University of Oviedo, University of Oviedo, University of Oviedo, affiliation not provided to SSRN, University of South Florida, University of Oviedo, affiliation not provided to SSRN, University of Oviedo, Instituto Potosino de Investigación Científica y Tecnológica (IPICYT), Universidad de Castilla-La Mancha, University of South Florida, University of South Florida and University of Oviedo