The liber amicorum pays homage to Stephan Hobe for his outstanding career as a specialist of a broad variety of fields of international law, e.g. air law, space law, investment law and international economic law. All of these fields are covered with view to the challenging problem of mankind regarding increasingly rare natural resources. The contributions stem from long-time colleagues and friends and cover all relevant aspects of the international law of commodities. With contributions by Prof. Dr. Marc Bungenberg, Prof. Dr. Manjiao Chi, Prof. Dr. Hans-Georg Dederer, Barry de Vries, Prof. Steven Freeland, Prof. Dr. Michael Lysander Fremuth, Prof. Dr. Jörn Griebel, Assoc.-Prof. Dr. Robert Heinsch, Prof. Dr. Dr. h.c. Stephan Hobe, Prof. Dr. Charlotte Kreuter-Kirchhof, Prof. Dr. Heike Krieger, Prof. Dr. Thilo Marauhn, Prof. Dr. Irmgard Marboe, Prof. Dr. Bimal N. Patel, Jonas Püschmann, Prof. Dr. August Reinisch, Prof. Dr. Nico Schrijver, Prof. Dr. Christian J. Tams and Dr. Leopold von Carlowitz.