<span class="vcard">Gregory Shaffer</span>

Gregory Shaffer

Guest Author

Professor Gregory Shaffer (LinkedInX Bluesky) is the Scott K Ginsburg Professor of International Law at Georgetown University Law Center. Professor Shaffer served as President of the American Society of International Law from 2022-2024.

Professor Shaffer is a globally recognized expert on law and globalization, with a specialization in international trade law. His publications include eleven books and over one hundred articles and book chapters, and his work is among the most cited in the international law field. The work is cross-disciplinary, addressing such topics as transnational legal ordering, legal realism, hard and soft law, comparative institutional analysis, public-private networks in international trade, the impact of the rise of China and other emerging economies on international law, and the ways trade and investment law implicate domestic regulation and social and distributive policies. His substantive law specialty is international economic law. His book Emerging Powers and the World Trading System: The Past and Future of International Economic Law (CUP 2021) won the 2022 Chadwick F. Alger Prize of the International Studies Association. He also won the Inaugural John Jackson Memorial Prize for the best publication in the Journal of International Economic Law.

Professor Shaffer is a recipient of multiple U.S. National Science Foundation awards, was a Shimizu Visiting Professor at London School of Economics, a Fernand Braudel Fellow at the European University Institute, a Fulbright Senior Research Scholar in Rome, and a Visiting Scholar at the American Bar Foundation, and University of Pennsylvania and Columbia Law Schools. He has given invited lectures and keynotes in over 25 countries. He has published, had his work cited, and been interviewed widely, including in the New York Times, Financial Times, Washington Post, Los Angeles Times, National Public Radio, Bloomberg News, and other press and media outlets around the world.

Articles by this author:

A bronze sign marks the visitors' entrance to the U.S. Trade Representative's office on August 18, 2024, in Washington, DC.
Exterior view of The United States Court of International Trade in lower Manhattan on May 29, 2025 in New York City. In a ruling that surprised many, the Manhattan-based trade court ruled in an opinion by a three-judge panel that a 1977 law called the International Emergency Economic Powers Act (IEEPA) does not grant Trump "unbounded" authority to impose the worldwide and retaliatory tariffs he has issued by executive order recently. (Photo by Spencer Platt/Getty Images)
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People gather at Lychakiv Cemetery to commemorate the fallen Ukrainian soldiers
People gather at Lychakiv Cemetery to commemorate the fallen Ukrainian soldiers

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