We articulate a global public standard for the normative legitimacy of global governance institutions. This standard can provide the basis for principled criticism of global governance institutions and guide reform efforts in circumstances in which people disagree deeply about the demands of global justice and the role that global governance institutions should play in meeting them. We stake out a middle ground between an increasingly discredited conception of legitimacy that conflates legitimacy with international legality understood as state consent, on the one hand, and the unrealistic view that legitimacy for these institutions requires the same democratic standards that are now applied to states, on the other.
Buchanan et al. (2006) studied this question.