Steven R. Ratner

Steven R. Ratner is the Bruno Simma Collegiate Professor of Law at the University of Michigan Law School, where he focuses on public international law, human rights, and business ethics. He directs the Donia Human Rights Center and has held key roles in international legal bodies, including UN commissions on Ethiopia, Sri Lanka, and the Khmer Rouge.

• Education: BA from Princeton University, MA from Institut Universitaire de Hautes Études Internationales, JD from Yale University.

His research spans war and peace, territorial disputes, foreign investment law, and the intersection of international law with political philosophy. He has advised on international arbitration and designed the Geneva International Fellows Program.

Recent publications analyze UN impartiality, espionage ethics, and investor-state dispute mechanisms. Awards include a rare invitation to teach at the Hague Academy of International Law (2025) and leadership roles in the American Society of International Law.