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Max Planck Encyclopedia of Public International Law [MPEPIL]


Isabel Feichtner

From: Oxford Public International Law (http://opil.ouplaw.com). (c) Oxford University Press, 2023. All Rights Reserved.date: 19 June 2024

General principles of international law — Soft law — EC Law, relationship with international law — Treaties, application — Treaties, interpretation — Subsidiarity — EC Law

Published under the auspices of the Max Planck Institute for Comparative Public Law and International Law under the direction of Professor Anne Peters (2021–) and Professor Rüdiger Wolfrum (2004–2020). 

1 In legal and political discourses subsidiarity most commonly refers to a principle which guides the allocation and exercise of public authority in systems of multi-level governance (see also International Governance). The subsidiarity principle expresses a preference for the allocation and exercise of governmental functions at the lowest level of governance.2 The origins of subsidiarity are often traced back to Aristotle, Thomas Aquinas, or Althusius. As a structural principle to guide the allocation and exercise of competences at different levels of a polity,...
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