Theodore Tarnanidis is a professiorial research fellow & marketing scholar, adjunct professor at the International Hellenic University and researcher in Applications of D.Sc. and MCDA. Theodore has six years experience as a marketing and decision making practitioner. 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 International Marketing, Multi-cultural Marketing, Business Marketing, Consumer science, Marketing Management, Methodology, Advanced Quantitative Methods, Decision Science, Multiple-Criteria Decision Analysis, Management of Education, Sustainable Entrepreneurship. His work has been published in various internationally renowned scientific conferences (Academy of Marketing, European Marketing Academy, PROMETHEE Days, Hellenic Operational Research) and in the Journal of Business Ethics, World Review of Entrepreneurship, Management and Sustainable Development, Journal of Retailing and Consumer Services, Current Issues in Tourism, Marketing Science & Inspirations, European Journal of Educational Management, Management Science Letters, Administrative Sciences and other journals. Email: tarnanidis@uom.edu.gr , tarnanidis@ihu.gr