Julian Arato is a professor of law at Michigan Law. His scholarly expertise spans the areas of public international law, international economic law, and private law.

Professor Arato has published numerous articles on the law of treaties, international investment law and arbitration, international trade, contracts, corporations, and private law theory. His article “The Private Law Critique of International Investment Law'' won the 2019 Francis Deák Prize for best article by a younger author published in the American Journal of International Law. He also co-edits an open-access casebook on international trade law, The Law of the World Trade Organization (with J.H.H. Weiler, S. Cho, & I Feichtner, 2016–2017 edn.).

Professor Arato serves as a member of the board of editors of the American Journal of International Law, where he also edits the international decisions section. He is active in the governance of the American Society of International Law (ASIL), having recently served on the executive council and as co-chair of the international economic law interest group. He also serves as co-chair of the Academic Forum on Investor-State Dispute Settlement and as a member of the Institute for Transnational Arbitration Academic Council. Since 2018, Professor Arato has served as an observer delegate to the United Nations Commission on International Trade Law Working Group III (ISDS Reform). 

Before joining the Michigan Law School faculty, Professor Arato was a professor of law and associate dean of faculty research and scholarship at Brooklyn Law School and before that an associate-in-law at Columbia University Law School. He previously worked as an associate in the international arbitration group at Freshfields Bruckhaus Deringer, where his practice focused on international investment disputes and international commercial arbitration.