The increasing transnationalisation of regulation – and social life more generally – challenges the basic concepts of legal and political theory today. One of the key concepts being so challenged is authority. This discerning book offers a plenitude of resources and suggestions for meeting that challenge.

The interaction between state, transnational and international law is overlapping and often conflicting. Yet despite this messiness and multiplicity, law still creates obligations for its subjects. Despite its plurality, law still claims some kind of authority. The implications of this plurality of law can be troubling. It generates uncertainty for law-users over which law they are bound by, or for law-makers over the limits of their authority. Thus the practical problem is not plurality of law in itself, rather confusion over law's authority in such pluralist circumstances. Roughan argues that understanding authority in such pluralist circumstances requires a new conception of "relative authority." This book seeks to provide the theoretical tools needed to bring the disciplines examining legal and constitutional pluralism, into more direct engagement with theories of authority, by examining the one practice in which they are all interested: the practice of public authority.

This book traces the evolution of transnational legal authority in the course of globalization. Representative case studies buttress its conclusion that today transnational authority is multifaceted, a phenomenon that renders unreliable the concepts of territoriality/extraterritoriality as global governance markers.

Interactions between state, international, transnational, and intra-state law involve overlapping, and sometimes conflicting, claims to legitimate authority. This has led scholars to new theoretical explanations of sovereignty, constitutionalism, and legality, but there has been little treatment of authority itself. This book asks whether, and under what conditions, there can be multiple legitimate authorities with overlapping or conflicting domains. Can legitimate authority be shared between state, supra-state, and non-state actors, and if so, how should they relate to one another? Roughan argues that understanding authority in contemporary pluralist circumstances requires a new conception of relative authority, and a new theory of its legitimacy. The theory of relative authority treats the interdependence of authorities, and the relationships in which they are engaged, as critical to any assessment of their legitimacy. It offers a tool for evaluating inter-authority relationships prevalent in international, transnational, state, and non-state constitutional practice, while suggesting significant revisions to the idea that law, in general or even by necessity, claims to have legitimate authority.

The question of the authority of international law over domestic authorities and the duties of state officials to international law are fundamental concerns in international legal theory and practice. The Authority of International Law: Obedience, Respect, and Rebuttal addresses these concerns by reframing the present accounts of authority in international law, construing its authority as imposing three different layers of duties on domestic officials: the duty to obey, the duty to respect, and the duty to rebut. The book provides an original interpretation of this authority - one that is not tied to prior state consent or domestic constitutional frameworks. It offers a nuanced account, arguing that whether or not international law is obeyed within any given situation depends on the type of duty it imposes on the state, and that duty's normative force. There is no strict framework in which international law always trumps domestic law or vice versa. Instead, Cali presents a realistic account of when international law has absolute authority, and when it can afford a margin of appreciation to states. The Authority of International Law contributes to existing debates by considering the gap between consent-based jurisprudential theories of authority and self-interest and identity-based theories of compliance, and by considering monism, dualism, and normative pluralism as theories for addressing authority competition between domestic legal orders and international law.

This thought-provoking book addresses the legal questions raised by areas of limited statehood, in which the State lacks the ability to exercise the full depth of its governmental authority. Featuring original contributions written by renowned international scholars, chapters investigate key issues arising at the junction between both domestic and international rule of law and areas of limited statehood, as well as the alternative modes of governance that develop therein.

Transnational Legal Orders offers an empirically grounded approach to the emergence of legal orders beyond nation-states that reframes the study of law and society.

Transnational merchant law, which is mistakenly regarded in purely technical and apolitical terms, is a central mediator of domestic and global political/legal orders. By engaging with literature in international law, international relations and international political economy, the author develops the conceptual and theoretical foundations for analyzing the political significance of international economic law. In doing so, she illustrates the private nature of the interests that this evolving legal order has served over time. The book makes a sustained and comprehensive analysis of transnational merchant law and offers a radical critique of global capitalism.

A comprehensive compendium for the field of transnational law by providing a treatment and presentation in an area that has become one of the most intriguing and innovative developments in legal doctrine, scholarship, theory, as well as practice today. With a considerable contribution from and engagement with social sciences, it features numerous reflections on the relationship between transnational law and legal practice.