General Principles of Law and International Investment Arbitration


General Principles of Law in Investment Arbitration surveys the function of general principles in the field of international investment law, particularly in investment arbitration. The authors’ analysis provides a representative case study of how this informal source operates alongside and in the absence of other sources of applicable law.
The contributions are divided into two parts, devoted respectively to substantive principles and procedural ones. The principles discussed in the book are selected for their currency in the practice, their contested nature and their relevance.

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Andrea Gattini is Professor of International Law, Law School of the University of Padua (Italy). He is an associated member of the International Law Association, Institut des Hautes Études Internationales (Paris) and of several international academic institutions. Formerly, he was counsel of the Federal Republic of Germany before the ICJ.
Dr. Filippo Fontanelli is Senior Lecturer in International Economic Law at the University of Edinburgh. He previously worked in private practice and at the International Court of Justice. He serves as expert for the Council of Europe and is co-rapporteur of an ILA Committee on the Procedure of International Courts and Tribunals.
Professor Attila Tanzi holds the chair of international law at the University of Bologna. He served as chairman of the Implementation Committee of the UNECE Water Convention and legal consultant to Italy’s Ministry of Foreign Affairs. He acts as counsel and arbitrator in international legal proceedings.
“…it is a must-read both for anyone considering international investment law as sub-field of the public (international) legal system and those interested in other areas of public international law, all of whom may wonder why no one has tackled this challenge earlier.” - Dr. Marcin Menkes, Associate professor at the Warsaw School of Economics (Poland) (email:
All interested in international investment law and the sources of public international law. Practitioners and scholars of investment arbitration and international legal litigation.
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