Legitimacy through Subsidiarity? The Parliamentary Control of EU Policy-Making

This article explains the relationship between subsidiarity and legitimacy of policies designed at EU level. Through means of theoretically informed analysis this paper claims that if the principle of subsidiarity is respected and implemented throughout the policy process, EU policy-making can aspire to satisfy the condition of both input and output legitimacy. The empirical part of the paper shows how, through a subsidiarity control mechanism known as the Early Warning System, national parliaments can collectively fulfill representative and deliberative functions in EU policy-making. Conclusions about the changing dynamics in parliamentary modus operandi in the field of EU affairs lead to forming a set of recommendations for further research.