We use 6-digit bilateral trade data to document the effect of WTO/GATT membership on the extensive and intensive product margins of trade. We construct gravity equations for the two product margins motivated by Chaney (2008). The empirical results show that standard gravity variables provide...

We develop a structural framework that allows us to quantify the evolution of aggregate bilateral trade costs and markups over time. With minimal assumptions, we can disentangle aggregate markup and trade cost changes from observed changes in trade flows. We apply our method to trade data...

GeoDist makes available the exhaustive set of gravity variables used in Mayer and Zignago (2005). GeoDist provides several geographical variables, in particular bilateral distances measured using citylevel data to assess the geographic distribution of population inside each nation. We have...

We develop a structural framework that allows us to quantify the evolution of aggregate bilateral trade costs and markups over time. With minimal assumptions, we can disentangle aggregate markup and trade cost changes from observed changes in trade flows. We apply our method to trade data...

We develop and test a theory of efficient international trade. Efficiency gains arise through lower trade costs faced by 'trade specialists', whose superiority over 'common traders' manifests itself through lower trade costs. To test our theory, we construct and deploy a novel dataset based on...

We develop and test a theory of efficient international trade. Efficiency gains arise through lower trade costs faced by 'trade specialists', whose superiority over 'common traders' manifests itself through lower trade costs. To test our theory, we construct and deploy a novel dataset based on...

We develop and test a theory of efficient international trade. Efficiency gains arise through lower trade costs faced by 'trade specialists', whose superiority over 'common traders' manifests itself through lower trade costs. To test our theory, we construct and deploy a novel dataset based on...