Global Faculty
The Global Faculty expand NYU Law's faculty by inviting leading law professors from around the world who teach regularly at NYU while retaining their affiliation with their home institutions. They specialize in diverse fields of law, not just international law, and are renowned scholars in their countries and areas of interest. Their courses provide an extraordinary opportunity for NYU students to learn from and interact with these eminent scholars and to gain a new perspective on important legal issues. Along with our Global Fellows and Hauser Global Scholars, the Global Faculty represent the heart of the Hauser Global Law School Program and a key element in the intellectual life of the Law School.
NYU School of Law's relationship with many global faculty is continuing and intimate over several years, rather than single one-semester or one-year arrangements. The global faculty are thereby integrated fully into the fabric of the Law School, both its academic programs and the collateral activities that largely define the institution.
Academic Year 2025-2026
Spring Semester
Martti Koskenniemi
Finland
mak11@nyu.edu
Martti Koskenniemi is Emeritus Professor of International Law at the University of Helsinki and Director of the Erik Castrén Institute of International Law and Human Rights. He was a member of the Finnish diplomatic service 1978-1994, Judge with the Administrative Tribunal of the Asian Development Bank (1997- 2002) member of the International Law Commission (UN) in 2002-2006.
He has worked with several UN agencies and bodies and pleaded with the International Court of Justice. He has held lengthier visiting professorships in, among other places, NYU, Columbia University, University of Cambridge, London School of Economics, Melbourne University and Universities of Brussels, Paris, Sao Paulo and Utrecht. He is a Fellow of the British Academy and a Member of the American Academy of Arts and Sciences. He has a doctorate h.c. from the Universities of Uppsala, Frankfurt and McGill. His main publications include From Apology to Utopia; The Structure of International Legal Argument (1989/2005), The Gentle Civilizer of Nations: The Rise and Fall of International Law 1870-1960 (2001) and The Politics of International Law (2011). His latest work on the (pre-)history of international law is To the Uttermost Parts of the Earth: Legal Imagination and International Power (2021).
Course:
The Law of "International Society": A Conceptual History
Michael Lang
ml10227@nyu.edu
Prof. Michael Lang is Head of the Institute for Austrian and International Tax Law of WU (Vienna University of Economics and Business) and Academic Director of both the LL.M. Program in International Tax Law and of the doctoral program in international business taxation (DIBT) of this university. He is President of the Austrian Branch of the International Fiscal Association (IFA). He has been a visiting professor at Georgetown University, New York University, Sorbonne, Bocconi, Peking University (PKU), University of New South Wales (Sydney), and other universities. He has specialized in particular in tax treaty law and in European tax law.
Courses:
EU Tax Law
Tax Treaties
Ioannis Lianos
United Kingdom, European Union (EU), Greece
il310@nyu.edu
Ioannis Lianos is Professor and Chair of Global Competition Law and Public Policy and the founding director of the Centre for Law, Economics and Society (CLES) at at the Faculty of Laws, University College London. He also teaches EU Competition Law at the College of Europe in Natolin. Since 2024, he has served as a member of the UK Competition Appeal Tribunal. From August 2019 to January 2024, he served as President of the Hellenic Competition Commission.
Professor Lianos has held several prominent international roles. He was elected to the Bureau of the OECD Competition Committee in 2021 and subsequently re-elected in both 2022 and 2023. He also served as a member of the EU High Level Group for the Digital Markets Act (DMA) and participated as part of the Greek delegation during negotiations for the DMA's adoption. Additionally, he chaired the Special Law Commission responsible for preparing Greece's New Competition Law Bill, which resulted in significant legislative reform in January 2022 through Law 4886/2022—a comprehensive update that introduced important legislative innovations. His scholarly work has significantly influenced legislative reforms across multiple jurisdictions worldwide. His "polycentric competition law model" is widely recognized as an alternative to the traditional "consumer welfare approach" in competition law. His groundbreaking research on ecosystems and complexity theory in competition law, combined with his advocacy for integrating sustainability considerations into competition analysis, has achieved substantial international impact.
Professor Lianos served as the Vincent Wright Chair at Sciences Po Paris (2018-2019) and was Chief Researcher of the Skolkovo Laboratory on Law and Development at the National Research University Higher School of Economics, where he also served as academic head of the BRICS Competition Law Project (2014-2019). He held an Alexander von Humboldt Fellowship at the WZB (Social Science Research Centre) in Berlin (2014-2016) and was the Gutenberg Research Chair at France's École Nationale d'Administration (2012-2014). He has also served as an Emile Noël Fellow at New York University School of Law's Jean Monnet Centre (2008-2009), among other notable positions.
He served as co-editor of the Journal of Competition Law and Economics (2017-2024) and of the Yearbook of European Law (2015-2019), both published by Oxford University Press. He has been general editor of the Global Competition Law & Economic Policy book series with Cambridge University Press since 2018.
Professor Lianos is educated in law [PhD (Strasbourg, 2004), LL.M. Trade Regulation (NYU, 2003), LL.M. (Strasbourg, 1997) & Maitrise (Strasbourg, 1996)] and in sociology [PhD cand, Cambridge].
Courses:
Antitrust: International and Comparative Seminar
Competition Law, Digital Regulation and the Intangible Economy Seminar
Ralf Michaels
rcm8404@nyu.edu
Ralf Michaels is Director at the Max Planck Institute for Comparative and International Private Law in Hamburg, Germany, Chair in Global Law at Queen Mary University in London, and Professor of Law at Hamburg University. Until 2019 he was the Arthur Larson Professor at Duke University School of Law; he has also been a visiting professor at the Universities of Paris II Panthéon-Assas, Princeton, Pennsylvania, Toronto, and Tel Aviv, as well as the London School of Economics. Michaels holds an LL.M. from Cambridge University and a PhD in Law from Passau University. He is a widely published scholar of private international law, comparative law, and legal theory; his current research focuses on decolonial comparative law, regulatory conflicts, and theoretical foundations of private international law and global legal plurality. Michaels is a member of the Academia Europaea, the American Law Institute, the International Association of Comparative Law, and the Comparative Law Associations of the United States, Germany, and France.
Course:
Introduction to Comparative Law