1. ISCAL (Instituto Superior de Contabilidade e Administração de Lisboa), Instituto Politécnico de Lisboa, Lisboa, Portugal
2. Business Research Unit (BRU-IUL), Instituto Universitário de Lisboa (ISCTE-IUL), Lisboa, Portugal
3. Faculty of Management Sciences, University of Central Punjab, Lahore, Pakistan
4. Faculty of Management Sciences, The Superior University Lahore, Pakistan
5. NOVA Information Management School (NOVA IMS), Universidade Nova de Lisboa, Lisboa, Portugal