In less than three decades, China has grown from playing a negligible role in international trade to being one of the world's largest exporters, a substantial importer of raw materials, intermediate outputs, and other goods, and both a recipient and source of foreign investment. Not...

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...