Power is more durable when people believe it is rightful. Legitimacy is that perceived rightfulness—the acceptance by the governed that the rulers and the rules deserve obedience.

Legitimacy can rest on tradition, on the personal appeal of a leader, or on legal and democratic procedures. Performance also matters: governments that deliver security and prosperity reinforce their claim to rule. When legitimacy erodes, regimes rely more heavily on coercion or co-optation, which are costlier and less stable.

Crises of legitimacy arise from corruption, electoral fraud, economic failure, or cultural alienation. Restoring legitimacy usually requires both institutional reform and tangible improvements in people’s lives. International recognition can support domestic legitimacy but cannot substitute for it. Political scientists treat legitimacy as a central variable explaining why some orders endure and others collapse.

• Accepted rightfulness of rule
• Reduces reliance on pure coercion
• Sources include procedure, tradition, and performance
• Erosion leads to instability