Definition and sources
Our definition of FTZ is quite restrictive even though we have included the “maquiladora” type of FTZ. We cover only those FTZs with a processing activity that benefit from tariff exemptions under specific conditions that differentiate beneficiary firms from non-beneficiary firms. For example, we exclude free ports, transit zones, “duty free” zones and zones eligible for other incentives excluding tariff exemptions.
The FTZ database was constructed firstly by consulting the WTO Trade Policy Reviews, written independently by the WTO Secretariat, and the Investment Climate Statements published by the US Department of State. These two resources systematically provide information on national FTZ policy and activity. However, we also drew on academic resources, published papers and books and reports by international organisations such as the UN, the WB. For example, we took Singa Boyenge (2007), FIAS (2008), Tiefenbrun (2012), Farole & Akinci, ed. (2011), Bost, ed. (2010) and hundreds of documents on specific regions, countries and zones.
The World FTZ Database synthesizes the information about the FTZ programs for 158 countries. An independent file is available for each country. The database presents the countries' number of zones, characteristics, location, year of implementation, size, fiscal regulation, industrial specialization etc. collected from different sources, such as NGO reports, academic articles, and authority websites.
Yücer, A., Siroën, J.-M., Archanskaia, E. (2014). World FTZ Database, ftz.dauphine.fr
Yücer, A., Siroën, J.-M. (2014). "Trade Performance of Free Trade Zones", DIAL WP.