The below information is as of September 30, 2010. It may differ from the current information.



Faculty Fellow (until September 30, 2010)

Professor, Graduate School of Economics, Hitotsubashi University

Activities at RIETI


International Trade Theory, Applied Game Theory

Research Projects


1994 Ph.D. in Economics, University of Wisconsin-Madison
1989 M.A. in Economics, Hitotsubashi University
1987 B.A. in Economics, Hitotsubashi University


2005 Professor, Graduate School of Economics, Hitotsubashi University
2003 Associate Professor, Graduate School of Economics, Hitotsubashi University
1997 Associate Professor, Faculty of Economics, Yokohama National University  
1995 Associate Professor, Faculty of Economics, Fukushima University
1994 Lecturer, Department of Economics, Brandeis University

Selected Publications and Papers

Working Papers
“A Factor-Proportions Theory of Endogenous Firm Heterogeneity,” (with Hitoshi Sato), 2008.
"Contributing or Free-Riding? A Theory of Endogenous Lobby Formation," (with Hideo Konishi), 2008.
"Immediately Reactive Equilibria in Infinitely Repeated Games with Additively Separable Continuous Payoffs," (with Takashi Kamihigashi), 2006.
"Endogenous Present-Biasness and Policy Implementation," (with Edwin Lai), 2006.
"Threats and Promises in Tariff Settings,"(with Takashi Kamihigashi), 2005.
"A Unique Inefficient Equilibrium in a Bargaining with Perfect Information,"(with Quan Wen), 2003.
"Who's to Blame? Accusing Rivals of Dumping: Theory and Evidence,"(with Thomas Prusa), 2003.
"The Role of the WTO Dispute Settlement Procedure on International Cooperation,"2003.
"Trial and Error in R&D"1997.

Papers Published in Refereed Journals
“WTO as Moral Support,” Review of International Economics, 17, 2009, pp. 327-337.
"Gradual Cooperation in the Existence of Outside Options," (with Toshikazu Kawakami), Journal of Economic Behavior and Organization, 68, 2008, pp. 378-389.
"Tariff Revenue Competition in a Free Trade Area: The Case of Asymmetric Large Countries,"(with Naoto Jinji), Review of Economic Development, 11, 2007, pp. 300-312.
"Free Trade Networks,"(with Hideo Konishi), Journal of International Economics, 72, 2007, pp. 310-335.
"Free Trade Networks with Transfers," (with Hideo Konishi), Japanese Economic Review, 56, 2005, pp. 144-164.
"A Welfare Decomposition in Quasi-Linear Economies," (with Hideo Konishi), Economics Letters, 85, 2004, pp. 29-34.
"Tariffs versus Quotas in the Presence of Imperfect Competition and Cross-Border Externalities,"(with Keisaku Higashida and Jota Ishikawa), Canadian Journal of Economics, 37, 2004, pp. 445-458.
"What Information is Needed for Welfare-Enhancing Policies under International Oligopoly?"(with Keisaku Higashida and Jota Ishikawa), Japan and the World Economy, 15, 2003, pp. 31-46.
"Bargaining with Stochastic Disagreement Payoffs,"(with Quan Wen), International Journal of Game Theory, 31, 2002, pp. 571-591.
"Disagreement Points in Trade Negotiations,"(with Quan Wen), Journal of International Economics, 57, 2002, pp. 133-150.
"Preferential Trade Arrangements vs. Open Regionalism: A Theoretical Analysis of APEC," in Robert Stern, ed., Issues and Options for U.S.-Japan Trade Policies, University of Michigan Press, Ann Arbor, 2002, pp. 253-267.
"Flexibility of disagreement actions in negotiations,"(with Quan Wen), International Journal of Game Theory, 30, 2001, pp. 19-39.
"Strategic Delegation and Delay in Negotiations over the Bargaining Agenda,"(with Michael Conlin), Journal of Labor Economics, 18, 2000, pp. 55-73.
"The Negotiation of Sustainable Tariffs," Journal of International Economics, 48, 1999, pp. 321-346.
"Adjustment Costs and Gradual Trade Liberalization,"(with Edwin Lai), Journal of International Economics, 49, 1999, pp. 333-361.
"The Optimal Penal Code vs. Infinite Nash Reversion in Trade Liberalization," Review of International Economics, 7, 1999, pp. 673-681.