What are we to make of the changing role and authority of the state? Over the last 40 years I have used political philosophy and international legal theory to seek some answers, or at least some light, on such topics as
- the legitimate scope of state sovereignty and authority
- global distributive justice
- human rights and regional human rights courts
- regional unions such as the European Union
- federalism
- the changing roles of citizens, non-state actors, multinationals, investors, and consumers
- Subsidiarity:

I am Professor of Political Philosophy at the Faculty of Law, University of Oslo, and at the Institute of philosophy and first semester studies, UiT Arctic University of Norway. At the University of Oslo my contributions include
2013-24 Co-Director of PluriCourts, a Centre of Excellence for the Study of the Legitimate Roles of the Judiciary in the Global Order.
2011-16 Principal Investigator, European Research Council Advanced Grant MultiRights, on the Legitimacy of Multi-Level Human rights Judiciary.
Director of Research at the Norwegian Centre for Human Rights, University of Oslo; 2001-4 as the first University ‘Professor for Research Leadership’; Academic Director of the Nordic Research School in Human Rights.
