoros Republic Executive Presidency is independent of legislature Congo, Democratic Republic of the Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Congo Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Costa Rica Republic Executive Presidency is independent of legislature Côte d'Ivoire Republic Executive Presidency is independent of legislature Croatia Republic Ceremonial Ministry is subject to parliamentary confidence Cuba Republic Executive Power constitutionally linked to a single political movement Cyprus Republic Executive Presidency is independent of legislature Czech Republic Republic Ceremonial Ministry is subject to parliamentary confidence Denmark Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Djibouti Republic Executive Presidency is independent of legislature Dominica Republic Ceremonial Ministry is subject to parliamentary confidence Dominican Republic Republic Executive Presidency is independent of legislature East Timor Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Ecuador Republic Executive Presidency is independent of legislature Egypt Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence El Salvador Republic Executive Presidency is independent of legislature Equatorial Guinea Republic Executive Presidency is independent of legislature Eritrea Republic Executive Power constitutionally linked to a single political movement Estonia Republic Ceremonial Ministry is subject to parliamentary confidence Ethiopia Republic Ceremonial Ministry is subject to parliamentary confidence Federated States of Micronesia Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence Fiji Republic Ceremonial Ministry is subject to parliamentary confidence Finland Republic Ceremonial Ministry is subject to parliamentary confidence France Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Gabon Republic Executive Presidency is independent of legislature Gambia, The Republic Executive Presidency is independent of legislature Georgia Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Germany Republic Ceremonial Ministry is subject to parliamentary confidence Ghana Republic Executive Presidency is independent of legislature Greece Republic Ceremonial Ministry is subject to parliamentary confidence Grenada Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Guatemala Republic Executive Presidency is independent of legislature Guinea Republic Executive Presidency is independent of legislature Guinea - Bissau Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Guyana Republic Executive Presidency is independent of legislature Haiti Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Honduras Republic Executive Presidency is independent of legislature Hungary Republic Ceremonial Ministry is subject to parliamentary confidence Iceland Republic Ceremonial Ministry is subject to parliamentary confidence India Republic Ceremonial Ministry is subject to parliamentary confidence Indonesia Republic Executive Presidency is independent of legislature Iran Republic Executive Presidency is independent of legislature Iraq Republic Ceremonial Ministry is subject to parliamentary confidence Ireland Republic Ceremonial Ministry is subject to parliamentary confidence Israel Republic Ceremonial Ministry is subject to parliamentary confidence Italy Republic Ceremonial Ministry is subject to parliamentary confidence Jamaica Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Japan Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Jordan Constitutional monarchy Executive Monarch personally exercises power in concert with other institutions Kazakhstan Republic Executive Presidency is independent of legislature Kenya Republic Executive Presidency is independent of legislature Kiribati Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence Korea, North Republic Executive Power constitutionally linked to a single political movement Korea, South Republic Executive Presidency is independent of legislature Kuwait Constitutional monarchy Executive Monarch personally exercises power in concert with other institutions Kyrgyzstan Republic Ceremonial Ministry is subject to parliamentary confidence Laos Republic Executive Power constitutionally linked to a single political movement Latvia Republic Ceremonial Ministry is subject to parliamentary confidence Lebanon Republic Ceremonial Ministry is subject to parliamentary confidence Lesotho Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Liberia Republic Executive Presidency is independent of legislature Libya n / a n / a No constitutionally - defined basis to current regime Liechtenstein Constitutional monarchy Executive Monarch personally exercises power in concert with other institutions Lithuania Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Luxembourg Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Macedonia Republic Ceremonial Ministry is subject to parliamentary confidence Madagascar Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Malawi Republic Executive Presidency is independent of legislature Malaysia Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Maldives Republic Executive Presidency is independent of legislature Mali Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Malta Republic Ceremonial Ministry is subject to parliamentary confidence Marshall Islands Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence Mauritania Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Mauritius Republic Ceremonial Ministry is subject to parliamentary confidence Mexico Republic Executive Presidency is independent of legislature Moldova Republic Ceremonial Ministry is subject to parliamentary confidence Monaco Constitutional monarchy Executive Monarch personally exercises power in concert with other institutions Mongolia Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Montenegro Republic Ceremonial Ministry is subject to parliamentary confidence Morocco Constitutional monarchy Executive Monarch personally exercises power in concert with other institutions Mozambique Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Myanmar Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence Namibia Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Nauru Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence Nepal Republic Ceremonial Ministry is subject to parliamentary confidence Netherlands Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence New Zealand Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Nicaragua Republic Executive Presidency is independent of legislature Niger Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Nigeria Republic Executive Presidency is independent of legislature Norway Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Oman Absolute monarchy Executive All authority vested in absolute monarch Pakistan Republic Ceremonial Ministry is subject to parliamentary confidence Palau Republic Executive Presidency is independent of legislature Palestine Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Panama Republic Executive Presidency is independent of legislature Papua New Guinea Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Paraguay Republic Executive Presidency is independent of legislature Peru Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Philippines Republic Executive Presidency is independent of legislature Poland Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Portugal Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Qatar Absolute monarchy Executive All authority vested in absolute monarch Romania Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Russia Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Rwanda Republic Executive Presidency is independent of legislature Saint Kitts and Nevis Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Saint Lucia Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Saint Vincent and the Grenadines Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Samoa Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence San Marino Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence São Tomé and Príncipe Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Saudi Arabia Absolute monarchy Executive All authority vested in absolute monarch Senegal Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Serbia Republic Ceremonial Ministry is subject to parliamentary confidence Seychelles Republic Executive Presidency is independent of legislature Sierra Leone Republic Executive Presidency is independent of legislature Singapore Republic Ceremonial Ministry is subject to parliamentary confidence Slovakia Republic Ceremonial Ministry is subject to parliamentary confidence Slovenia Republic Ceremonial Ministry is subject to parliamentary confidence Solomon Islands Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Somalia Republic Ceremonial Ministry is subject to parliamentary confidence South Africa Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence South Sudan Republic Executive Presidency is independent of legislature Spain Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Sri Lanka Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Sudan Republic Executive Presidency is independent of legislature Suriname Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence Swaziland Absolute monarchy Executive All authority vested in absolute monarch Sweden Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Switzerland Republic Executive Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence Syria Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Tajikistan Republic Executive Presidency is independent of legislature Tanzania Republic Executive Presidency is independent of legislature Thailand n / a n / a No constitutionally - defined basis to current regime Togo Republic Executive Presidency is independent of legislature Tonga Constitutional monarchy Executive Monarch personally exercises power in concert with other institutions Trinidad and Tobago Republic Ceremonial Ministry is subject to parliamentary confidence Tunisia Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence Turkey Republic Ceremonial Ministry is subject to parliamentary confidence Turkmenistan Republic Executive Presidency is independent of legislature Tuvalu Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence Uganda Republic Executive Presidency is independent of legislature Ukraine Republic Executive Presidency independent of legislature; ministry is subject to parliamentary confidence United Arab Emirates Absolute monarchy Executive All authority vested in absolute monarch United Kingdom Constitutional monarchy Ceremonial Ministry is subject to parliamentary confidence United States Republic Executive Presidency is independent of legislature Uruguay Republic Executive Presidency is independent of legislature Uzbekistan Republic Executive Presidency is independent of legislature Vanuatu Republic Ceremonial Ministry is subject to parliamentary confidence Vatican City Absolute monarchy Executive All authority vested in absolute monarch Venezuela Republic Executive Presidency is independent of legislature Vietnam Republic Executive Power constitutionally linked to a single political movement Yemen n / a n / a No constitutionally - defined basis to current regime Zambia Republic Executive Presidency is independent of legislature Zimbabwe Republic Executive Presidency is independent of legislature
what type of government is the us system
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