Julian Arato

Associate in Law

Office: Jerome Greene Hall, Room 510A
New York NY 10027
Tel: (212) 854-1824
Email: jarato@law.columbia.edu
  • LL.M. in International Legal Studies, New York University School of Law, 2012
  • J.D., cum laude, New York University School of Law, 2011
  • M.Phil in Political Thought & Intellectual History, Cambridge University, King’s College, 2008
  • B.A., magna cum laude, Columbia University, 2007


Julian Arato’s scholarship draws on his background in law, history, and political theory, bridging public and private international law. His current work-in-progress examines the lawmaking capacity and autonomy of the multinational corporation under international law, particularly in the context of treaty regimes for the protection of international investment and human rights. His recent publications have focused on international investment law and international arbitration, public international law, constitutional theory, and the law of international organizations. He currently serves as Co-Chair of the International Organizations Interest Group of the American Society of International Law.

Before coming to Columbia, Julian practiced as an associate at Freshfields Bruckhaus Deringer, in the international arbitration group, acting on behalf of multinational companies, sovereign states and international organizations. His practice focused especially on natural resource extraction, construction, and the oil and gas sector.


Corporations as Lawmakers, 56 Harv. Int'l L.J. ___ (forthcoming, 2015)

The Margin of Appreciation in International Investment Law, 54 Va. J. Int'l L. 545 (2014)

Treaty Interpretation and Constitutional Transformation: Informal Change in International Organizations, 38 Yale J. Int’l L. 289 (2013)

Constitutionality and Constitutionalism Beyond the State: Two Perspectives on the Material Constitution of the United Nations, 10 Int’l J. Const. L. (I•Con) 627 (2012) [peer review]

Constitutional Transformation in the ECtHR: Strasbourg’s Expansive Recourse to External Rules of International Law, 37 Brook. J. Int’l L. 348 (2012)

Subsequent Practice and Evolutive Interpretation: Techniques of Treaty Interpretation over Time and Their Diverse Consequences, 9 Law & Prac. Int’l Cts. & Tribs. 443 (2010) [peer review]

Selected Book Chapters

Deference to the Executive, in Interpretation of International Law by Domestic Courts: Converging Approaches?, Georg Nolte & Helmut Aust, eds. (Oxford University Press, forthcoming 2015)

Accounting for Difference in Treaty Interpretation over Time, in Interpretation in International Law, Andrea Bianchi, D.C. Peat, & Matthew Windsor, eds. (Oxford University Press, 2015)