Part I The Sources and Development of International Law -- Positivism, functionalism, and international law -- Thee subjects of a modern law of nations -- Codification and development of international law -- New approaches to the study of international law -- The prescribing function in world constitutive process: how international law is made -- The reality and efficacy of international law -- Global economics and international economic law -- Part II Competing Theories of International Law -- International law and assumptions about the state system -- International relations and international law: two optics -- The waning of the sovereign state: towards a new paradigm for international law -- The concept of legalization -- Part III Hard Law, Soft Law, Legalization and Norms -- Hard and soft law in international governance -- Alternatives to "legalization": richer views of law and politics -- Legalization, trade liberalization and domestic politics: a cautionary note -- Sovereignty and inequality -- Private justice in a global economy: from litigation to arbitration -- Part IV Does International Law Matter? Compliance, Legitimacy and Accountability -- On compliance -- How do international institutions matter? The domestic impact of international rules and norms -- The power of legitimacy and the legitimacy of power: international law in an age of power disequilibrium -- Part V The Laws of War and Force -- The complexities of humanitarian intervention: a new world order challenge -- The use of force in international law.