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A parallel complexity space for services. Services ECI and Balassa RCA computed on the 12 main EBOPS 2010 categories from WTO-OECD BaTIS (BPM6), using the same eigenvalue method as TradeWeave goods ECI. A view that exists on neither OEC nor the Harvard Atlas.
Source: WTO-OECD Balanced Trade in Services (BaTIS), BPM6, December 2025 edition, 2005-2024, 26 EBOPS 2010 categories (free, no login) | OECD-WTO (2025), Balanced Trade in Services (BaTIS) database, methodology paper | Goods ECI: BACI 202501 (CEPII), HS92, 1995-2024 (retrieved 2026-04-28)
Methodology: Services RCA = Balassa index on services exports per 12 main EBOPS 2010 category (RCA>=1 = revealed advantage), dimensionless. Services ECI = Hidalgo-Hausmann method: second eigenvector of the reflections matrix on the country x 12-main-EBOPS RCA>=1 bipartite graph, z-standardized and sign-oriented to diversity, identical to the goods ECI algorithm. Complexity gap = goods ECI rank minus services ECI rank. BaTIS values are USD millions, stored as thousands USD (x1000) to match the BACI/FAOSTAT convention. About 90% of BaTIS records are reported; the rest are gravity-model or interpolation estimates, so developing-economy bilateral values are model-imputed. The 26-category EBOPS space is coarser than HS6, so services ECI is noisier than goods ECI. Sub-categories and memorandum items are excluded from the complexity matrix to avoid parent-child double-counting.