1. María Jesús Rodríguez-García is Lecturer at the Center for Sociology and Urban Policies, Pablo de Olavide University, Carretera de Utrera, km. 1, Sevilla, Andalucía 41013, Spain; Clemente J. Navarro Yáñez is Professor, Center for Sociology and Urban Policies, Pablo de Olavide University, Carretera de Utrera, km. 1, Sevilla 41013, Spain;.