RT Journal Article T1 Subnational MRIO building: the added value of household consumption and aggregate value-added data A1 Torre Cuevas, Fernando de la A1 Lahr, Michael L. A1 Sargento, Ana Lúcia Marto A1 Ferreira, João Pedro K1 Multiregional input-output K1 Spatial heterogeneity K1 Economic modelling AB Data scarcity makes subnational input-output accounts inaccurate. Builders of such accounts must resort to allocating output, value added, imports, and exports to regions using readily available industry-wise data, like shares of national jobs by industry. Meanwhile, population shares are typically used to allocate other final demand components. Lately, however, some statistical agencies have been releasing more subnational data. Surprisingly, builders of subnational input-output accounts do not appear to use them. This is probably due to uncertain trade-offs between the costs and benefits of deploying such data. We, therefore, explore the degree to which using some value-added and household consumption data can improve subnational multiregional input-output accounts. We find that integrating either household-consumption or some value-added data improves account accuracy little. Using both datasets in combination, however, does improve estimated accounts somewhat. Plus, together they portray rather accurate estimates of interregional income multipliers and consumption-based greenhouse gas emissions PB Taylor & Francis YR 2026 FD 2026-02-16 LK https://hdl.handle.net/10347/46033 UL https://hdl.handle.net/10347/46033 LA eng NO de la Torre Cuevas, F., Lahr, M. L., Sargento, A. L. M., & Ferreira, J. P. (2026). Subnational MRIO building: the added value of household consumption and aggregate value-added data. Economic Systems Research, 1–35. https://doi.org/10.1080/09535314.2025.2599092 NO This is an Accepted Manuscript of an article published by Taylor & Francis in Economic Systems Research on 26-02-16, available at: https://doi.org/10.1080/09535314.2025.2599092 NO Xunta de Galicia NO FCT- Portuguese Foundation for Science and Technology DS Minerva RD 28 abr 2026