Drawing on a large and varied body of judicial and arbitral case law, this book provides a comprehensive, original, and up-to-date account of the role of equity in international law.

This text analyses the conventional and customary framework of the fair and equitable treatment clauses commonly found in bilateral investment treaties (BITs) and charts how these clauses have become norms of customary international law.

This book provides a systematic and comprehensive study of the legal concept of equity as it operates in contemporary international law. A principle with a long pedigree, equity has been present in legal thought and in municipal legal systems since antiquity. Introduced in international legal decisions through claims commissions and arbitral tribunals, equity became progressively part and parcel of the international law mainstream. From international cultural heritage law to the law on climate change, from maritime boundary delimitations to decisions on security for costs in investment arbitration, the relevance of equity is more far-reaching than has previously been acknowledged. In contrast with earlier studies on the topic, this book is informed by a body of judicial and arbitral case law that has never been so substantial and varied. It also draws extensively on the prolific case law of investment tribunals, gaining insights from a valuable source that is typically overlooked in public international law scholarship. As the importance of international law increases, covering continuously new domains, the value of equity increases with it. It is this new equity in the international law of the 21st century that this book explores.

Georges Abi-Saab began his writing and teaching at a time when the process of decolonization, and thereafter the quest for emancipation, began to make its far-reaching impact on the international scene, producing significant changes in the international environment, both quantitatively in increasing the number of nation-States and qualitatively in changing patterns of interests and claims. This was bound to result in new pressures on the international legal system itself and in a questioning of the traditional Eurocentric content of international law. In his work and teaching Professor Abi-Saab viewed the dynamics of international law as a function of two driving forces: the emergence of the third world and the sense of injustice. In his view, the first driving force - the emergence of the third world - raised the problem of exclusion: exclusion from participation in the elaboration of international law and the decision-making process, and exclusion as beneficiaries of the resulting rules of international law. At the same time, this new force introduced diversity into the international scene, reflecting the richness of the international community in its different facets. This process remains relevant today, reflecting the contemporary problem of exclusion of new actors as well as their quest for participation. The second driving force - the sense of injustice - posed a teleological problem for him, that of defining community values in order that they capture the different facets of justice, whether formal or distributive. So long as there is no effective organic structure, international law in his view will continue to remain effectiveness-oriented, reflecting rather than impacting on the structures of power. Nevertheless, it is undeniable that there is an on-going process of development of community values and interests; as Georges Abi-Saab wrote with reference to international crimes: `law, like all social phenomena, is a continuous unfolding, a continuous process of elaboration'. He has also considered that the dynamics of the international legal process itself can be captured from the perspective of international organizations as vehicles for change in the international system. From his early writings, Georges Abi-Saab approached the United Nations Charter as a blueprint - both normative and institutional - for a certain type of international society. International institutions with all their imperfections, continue for him to be the means of realization of the law of cooperation which lies at the heart of his concept of the international system. The themes selected for this volume in honour of Professor Georges Abi-Saab are intended to reflect his unique and pioneering contribution to the field of international law. The contributors are drawn from what he has always considered to be his large `family' of former students: in his forty years of teaching, Georges Abi-Saab has acted as mentor to generations of students from all over the world who have benefited from his vision, insights, originality and creative and stimulating use of language. The contributors also include colleagues and friends who share a similar vision of the international legal system.

Selected from the papers presented at the twenty-third International Social Philosophy Conference held in July of 2006 at University of Victoria in Victoria, British Columbia --Preface.

This book analyses whether, and how, equity and equitable principles can be employed as juridical tools in the legal reasoning of judges and lawyers in World Trade Organization (WTO) disputes where there is interaction between norms derived from the multilateral trade regime and other international legal regimes. Bringing the literature on equity and equitable principles in international law up to date this book tackles several legal problems which have emerged in WTO dispute settlement practice as well as engaging with the concept of the fragmentation of international law. The book provides an original argument about the role and significance of equity and equitable principles in the debate over fragmentation by providing a coherent methodology for addressing conflicts and overlaps between WTO and non-WTO norms in the context of Dispute Settlement Body proceedings.

This is a book on “equity in the civil law tradition” from the double perspective of legal history and comparative law. It is intended not only for civil lawyers who want to better understand the role and history of equity in their own legal tradition, but also – and perhaps more saliently – for common lawyers who are curious about why the history of equity has unfolded so differently on the continent of Europe and in Latin America. The author begins with the investigation of the philosophical foundations of the Western notion of equity in the teachings of Plato and Aristotle and of how their ideas affected the works of the great Attic orators (chapter 2). He then addresses the way in which Roman law turned this notion into a legal concept of considerable practical importance (chapter 3) and how it survived the fall of Rome and was later elaborated in the Middle Ages by civilists and canonists (chapter 4). Subsequently, the author analyses how the notion of equity was dealt with in the Modern Era by legal humanists, Protestant and Catholic theologians, scholars of the usus modernus pandectarum and of Roman-Dutch law, and then by legal rationalism and the philosophers of the Enlightenment (chapter 5). He then deals with the history of equity on the continent since the fragmentation of the ius commune and the codifications of the nineteenth century and with its reception in Latin America (chapter 6). Finally, the author offers some closing remarks on the fundamental equivocalness (or relativity, as some scholars put it) of the notion of equity in the civil law tradition today (conclusion).