Autocracy

An autocracy is 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).

Comparison with other forms of government

Both totalitarianism and military dictatorship are often identified with, but need not be, an autocracy. Totalitarianism is a system where the state strives to control every aspect of life and civil society. It can be headed by a supreme dictator, making it autocratic, but it can also have a collective leadership such as a commune or political party.

In an analysis of militarized disputes between two states, if one of the states involved was an autocracy the chance of violence occurring doubled.

Maintenance

Because autocrats need a power structure to rule, it can be difficult to draw a clear line between historical autocracies and oligarchies. Most historical autocrats depended on their nobles, the military, the priesthood or other elite groups. Some autocracies are rationalized by assertion of divine right.