Legitimacy (political Science) is whether or not people accept the validity of a Law or ruling or the validity of a governing Regime . This concept has also been applied to other kinds of Authority , such as that of an employer hiring workers. In the Marxian tradition, issues concerning the legitimacy of entire political-economic systems (such as Capitalism ) are discussed.
Legitimacy in government is garnered by when the citizens of said country authorize and submit themselves to the law in return for protections from the state.