Models that feature ideas naturally lead to scale effects, and this results in the counterfactual implication that larger countries should be richer than smaller ones. Perhaps small countries are not poor because they beneï¬Ât from foreign ideas through trade. Quantitative trade models do...

The crucial difference between Foreign Direct Investment (FDI) and other international financial flows is that the former involves technology flows across countries. In the presence of country-specific shocks, these flows not only alter the distribution of output across countries, but also...

suggesting that these flows are mainly substituting each other.

We document new facts about the behavior of U.S. multinational firms and their affiliates regarding the product space in which they operate, the nature of their input-output relationships, and intra-firm trade flows. We use confidential data on U.S. multinational firms from the Bureau of...

I examine new data on the number and revenues of foreign affiliates of multinational firms across a large number of country pairs. The data shed light on the behavior of the intensive and extensive margins of multinational production (MP). To capture the patterns observed in the data, I build...

overall gains from openness.

Because of scale effects, idea-based growth models have the counterfactual implication that larger countries should be much richer than smaller ones. New trade models share this same problematic feature: although small countries gain more from trade than large ones, this is not strong enough to...

One feature of globalization is that countries are increasingly specialized in either innovation or in production. To understand the forces behind this specialization and its welfare consequences, we develop a monopolistic competition model of trade and multinational production (MP) in which...

This paper quantifies the gains from openness arising from trade and multinational production (MP). We present a model that captures key dimensions of the interaction between these two flows: trade and MP are competing ways to serve a foreign market, MP relies on imports of intermediate goods...

Using firm-level data on U.S. multinationals, we find that affiliates created for vertical FDI motives seem to be larger and fewer—both within the firm and across affiliates—while affiliates that appear to be created for horizontal FDI motives are smaller and more common. Next, we...