Over the past 30 years, “deep trade agreements” (DTAs) have proliferated. DTAs go beyond traditional preferential trade agreements focused historically on reducing tariff rates on goods trade, influencing the behavior of exporting firms and multinational enterprises (MNEs) via a broad swath...

We quantify the economic impact of a potential secession of Catalonia from Spain. Using a novel dataset of trade flows between 17 Spanish sub-national regions and 142 countries, we estimate effects of different levels of borders on trade flows and uncover heterogeneity in country-to-country,...