‎Many people offered me valuable help during the thesis writing. Without their help and support, the master thesis would not have been possible. First and foremost, I would like to express sincere gratitude to my thesis supervisor, XXX, for his patient guidance, enthusiastic encouragement, and valuable and suggestions before and during my thesis writing. It was his lectures and seminars on U.S. economic policy that taught me the fundamentals of international trade and directed me to the thesis topic. I am grateful that Prof. XXX also guided my independent study, where I started with mainstream theories in International Political Economy and built up the theoretical framework of the thesis. His guidance on my thesis structure and bibliography and his share of in-depth views on trade issues are critical to my thinking and writing.