Education
Ph.D Economics University of Tsukuba, Ibaraki Prefecture, Japan. 2006.3.24
M.A 　Industry Trade Xi’an Jiaotong University, Xi’an, Shannxi Province, China. 1997.6
B.A Mathematics Shannxi Teacher’s University, Xi’an, Shannxi Province, China. 1990.7

Graduate Fields of Concentration
Microeconomic, Applied Microeconomics;
Health Economics, Medical Economics;
Econometrics.

Research Interests
Health Economics
-Life Insurance Market and Moral Hazard;
-Long-term Care Insurance System, Social Welfare and Development;
-Medical Care Expenditure and Pharmaceutical Innovation.

Labor Market
-Overtime Work and Health
-Immigration Labor Market

Teaching Interests
Applied Econometrics (Undergraduate & graduate levels)
International Economics (Asian, especially China, Japan and Korean)
Microeconomics theory (Undergraduate & Graduate levels)
Theory of Health Economics (Graduate Level)

Professional Experiences

2006.9.1 – present
School of Public Policy and Administration, Xi'an Jiaotong University, China

2006.4.1 – 2006.8.26
Foreign Research Fellow, Graduate School of Humanities and Social Sciences, University of Tsukuba, Japan.

2005.12 – 2006.3.31
Recitation, Econometrics, Professor Ryo Nakajima, The Joint Japan World Bank Graduate Scholarship Program of Doctoral Program of International Political Economy, University of Tsukuba.

2004.4 – 2006.3.31
Research Assistant, Professor Tadashi Yamada, University of Tsukuba, Japan.
Teaching Assistant, Microeconomics of Professor Tadashi Yamada, University of Tsukuba, Japan.
Teaching Assistant, Statistics of Professor Tadashi Yamada, University of Tsukuba, Japan.
Teaching Assistant, Applied Econometrics of Professor Tadashi Yamada, University of Tsukuba, Japan.

2003.4- 2004.4
Teaching Assistant, International Economics of Professor Sungjin Kun, University of Tsukuba, Japan.
Teaching Assistant, Macroeconomics of Professor Sungjin Kun, University of Tsukuba, Japan.

1990.1- 2000.10
Instructor, International Trade, Developing Economics, Xi’an Jiaotong University, Xi’an, Shannxi Province, China.

Ph.D. Dissertation
Essays on Health
–Overtime Work, Long-Term Care, and Health Insurance-

Discussion Papers
Tadashi Yamada,Tetsuji Yamada, Weihong Zeng and Chia-Ching Chen. "Why is Employee's Overwork Prevalent in Japan, Despite the Adverse Effects on Health," Institute of Policy and Planning Sciences (IPPS), Discussion Paper Series, No.1108, March 2005, pp. 1-28.

山田直志、山田哲司、曾衛紅、陳佳青.『日本の内部労働市場：被雇用者の超過労働と健康』, University of Tsukuba, Institute of Policy and Planning Sciences (IPPS), Discussion Paper Series, No.1077, February 2004, pp. 1-35.

Papers Delivered at International Conferences
“Comparative Analysis of Welfare Changes after the Long-term Care Insurance System in Japan in 2000”, International Health Economics Association (iHEA) 5th World Congress, Investing in Health, Barcelona, Spain, July 10-13, 2005.

“Why is Employee’s Overwork Prevalent in Japan, Despite the Adverse Effects on Health?”, the 79th Annual Conference, Western Economic Association International, Vancouver, Canada, June 29-July 3, 2004.