Since September 2015 Research Fellow in the project Transnational Force of Law, leading researcher of the subproject Lex Financiaria. Before, Research Fellow at the Collaborative Research Center (SFB) 597 Transformation of the State, Universität Bremen. Johan Horst was awarded a PHD in law for his dissertation on transnational financial markets law (Transnationale Rechtserzeugung. Elemente einer normativen Theorie der Lex Financiaria; supervisors Andreas Fischer-Lescano, Gunther Teubner, summa cum laude).

Studies of law as well as philosophy and history in Freiburg, Berlin, Paris, and at Georgetown University, Washington DC. Legal Clerkship (Rechtsreferendariat) at the KG Berlin (Court of Appeals of the State of Berlin), the Federal Foreign Office, United Nations Desk (Referat VN 04), and Hengeler Mueller.

Research Interests: International and transnational law, international economic law, transnational financial markets law, transnational investment law, international trade law, and environmental law, law and development.

Legal theory, the principles and philosophical/sociological foundations of transnational normative orders, critical legal studies, postcolonial studies, critical systems theory, law and heterodox economics.