Guy Assaker, G. A. Insights into Tourism Demand and Tourism Behavior: Four Papers Using Multiple Perspectives and Structural Equation Modeling: Supervisor: Professor Peter O’Connor, ESSEC Business School (France) Professor Vincenzo Esposito Vinzi, ESSEC Business School (France) Institution Awarding the Ph. D. Degree: ESSEC Business School, France St Date of Defence: 1 July 2010. EJTR 2011, 4, 237-241.