Introduction: globalization and international investment law -- The dynamics of multilateralism and bilateralism in international investment relations -- Treaty negotiation and multilateralization of international investment law -- Multilateralization through most-favored-nation treatment -- Multilateralization and corporate structuring -- Multilateral enforcement of international investment law -- Multilateralization through interpretation: producing and reproducing coherence in investment jurisprudence -- Conclusion: Multilateralization, universalization, constitutionalization.