
| Never the Twain Shall Meet? Cultural Limits Between Continental Dogmatism and Law and Economics Theory? Invited Speaker, Workshop Law and Economics – Foundations and Applications 2011 |

| Administrative Supervision, Legal System and Consumer Law in Cross-Border Selling Invited Speaker and Panellist, International Symposium on Cross-Border Trade in E-Commerce 2011 |

| Principles of Private law and fundamental rights in Europe Speaker, Doctoral Workshop 2011 We the Regulators – Systematisation of European Risk Regulation as the new Integration Through Law? Invited Speaker, Doctoral Workshop 2010 |
| Annual Conference of the German-American-Lawyer-Association Distinguished Participant and Discussant, 2009 |
| Systematising European Risk Regulation – Reasons for and Impact of an Increasingly Coherent System in Risk Regulation in European Safety Law Invited Speaker, Summer School: Foundations of European Law II, Centre of Excellence, 2009 |

| International and European Competition of Agencies – The Case of Pharmaceutical Law Speaker, 12th International Conference on Consumer Law “Consumer Law - Globalisation, Poverty and Development”, 2009 |
| Medical Tourism Meets Health Law: US-EU Dialogue (USA) Inivited Chairman, Symposium of the Wisconsin International Law Journal, University of Wisconsin-Madison Health Science Learning Center, 2008 |