• Sunlight, culture and state capacity 

      Ezcurra Orayen, Roberto Upna Orcid (Wiley, 2023)   Artículo / Artikulua  OpenAccess
      This paper examines the impact of ultraviolet radiation (UV-R) on state capacity. The results indicate that the intensity of UV-R is a strong predictor of cross-country differences in state capacity. Countries with a higher ...
    • Territorial mobility: a measuring proposal 

      Ezcurra Orayen, Roberto Upna Orcid; Pascual Arzoz, Pedro Upna Orcid; Rapún Gárate, Manuel Upna Orcid (2005)   Documento de trabajo / Lan gaiak  OpenAccess
      As a contribution to the study of intradistributional mobility, this paper introduces a family of functions whose usefulness as mobility measures is justified by different theoretical results. Indeed, as a particular case, ...

      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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