162238 20251017144636.0 doi 10.1016/j.cities.2025.106184 sideral 144760 ART-2025-144760 eng Puente-Ajovín, Miguel Universidad de Zaragoza (orcid)0000-0001-9728-668X The determinants of national city size distributions: A BMA approach 2025 Access copy available to the general public Unrestricted This paper investigates the factors that influence the national distribution of city sizes, using data from both gridded population estimates and nighttime lights. Leveraging a global definition of human settlements, it also accounts for spatial units smaller than traditional urban centers. To address model uncertainty in identifying robust determinants of cross-country variation in urban concentration, the analysis employs Bayesian model averaging techniques. Across different samples, openness to trade, the Polity score, and natural resource dependence consistently show posterior inclusion probabilities of approximately 50 % or higher. The findings highlight the potential roles of international trade and institutional quality in fostering more balanced national urban systems. info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Sanso-Navarro, Marcos Universidad de Zaragoza (orcid)0000-0002-5926-2166 Vera-Cabello, María (orcid)0000-0001-8973-6804 4000 415 Universidad de Zaragoza Dpto. Análisis Económico Área Fund. Análisis Económico 166 (2025), 106184 [14 pp.] Cities Cities 0264-2751 2069910 http://zaguan.unizar.es/record/162238/files/texto_completo.pdf Versión publicada 2604645 http://zaguan.unizar.es/record/162238/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:162238 articulos driver 2025-10-17-14:29:13 ARTICLE