The Melitz model highlights the importance of the extensive margin (the number of firms exporting) for trade flows. Using the World Bank's Exporter Dynamics Database (EDD) featuring firm-level exports from 50 countries, we find that around 50 percent of variation in exports is along the...

To identify transactions at risk of tariff evasion, this paper matches export transaction data from France with import transaction data from Madagascar using container identifiers. Reporting discrepancies between exporters and importers are prevalent but small, with over two-fifths of importers...