Federalism: Power is divided between central govt and local govts. In US, Constitution above both federal and state govts...Also Australia, Mexico, Canada, Switzerland, Germany.
Unitary: Central government with most power, distributes it to states as it sees fit (France). Great Britain: Parliament holds all the power. Local govts exist only to take some duties from Parliament. Not same as dictatorship, because powers of govt are limited, although centralized...
Confederal: Unitary upside down, states with most power, central government with little power; all power of the central government is whatever is given to it by the states. Think Civil War and Articles of Confederation. Loose alliance of independent states with a central government that only has the power that the states give to it. Now, the Commonwealth of Independent States a viable example. 1st EditionLuis Ricardo Fraga825 explanations
1st EditionDonald A. Ritchie, Richard C. Remy1,148 explanations
1st EditionDaniel M. Shea602 explanations
16th EditionGeorge C. Edwards III, Martin P. Wattenberg, Robert L. Lineberry269 explanations