This paper studies the effects of tariffs on intra-firm trade. Building on the Antràs and Helpman (2004) North-South theoretical framework, I show that higher Northern tariffs reduce the incentives for outsourcing and offshoring, while higher Southern tariffs have the opposite effects. I also...

We distinguish between U.S. aid and non-U.S. aid and study the effects on growth in recipient countries. Our analysis exploits time variation in aid due to changes in the supply of U.S. aid and cross-sectional variation in a country's tendency to receive any U.S. aid. We find that U.S. aid has a...

The Generalized System of Preferences (GSP) - a system of differential and favorable trade arrangements toward less developed countries - has been around since the early 1970s. A primary objective of GSP schemes, sponsored by developed industrialized countries, especially by the United States...

Barriers to international trade are known to be large but due to data limitations it is hard to measure them directly for a large number of countries over many years. To address this problem I derive a micro-founded measure of bilateral trade costs that indirectly infers trade frictions from...

A free-trade agreement (FTA) between the United States and Colombia has been stalled in the U.S. Congress for more than four years since it was signed in November 2006. Proponents of the agreement argue that it will promote U.S. exports and deepen our ties with a key democratic ally in South...