Prior to joining CEU, he taught at Yale University and at Warsaw University College of Technology and Business. He holds a doctorate in legal science (JSD) from Yale Law School (where he has also earned a master's in law or LLM), another PhD from Warsaw University, an M.P.A. in economics and public policy from Princeton University’s Woodrow Wilson School of Public and International Affairs, and an MBA with distinction from INSEAD. He has consulted for numerous public and nonprofit organizations, including the Secretariat-General of the European Commission, Committee for Economic Development (Washington DC), and the Offices of the President and the Prime Minister of Poland. His research interests include the theory of regulation and public management.