 Buchanan (2002) also argues that legitimacy is concerned with the justification of coercive power. Buchanan points out that this makes legitimacy a more fundamental normative concept than authority. Like Hampton, he advocates a moralized interpretation of legitimacy. According to him, “an entity has political legitimacy if and only if it is morally justified in wielding political power” (2002: 689). Political authority, in his approach, obtains if an entity is legitimate in this sense and if some further conditions, relating to political obligation, are met (2002: 691). Stilz (2009) offers a coercion-centered account of state legitimacy that draws on both Kant and Rousseau.