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CodeTM.TAX.TCOM.WM.FN.ZS
Indicator NameTariff rate, most favored nation, weighted mean, primary products (%)
Short definitionWeighted mean most favored nations tariff is the average of most favored nation rates weighted by the product import shares corresponding to each partner country. Data are classified using the Harmonized System of trade at the six- or eight-digit level. Tariff line data were matched to Standard International Trade Classification (SITC) revision 3 codes to define commodity groups and import weights. Import weights were calculated using the United Nations Statistics Division's Commodity Trade (Comtrade) database. Primary products are commodities classified in SITC revision 3 sections 0-4 plus division 68 (nonferrous metals).
Long definitionWeighted mean most favored nations tariff is the average of most favored nation rates weighted by the product import shares corresponding to each partner country. Data are classified using the Harmonized System of trade at the six- or eight-digit level. Tariff line data were matched to Standard International Trade Classification (SITC) revision 3 codes to define commodity groups and import weights. Import weights were calculated using the United Nations Statistics Division's Commodity Trade (Comtrade) database. Primary products are commodities classified in SITC revision 3 sections 0-4 plus division 68 (nonferrous metals).
SourceStaff estimates; World Integrated Trade Solution system (WITS), World Bank (WB); Trade Analysis and Information System (TRAINS), UN Conference on Trade and Development (UNCTAD); Integrated Data Base (IDB), World Trade Organization (WTO); Consolidated Tariff Schedules (CTS), World Trade Organization (WTO)
TopicTrade
DatasetWDI
PeriodicityAnnual
Reference period1988-2022
Statistical concept and methodologyMethodology: This indicator represents the trade-weighted average of most-favored-nation (MFN) tariff rates across all primary products tariff lines. Import values are used to weight each rate, reflecting the relative economic significance of different products in international trade. The weighted average is calculated by taking the sum of the products of MFN rates and import values, divided by the total import value. Weighted mean most favored nations tariff is the average of most favored nation rates weighted by the product import shares corresponding to each partner country. Data are classified using the Harmonized System of trade at the six- or eight-digit level. Tariff line data were matched to Standard International Trade Classification (SITC) revision 3 codes to define commodity groups and import weights. Import weights were calculated using the United Nations Statistics Division's Commodity Trade (Comtrade) database. Primary products are commodities classified in SITC revision 3 sections 0-4 plus division 68 (nonferrous metals). Tariff data are primarily sourced from the World Trade Organization (World Trade Organization (WTO)) Consolidated Tariff Schedules (Consolidated Tariff Schedules (CTS)) and Integrated Database (Integrated Database (IDB)), with supplementary inputs from the United Nations Conference on Trade and Development (United Nations Conference on Trade and Development (UNCTAD)). Data are submitted by national authorities using the Harmonized System (Harmonized System (HS)) classification. The WTO Secretariat validates and harmonizes submissions to a common HS version for comparability. Data are generally updated annually or as new schedules are submitted. Due to validation and alignment processes, there is typically a one- to two-year time lag between national reporting and publication. Only tariff lines with both reported MFN rates and corresponding trade values are included. The WTO applies standardized concordance procedures to match trade and tariff data using harmonized product classifications.
License URLhttps://datacatalog.worldbank.org/public-licenses#cc-by
License TypeCC BY-4.0
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