Lucio Fernández, Juan José deMínguez, RaúlMinondo, AsierRequena Silvente, Francisco2025-11-072025-11-072024-12-18De Lucio, J., Minguez, R., Minondo, A., & Requena, F. (2024). Top exporters and regional export specialization. National Accouting Review, 6(4), 564-572. https://doi.org/10.3934/NAR.202402610.3934/NAR.2024026https://hdl.handle.net/20.500.14454/4323We examined the role of top exporters in sub-national export specialization using Spanish firm-level export data at the province (NUTS 3) level. Our results show that, on average, 28% of aggregate exports in each province are in sectors where the top exporter determines the revealed comparative advantage (RCA). Moreover, provinces with sectors where the top exporter determines the RCA exhibit a more unstable pattern of export specialization over time. This result suggests that the characteristics and strategies of large firms may affect regional specialization patterns.eng© 2024 the Author(s), licensee AIMS PressTop exporterComparative advantageGranularityPersistenceProvinceSpainjournal article2025-11-072689-3010