In 2007, Hausmann, Hwang and Rodrik (HHR) demonstrated that export specialization patterns have important implications for economic growth. The authors developed an indicator of income level linked to the country’s exports they called EXPY and showed that higher values of the indicator lead to...

We revisit the relationship between trade and growth taking into account the recent expansion of global value chains (GVCs). We develop a new instrument for trade based on gravity estimations. Our instrument exploits a recent transportation shock: the sharp increase in the maximum size of...

Starting with Romer [1987] and Rivera-Batiz-Romer [1991] economists have been able to model how trade enhances growth through the creation and import of new varieties. In this framework, international trade increases economic output through two channels. First, trade raises productivity levels...