Intro -- Contents -- Preface -- Introduction -- 1. Contractual Frictions and Global Sourcing -- 2. The Boundaries of the Multinational Firm: An Empirical Analysis -- 3. Contract Enforcement, Comparative Advantage, and Long-Run Growth -- 4. The Dynamics of Firm-Level Adjustment to Trade...

Presents a new research program that is transforming the study of international trade. Until a few years ago, models of international trade did not recognize the heterogeneity of firms and exporters, and could not provide good explanations of international production networks. Now such models...