Substantive Legitimacy: The degree to which a political system or government is considered legitimate based on the perceived fairness, effectiveness, and desirability of its policies and outcomes, rather than just the processes by which decisions are made.
Democratic Legitimacy:The extent to which a political system or government is considered legitimate due to its adherence to democratic principles, such as free and fair elections, universal suffrage, and the protection of civil liberties.
Authoritarian Legitimacy: The degree to which a non-democratic political system or government is considered legitimate due to factors such as economic performance, nationalist appeals, or the perceived maintenance of social stability and order.