1. Associate Professor, School of Building Engineering, Dept. of Graphic Engineering, Univ. de Sevilla, Avda. Reina Mercedes 4 A, 41012 Sevilla, Spain.
2. Senior Lecturer, School Industrial Relations and Human Resource Management, Dept. of Business Administration and Marketing, Univ. de Sevilla, Enramadilla 18, 41018 Sevilla, Spain.
3. Senior Lecturer, School of Building Engineering, Dept. of Business Organization, Univ. Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain (corresponding author).