We develop a simple model of international trade with heterogeneous firms that is consistent with a number of stylized features of the data. In particular, the model predicts positive as well as zero trade flows across pairs of countries, and it allows the number of exporting firms to vary...

We develop a simple model of international trade with heterogeneous firms that is consistent with a number of stylized features of the data. In particular, the model predicts positive as well as zero trade flows across pairs of countries, and it allows the number of exporting firms to vary...

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...