Theodore Tarnanidis is an Adjunct Lecturer at the International Hellenic University & Researcher in Applications of MCDA in Digital Marketing at the department of Business Administration, University of Macedonia, Greece. He made his post-doc research in the area of sustainable entrepreneurship from the University of Macedonia. He obtained a Ph.D. from the University of London Met., UK. He received his M.B.A from Liverpool University, UK and is a graduate from the University of Macedonia (Business Administration) and Alexander Technological Educational Institute (Marketing). His research focuses on Decision-Making Processes in Sustainable Innovations and Entrepreneurship, Conjoint Models and preference measurement techniques, modelling of purchases and consumer behaviour. His work has been published in various internationally renowned scientific conferences (Academy of Marketing, European Marketing Academy, PROMETHEE Days, Hellenic Operational Research) and in journals (Journal of Business Ethics,World Review of Entrepreneurship, Management and Sustainable Development, Journal of Retailing and Consumer Services, Current Issues in Tourism). Email: tarnanidis@uom.edu.gr