Staff

Koshi MAEDA　Professor, Ph.D.

Ⅰ．Reserch Themes

1. Quantitative economic models of imperfectly competitive markets
2. Quantitative economic analyses of agricultural support policies
3. Quantitative economic analyses of international agricultural negotiations

Ⅱ．Teaching

Undergraduate School:Microeconomics
　　　　　　　　　　　 Food Industrial Organization
Graduate School         :Advanced Quantitative Food Economic Analysis

Ⅲ．Selected Journal Articles

1. [1] Kim, Daum, Kohya Takahashi, and Koshi Maeda, "Effects of Health Claims on Demand Structure and Market Power: The Case of the Yogurt Market in Japan," Agribusiness: An International Journal, Early View.
2. [2] Jin, Shenghao, Koshi Maeda, and Kohya Takahashi, "Impact of trade liberalization on Japan’s two-way trade of beef," Journal of Rural Economics, Vol.95, No.1, June 2023, pp.1-17.
3. [3] Maeda, Koshi, "Welfare Analysis of Agricultural Trade Policies Using Spatial Equilibrium Model," Journal of Rural Economics, Vol.89, No.1, June 2017, pp.19-31.
4. [4] Takahashi, Kohya and Koshi Maeda, "Impacts of the TPP Agreement on Beef Demand in Japan: An Analysis by Class," Journal of Rural Economics, Vol.88, No.3, December 2016, pp.229-243.
5. [5] Maeda, Koshi, "Modeling the Price and Income Policies of Rice," Journal of Rural Economics, Vol.88, No.1, June 2016, pp.40-50.
6. [6] Wang, Xuejun, Koshi Maeda, Satoshi Hokazono, Nobuhiro Suzuki, and Harry M. Kaiser, "Measuring the Effects of a Sliding Scale Duty System on China’s Cotton Market: A Spatial Equilibrium Approach," Agribusiness: An International Journal, Vol.30, Iss:3, Summer 2014, pp.345-365.
7. [7] Maeda, Koshi, "Imperfect Competition and Its Tariff Equivalent in International Agricultural Markets," Journal of Rural Economics, Vol.85, No.2, September 2013, pp.116-121.
8. [8] Hokazono, Satoshi and Koshi Maeda, "Trade Effects of Ensuring Export Discipline through Parallelism: The Case of Skim Milk," Journal of Rural Economics, Vol.84, No.3, December 2012, pp.157-171.
9. [9] Maeda, Koshi, "Trade Distortion Effects of Average Crop Revenue Election Payment under the 2008 U.S. Farm Bill," Journal of Rural Economics, Vol.82, No.3, December 2010, pp.186-199.
10. [10] Maeda, Koshi and Hideyuki Kano, "Food Security and Market Stabilization through International Rice Reserve Stock: A Spatial Equilibrium Analysis," Journal of Rural Economics, Vol.79, No.4, March 2008, pp.199-216.
11. [11] Maeda, Koshi, "A Policy Simulation Model of International Trade under Imperfect Competition: A Spatial Equilibrium Analysis of International Wheat Trade by the Use of a Mixed Complementarity Problem," Journal of Rural Economics, Vol.73, No.3, December 2001, pp.119-132.
12. [12] Maeda, Koshi, "An Activity Analysis of Farm Households: A Nonparametric Estimation Method of Unknown Utility Function," Journal of Rural Economics, Vol.72, No.1, June 2000, pp.1-8.

Ⅳ．Awards

1. [1] Journal Article Prize of the Agricultural Economics Society of Japan，March 2024.
2. [2] Certificate of Appreciation from the Japan Society for the Promotion of Science，March 2023.
3. [3] Journal Article Prize of the Food, Agricultural and Resource Economic Society of Japan，September 2018.
4. [4] Journal Article Prize of the Food, Agricultural and Resource Economic Society of Japan，September 2017.
5. [5] Best Reviewer Award of KAKENHI, the Japan Society for the Promotion of Science, September 2017.
6. [6] Journal Article Prize of the Agricultural Economics Society of Japan，March 2017.
7. [7] Journal Article Prize of the Agricultural Economics Society of Japan，March 2013.
8. [8] Journal Article Prize of the Agricultural Economics Society of Japan，March 2002.

Kohya TAKAHASHI　Assistant Professor, Ph.D.

Ⅰ．Reserch Themes

1. Econometric analyses of demand in international agricultural markets

Ⅱ．Teaching

Undergraduate School:International Food Trade
Graduate School        :Advanced Microeconomics

Ⅲ．Selected Journal Articles

1. [1] Kim, Daum, Kohya Takahashi, and Koshi Maeda, "Effects of Health Claims on Demand Structure and Market Power: The Case of the Yogurt Market in Japan," Agribusiness: An International Journal, Early View.
2. [2] Jin, Shenghao, Koshi Maeda, and Kohya Takahashi, "Impact of trade liberalization on Japan’s two-way trade of beef," Journal of Rural Economics, Vol.95, No.1, June 2023, pp.1-17.
3. [3] Takahashi, Kohya, "Japan's Beef Demand Structure and Tariff Reduction Impact Mitigation by Beef Marukin," Japanese Journal of Food, Agricultural and Resource Economics, Vol.72, No.1, June 2021, pp.29-42.
4. [4] Takahashi, Kohya and Koshi Maeda, "Impacts of the TPP Agreement on Beef Demand in Japan: An Analysis by Class," Journal of Rural Economics, Vol.88, No.3, December 2016, pp.229-243.
5. [5] Takahashi, Kohya and Koshi Maeda, "An Econometric Analysis of Demand for Beef in Japan Using the Rational Habit Formation Model: Impact Analysis of Tariff Reduction by Class," Science Bulletin of the Faculty of Agriculture, Kyushu University, Vol.70, No.2, September 2015, pp.39-49.
6. [6] Takahashi, Kohya, Satoshi Hokazono, Koshi Maeda, and Hideyuki Kano, "The Effect of Exchange Rate Fluctuations on Export of Japanese Strawberry: The Case of Hong Kong Market," Agricultural Marketing Journal of Japan, Vol.22, No.1, June 2013, pp.31-36.
7. [7] Takahashi, Kohya, Satoshi Hokazono, and Koshi Maeda, "Export Expansion of Japanese Strawberry by Reducing Transport Cost: The Case of Hong Kong Market," Japanese Journal of Food, Agricultural and Resource Economics, Vol.63, No.2, October 2012, pp.1-10.

Ⅳ．Awards

1. [1] Journal Article Prize of the Agricultural Economics Society of Japan，March 2024.
2. [2] Journal Article Prize of the Food, Agricultural and Resource Economic Society of Japan，September 2018.
3. [3] Journal Article Prize of the Food, Agricultural and Resource Economic Society of Japan，September 2017.
4. [4] Journal Article Prize of the Agricultural Economics Society of Japan，March 2017.

Academic Researcher

Daum KIM (Republic of Korea), Ph.D.

Ⅰ．Reserch Themes

1. Empirical Industrial Organization Research of Functional Foods

Ⅱ．Selected Journal Articles

1. [1] Kim, Daum, Kohya Takahashi, and Koshi Maeda, "Effects of Health Claims on Demand Structure and Market Power: The Case of the Yogurt Market in Japan," Agribusiness: An International Journal, Early View.
2. [2] Kim, Daum, Kohya Takahashi, Koshi Maeda, "Problems in Empirical Industrial Organization of Functional Foods," Journal of the Faculty of Agriculture, Kyushu University, Vol.78, No.1, Feburuary 2023, pp.15-24.
3. [3] Kim, Daum, Kohya Takahashi, Koshi Maeda, "The Demand Structure and Market Power of Green Tea Beverages in Japan: BLP Approach," Journal of Food System Research, Vol.28, No.2, September 2021, pp.71-87.

Successive Professors

1st  The late Dr. Shujiro SAWADA (Emeritus professor)

2nd The late Dr. Keizo TSUCHIYA (Emeritus professor)

3rd Dr. Tsunemasa KAWAGUCHI (Emeritus professor)

4th Dr. Nobuhiro SUZUKI (The incumbent professor of the University of Tokyo)

5th The late Dr. Taiji YOSHIDA