Marco Valeri received his PhD in Strategic Management and Organizational Behavior from "Tor Vergata" University, Italy. He is Associate Professor in Organizational Behavior at Faculty of Economics, Niccolò Cusano University, Italy. He is a Lecturer in Applied Organizational Behaviour, Xenophon College, UK. He is Visiting Professor at University of Information Science and Technology (UIST) "St. Paul The Apostle", Macedonia. He is Adjunct Professor at Faculty of Social Sciences and Leisure Management, School of Hospitality, Tourism and Events, Taylor's University, Malaysia. He is Associate Researcher in Strategy, Magellan Research Center, School of Management, Iaelyon Business School, Jean Monet University, France. He is Honorary Associate Professor, University of Pannonia, Hungary. His teaching and consultancy fields include strategic management, leadership development, cross-cultural management and international hospitality management. His research areas include sustainability and green practices, s