Field of Research

1. Theoretical Analysis of International Trade (General Equilibrium Analysis of Comparative Advantage and the Gains from Trade, Theoretical Analysis of Strategic Trade Policies, and Applications of Spatial Economics to International Trade)

2. Microeconomics (Theoretical Analysis of the Behavior of Firms)

3.  Regional Economics (Empirical Analysis of Industrial Clusters)

Selected Publications
  • Production Structure and International Trade, Lecture Notes in Economics and Mathematical Systems, Springer-Verlag, Heiderberg, 1989.

  • The Production Possibility Set with Public Intermediate Goods, Econometrica, 48-4, 1980, 1005-1012. (Reprinted in, M. C. Kemp ed., Production Sets, Academic Press, New York, 1982)

  • Further Implications of Variable Returns to Scale, Journal of International Economics, 13-1/2, 1982, 65-84. (Written with H. Herberg and M. C, Kemp, Reprinted in, M. C. Kemp ed., Production Sets, Academic Press, New York,1982)

  • International trade with a Public Intermediate Good, Journal of International Economics, 15-1/2, 1983, 101-115. (Written with H. Okamoto)

  • Production Possibilities and International Trade with a Public Intermediate GoodCanadian Journal of Economics, 17-3, 1984, 232-248. (Written with K. Abe)

  • The World Production Frontier under Variable Returns to Scale, Journal of International Economics, 21-3/4, 1986, 251-268. (Written with M. C. Kemp)

  • Sharp Points in Production Surfaces, Oxford Economic Papers, 37-3, 1985, 375-381. (Written with M. C. Kemp and N. V. Long)

  • A General Equilibrium Analysis on Rate-of-Return Regulation, Journal of International and Comparative Economics, 3-2, 1994, 115-137. (Written with S.Katayama and M. Okawa) 

  • Trade and the Gains from Trade between Profit-Maximizing and Labour-Managed Countries with Imperfect Competition, Japanese Economic Review, 48-2, 1997, 226-238. (Written with S. Yabuuchi)

  • Environment, Trade and the Welfare Gains from the Transfer of Pollution Abatement Technology, Papers in Regional Science, 82-4, 2003, pp.519-534 (Written with Azusa Itoh)
  • International Trade with a Public Intermediate Good and the Gains from Trade, Review of International Economics, 15-2, 2007,284-293. (written with Nobuhito Suga)

  • The Economic Effects of Illegal Migration under the Minimum Wage Policy of a Source Country, Papers in Regional Science, 86-2, 2007, 321-331. (written with Shuqin Sun)

  • Endogenous Timing in a Strategic Trade Policy Game: A Two-Country Oligopoly Model with Multiple Firms, Review of Development Economics, 11-2, 2007, 275-290. (written with Yordying Supasri)

  • Optimal Trade Policies for Exporting Countries under the Stackelberg Type of Competition between Firms, Economics and Business Administration Journal, Vol.1, 2007, 17-22. (written with Yordying Supasri)

  • Disintegration of Production in the Global Economy: An Empirical Study Based on Input-Output Tables of Jiangsu Province in China, Studies in Regional Science, Vol.37, No.2, 2007, 359-373  (written with Zhibiao Liu, Fuxiang Wu)

  • Endogenous Sequencing of Trade Policies in a Three-Country Export Rivalry Model, Asia-African Journal of Economics and Econometrics, Vol.7, No.1-2, 2007, 279-287. (written with Ryoichi Nomura, Takao Ohkawa, Makoto Okamura)

  • Trade and the Environment: Spatial Separation under Product Differentiation, Quarterly Review of Economics and Finance, 2007, in Revision. (written with Nobuhito Suga)

  • The Employment Structure of the Development of the Service Industry in the Yangtze River Delta Area, mimeographed, 2008 (written with Xiaoshun Li, Panke Liang)

  • An Analysis of Urban Pollution and the Harris-Todaro Model, Mimeographed, 2008(written with Shuqin Sun)

  • A Two-Country Model of International Trade with Increasing Returns and Oligopoly, in B. Tran-Nam, Ngo Van Long, Makoto Tawada ed., Globalization and Emerging Issues in Trade Theory and Policy, Elsevier, 2008, forthcoming, (written with Kenji Fujiwara, Nobuhito Suga)

  • Environment and the Harris-Todaro Paradoxes, Mimeographed, 2008 (written with Azusa Nakamura)

  • On the Stability Condition on the Harris-Todaro Model with Natural Environment, Mimeographed, 2008.

  • A Two-Country Model of Oligopolistic Trade with External Economies of Scale Oligopoly, Mimeographed, 2008 (written with Kenji Fujiwara, Nobuhito Suga)

  • alization and Emerging Issues in Trade Theory and Policy, Elsevier, 2008,(in press)