Nicolas Graf teaches Strategy and Management and is Director of ESSEC's Tourism, Travel & Foor Center of Excellence. His research focuses on competitive strategy, market structure and franchise systems in service industries and has been published in journals including the International Journal of Hospitality Management, and the Journal of Retail and Leisure Property. Prior to joining ESSEC, he taught at the University of Houston, École Hôtelière de Lausanne and Reims Management School. Nicolas has also conducted various consulting projects in the fields of asset management, strategic planning and hotel development. He holds a Ph.D., in Hospitality and Tourism Management, Virginia Polytechnic Institute.