Torre Cuevas, Fernando de laLahr, Michael L.2025-07-032025-07-032025-06-24Fernando de la Torre Cuevas & Michael L. Lahr (24 Jun 2025): Linking regions to the world: simplifying gravity equations to embed regions within global input-output models, Spatial Economic Analysis, DOI: 10.1080/17421772.2025.25145911742-1772https://hdl.handle.net/10347/42381This is an Accepted Manuscript of an article published by Taylor & Francis in Spatial Economic Analysis on 24 Jun 2025, available at: https://doi.org/10.1080/17421772.2025.2514591Multiregional input-output (MRIO) tables composed of nations are often used to measure national participation in global value chains (GVCs) as well as the environmental spillovers affiliated with a nation’s production. But a lack of detailed regional trade data deters the inclusion of subnational economies into global MRIO accounts. To facilitate more-ready development of multi-scale MRIO accounts, we identify a gravity model simplification. We illustrate our approach by spatially disaggregating two hypothetical countries and embedding their regions within a global MRIO model. Our results suggest that it is possible to reduce information requirements while producing relatively accurate multi-scale MRIO accounts.engAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/Input-outputRegional economicsInternational tradeGravity modeljournal article10.1080/17421772.2025.2514591embargoed access