Strategies for Internationalization: A Comparative Study of Thai and Vietnamese Companies in Two Industries Thesis presented to the Faculty of Economics and Social Sciences at the University of Fribourg (Switzerland) in fulfillment of the requirements for the degree of Doctor of Economics and Social Sciences by Thi Kim Ngoc PHAM from Vietnam Accepted by the Faculty of Economics and Social Sciences on December 16 th , 2008 at the proposal of Prof. Dr. Rudolf Grünig (First Advisor) and Prof. Dr. Dirk Morschett (Second Advisor) Fribourg, Switzerland 2008