'Reasonableness' Limits in Extraterritorial Regulation

Hosted by the Department of Law

Sumeet Valrani Lecture Theatre (CBG.1.01)


Professor Hannah Buxbaum

Professor Hannah Buxbaum

Vice President for International Affairs, John E. Schiller Chair in Legal Ethics, Indiana University


Dr Jan Kleinheisterkamp

Dr Jan Kleinheisterkamp

Associate Professor of Law, LSE Department of Law


Extraterritorial regulation has become commonplace. States frequently apply their laws to foreign conduct in order to protect local economic interests—and sometimes to advance shared interests, such as the protection of human rights. Are there limits to these exercises of state authority? If so, what is the source and content of those limits? This lecture will investigate the role of “reasonableness” as a limitation on extraterritorial regulation. It will focus in particular on developments in the United States, where the recently adopted Restatement (Fourth) of Foreign Relations Law has reframed the role of international law in limiting the reach of national legislation.

About the speaker

Professor Hannah Buxbaum is Vice President for International Affairs, the John E. Schiller Chair in Legal Ethics and a Professor of Law at Indiana University. Professor Buxbaum is an expert on cross-border regulatory litigation and extraterritoriality, U.S. securities and competition law, and foreign relations law. 

About the Chair

Dr Jan Kleinheisterhamp is an Associate Professor of Law at LSE Department of Law 

About the Department of Law 

The LSE Law Department (@LSELaw) is one of the world’s best law schools. The department ranked first for research outputs in the UK's most recent Research Excellence Framework (REF 2014) and was in the top 5 law departments overall in the 2018 Complete University Guide. Our staff play a major role in helping to shape policy debates, and in the education of current and future lawyers and legal scholars from around the world.


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