I also want to thank all the authors whose books and articles have inspired me inthe entire process of finishing the thesis.

　　Finally, I am indebted to my parents for supporting me to do whatever I want to. Ialso need to express my gratitude to all my friends, my classmates and my roommatesin particular.

毕业论文致谢词五：

　　I would like to dedicate my paper to all those who have offered me tremendousassistance during the three years in Zhejiang University of Finance and Economics.

　　First of all, my heartiest thanks flow to my supervisor, Professor Cao Daogen, forhis helpful guidance, valuable suggestions and constant encouragement both in mystudy and in my life. His profound insight and accurateness about my paper taught meso much that they are engraved on my heart. He provided me with beneficial help andoffered me precious comments during the whole process of my writing, without whichthe paper would not be what it is now.

　　Also, I would like to express my sincere gratitude to all the professors who havetaught me in this university that greatly broadened my horizon and enriched myknowledge in my study. Their inspirational and conscientious teaching have providedme with a firm basis for the composing of this paper and will always be of great valueto my future academic research.

　　My thanks also go to the scholars whose monographs and academic papers haveenlightened me in the writing of this paper.

　　Finally, I would like to extend my deep gratefulness to my family and friends,especially my three roommates, Chen Linghua, Gong Sha and Huang Jin, whoseencouragement and support have made my accomplishments possible.