Toshihiro Matsumura Home Page

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Most of my papers including resenct working papers are downlodable here.

announcement

EFifth International Workshop on Mixed Oligopolies will be held at Chukyo University, and Professor Yoshihiro Tomaru will organize it.
EFourth International Workshop on Mixed Oligopolies was held on 10/6 in 2018 at Chonnam National University in Korea, organized by Sang-Ho Lee.
EThird International Workshop on Mixed Oligopolies was held on 3/24 in 2018 at Institute of Social Science, The University of Tokyo, in Japan.

Citation Metrics, from Web of Science, Core Collection, Clarivate Analytics

Basic Data: Total Articles in Publication List=84, Sum of the Times Cited=1848, h-index=23 (From Social Science Citation Index in Web of Science Core Collection)
Ranked in most cited scientists in the field of Economics and Business March, 2014, July, 2019 (From Web of Science, Essential Science Indicators)

Citation Metrics, from Scopus, Elsevier,

Basic Date: Total Articles in Publication List=97, Sum of the Times Cited=2173, h-index=24
(This does not include my publications inb 1995 and before.)

Citation Metrics, from Google Scholar

Basic Data:Sum of the Times Cited=4153, h-index=33 (From Google Scholar)

Correspondence address

Institute of Social Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.

Research fields

Industrial Organization, Public Economics, Law and Economics, Regional Science

Work experience

Professor, Institute of Social Science, The University of Tokyo, April 2008 - Current
Associate Professor, Institute of Social Science, The University of Tokyo, October 1998 - March 2008
Associate Professor, Department of Social Engineering, Tokyo Institute of Technology, April 1996 - March 2001
Research Associate, Institute of Social and Economic Research, Osaka University, April 1994 - March 1996

Publications

dissertation

Doctoral dissertation ``Essays in Oligopoly with Endogenous Sequencing.'' (1996, The University of Tokyo)

Recent Discussion Papers

  1. The Relationship between Privatization and Corporate Taxation Policies, co-authored with Yi Liu and Chenhang Zeng
  2. Implicit Protectionism via State Enterprises and Technology Transfer from Foreign Enterprises, co-authored with Junichi Haraguchi
  3. Multiple Long-Run Equilibria in a Free-Entry Mixed Oligopoly, co-authored with Junichi Haraguchi
  4. Emission Cap Commitment versus Emission Intensity Commitment as Self-Regulation, co-authored with Kosuke Hirose
  5. Environmental Corporate Social Responsibility as a Collusive Device, co-authored with Sang-Ho Lee and Kosuke Hirose
  6. Firms' Costs, Profits, Entries, and Innovation under Optimal Privatization Policy , co-authored with Junichi Haraguchi
  7. Optimal Privatization Policy with Asymmetry among Private Firms, co-authored with Junichi Haraguchi
  8. Procurement of Advanced Technology and Welfare-Reducing Vertical Integration, co-authored with Sang-Ho Lee and Chul-Hi Park
  9. Shadow Cost of Public Funds and Privatization Policies , co-authored with Susumu Sato

articles in refereed journals

    Forthcoming Papers

  1. Shadow Cost of Public Funds and Privatization Policies.
    accepted by North American Journal of Economics and Finance (co-authored with Susumu Sato).
  2. The Equivalence of Emission Tax with Tax-Revenue Refund and Emission Intensity Regulation.
    Economics Letters, vol 182, September 2019, pp. 126-128 (co-authored with Hiroaki Ino).
  3. Asymmetry Among Private Firms and Optimal Privatization Policy.
    accepted by Bulletin of Economic Research (co-authored with Junichi Haraguchi).
  4. Mixed Duopoly: Differential Game Approach.
    Journal of Public Economic Theory, vol.21(4), August 2019, pp. 771-793 (co-authored with Koichi Futagami and Kizuku Takao).
  5. Optimal Production Tax in a Mixed Market with an Endogenous Market Structure.
    Manchester School, vol 87(4), pp. 578-590, July 2019 (co-authored with Susumu Cato).
  6. Corporate Social Responsibility and Privatization Policy in a Mixed Oligopoly.
    forthcoming in Journal of Economics (co-authored with Seung-Leul Kim and Sang-Ho Lee).
  7. Published Papers

    Microeconomics and Game Theory

  8. Welfare-Improving Effect of a Small Number of Followers in a Stackelberg Model,
    B.E. Journal of Theoretical Economics, vol. 16(1), pp. 243-265, 2016 (co-authored with Hiroaki Ino).
  9. How Many Firms Should Be Leaders? Beneficial Concentration Revisited,
    International Economic Review, vol. 53(4), pp. 1323-1340, 2012 (co-authored with Hiroaki Ino).
  10. Price Leadership in a Homogeneous Product Market,
    Journal of Economics, vol. 104(3), pp. 199-217, 2011 (co-authored with Daisuke Hirata).
  11. Collusion, Agglomeration, and Heterogeneity of Firms,
    Games and Economic Behavior, vol. 72(1), 306-313, 2011 (co-authored with Noriaki Matsushima).
  12. On the Uniqueness of Bertrand Equilibrium,
    Operations Research Letters, vol. 38(6), pp. 533-535, 2010 (co-authored with Daisuke Hirata).
  13. Market Structure, Corporate Social Responsibility, and Non-Profit-Maximizing Objections

  14. Environmental Corporate Ssocial Responsibility : A Note on the First-Mover Advantage Under Price Competition.
    Economics Bulletin, vol. 37(1), pp. 214-221, 2017 (co-authored with Sang-Ho Lee and Kosuke Hirose).
  15. Corporate Social Responsibility and Endogenous Competition Structure.
    Economics Bulletin, vol. 36(4), pp. 2117-2127, 2016 (co-authored with Akira Ogawa).
  16. Corporate Social Responsibility or Payoff Asymmetry?:A Study of an Endogenous Timing Game,
    Southern Economic Journal, vol. 81(2), pp. 457-473, 2014 (co-authored with Akira Ogawa).
  17. Competitiveness and R&D Competition Revisited,
    Economic Modelling, vol. 31(1), pp. 541-547, 2013. (co-authored with Susumu Cato and Noriaki Matsushima).
  18. Competitiveness and Stability of Collusive Behavior,
    Bulletin of Economic Research, vol. 64(s1), pp. s22-s31, 2012 (co-authored with Noriaki Matsushima).
  19. Mixed Oligopoly and Privatization of Public Enterprises

  20. Comparing Welfare and Profit in Quantity and Price Competition within Stackelberg Mixed Duopolies.
    Journal of Economics, vol. 126(1), pp. 75-93, 2019 (co-authored with Kosuke Hirose).
  21. Dynamic Privatization Policy.
    Manchester School, vol. 87(1), pp. 37-59, 2019 (co-authored with Susumu Sato)
  22. Optimal Privatization and Uniform Subsidy Policies: A Note.
    Journal of Public Economic Theory, vol. 20(3), pp. 416-423, 2018 (co-authored with Ming Hsin Lin).
  23. Government-Leading Welfare-Improving Collusion.
    International Review of Economics and Finance, vol. 56, pp. 363-370, 2018 (co-authored with Junichi Haraguchi).
  24. Competitive Pressure from Neighboring Markets and Optimal Privatization Policy.
    Japan and The World Economy, vol. 46, pp. 1-8, 2018 (co-authored with Junichi Haraguchi and Shohei Yoshida).
  25. An Analysis of Entry-then-Privatization Model: Welfare and Policy Implications.
    Journal of Economics, vol. 123(1), pp. 71-88, 2018 (co-authored with Sang-Ho Lee and Susumu Sato).
  26. Optimal Privatization Policy in Mixed Stackelberg Duopolies.
    Arthaniti: Journal of Economic Theory and Practice, vol. 17(1), pp. 1-14, 2018 (co-authored with Ming Hsin Lin).
  27. Endogenous Timing in Mixed Duopolies with Externality.
    Australian Economic Papers, vol. 56(4), pp. 304-327, 2017 (co-authored with Akira Ogawa).
  28. Inefficient but Robust Public Leadership.
    Journal of Industry, Competition and Trade, vol. 17(4), pp 387-398, 2017 (co-authored with Akira Ogawa).
  29. Privatization Neutrality Theorem in Free Entry Markets.
    B.E. Journal of Theoretical Economics, vol. 17(2), 2017 (co-authored with Yasunori Okumura).
  30. Ex-Ante versus Ex-Post Privatization Policies with Foreign Penetration in Free-Entry Mixed Markets.
    International Review of Economics and Finance, vol. 50, 1-7, 2017. (co-authored with Sang-Ho Lee and Lili Xu).
  31. Cournot-Bertrand Comparison in a Mixed Oligopoly,
    Journal of Economics, vol. 117(2), pp. 117-136, 2016 (co-authored with Junichi Haraguchi).
  32. Mixed Duopoly, Location Choice, and Shadow Cost of Public Funds,
    Southern Economic Journal, vol.82(2), pp. 416-429, 2015 (co-authored with Yoshihiro Tomaru).
  33. Competition and Privatization Policies Revisited: The Payoff Interdependence Approach,
    Journal of Economics, vol. 116(2), 137-150, 2015. (co-authored with Makoto Okamura).
  34. Optimal Privatization and Trade Policies with Endogenous Market Structure,
    Economic Record, vol. 91(294), 309--323, 2015. (co-authored with Susumu Cato).
  35. Price versus Quantity in a Mixed Duopoly with Foreign Penetration.
    Research in Economics, vol. 68(4), pp. 338-353, 2014. (co-authored with Junich Haraguchi).
  36. Mixed Duopoly, Product Differentiation, and Competition.
    Manchester School,vol. 81(5), pp. 730-744, 2013. (co-authored with Minoru Kitahara).
  37. Mixed Duopoly, Privatization, and Subsidization with Excess Burden of Taxation.
    Canadian Journal of Economics, vol. 46(2), pp. 526-554, 2013. (co-authored with Yoshihiro Tomaru).
  38. Long-Run Effects of Tax Policies in a Mixed Market.
    FinanzArchiv/Public Finance Analysis, vol. 69(2), pp. 215-240, 2013 (co-authored with Susumu Cato).
  39. Advertising Competition in a Mixed Oligopoly.
    Economics Letters, vol. 119(2), pp. 183-185, 2013. (co-authored Takeaki Sunada).
  40. Privatization Neutrality Theorem Revisited.
    Economics Letters, vol. 118(2), pp. 324-326, 2013. (co-authored Yasunori Okumura).
  41. Airport Privatization and International Competition.
    Japanese Economic Review, vol. 63(4), pp.431-450, 2012 (co-authored with Noriaki Matsushima).
  42. Long-Run Effects of Foreign Penetration on Privatization Policies.
    Journal of Institutional and Theoretical Economics, vol.168(3), pp. 444-454, 2012 (co-authored with Susumu Cato).
  43. Presence of Foreign Investors in Privatized Firms and Privatization Policy.
    Journal of Economics,vol. 107(1), pp.71-80, 2012 (co-authored with Ming Hsin Lin).
  44. Price versus Quantity in a Mixed Duopoly.
    Economics Letters, vol.116(2), pp. 174-177, 2012 (co-authored with Akira Ogawa).
  45. Market Structure and Privatization Policy under International Competition.
    Japanese Economic Review, vol. 63(2), pp. 244-258, 2012 (co-authored with Yoshihiro Tomaru).
  46. Welfare Consequences of an Asymmetric Regulation in Mixed Bertrand Duopoly.
    Economics Letters, vol. 115(1), pp. 94-96, 2012.
  47. Privatization Waves.
    Manchester School, vol. 78(6), pp. 609-625, 2010 (co-authored with Daisuke Shimizu).
  48. What Role Should Public Enterprises Play in Free-Entry Markets?
    Journal of Economics, vol. 101(3), pp. 213--230, 2010 (co-authored with Hiroaki Ino).
  49. On the Robustness of Private Leadership in Mixed Duopoly.
    Australian Economic Papers, vol. 49(2), pp. 149-160, 2010 (co-authored with Akira Ogawa).
  50. Privatization and Entries of Foreign Enterprises in a Differentiated Industry.
    Journal of Economics, vol. 98(3), pp. 203-220, 2009 (co-authored with Noriaki Matsushima and Ikuo Ishibashi).
  51. Mixed Oligopoly and Spatial Agglomeration in Quasi-Linear City.
    Economics Bulletin, vol. 29(4), pp. 2722-2729, 2009 (co-authored with Takeshi Ebina and Daisuke Shimizu).
  52. R&D Competition between Public and Private Sectors.
    European Economic Review, vol.50(6), pp. 1347-1366, 2006 (co-authored with Ikuo Ishibashi).
  53. Mixed Oligopoly, Foreign Firms, and Location Choice.
    Regional Science and Urban Economics, vol. 36(6), pp. 753-772, 2006 (co-authored with Noriaki Matsushima).
  54. Mixed Oligopoly at Free Entry Markets.
    Journal of Economics, vol. 84(1), pp. 27-48, 2005 (co-authored with Osamu Kanda).
  55. Endogenous Cost Differentials between Public and Private Enterprises: A Mixed Duopoly Approach.
    Economica, vol. 71(284), pp. 671-688, 2004 (co-authored with Noriaki Matsushima).
  56. Endogenous Role in Mixed Markets: A Two Production Period Model.
    Southern Economic Journal, vol. 70(2), pp. 403-413, 2003.
  57. Stackelberg Mixed Duopoly with a Foreign Competitor.
    Bulletin of Economic Research, vol. 55(3), pp. 275-287, 2003.
  58. Mixed Oligopoly and Spatial Agglomeration.
    Canadian Journal of Economics, vol. 36(1), pp. 62-87, 2003 (co-authored with Noriaki Matsushima).
  59. Mixed Duopoly with Product Differentiation: Sequential Choice of Location.
    Australian Economic Papers, vol. 42(1), pp. 18-34, 2003 (co-authored with Noriaki Matsushima).
  60. Partial Privatization in Mixed Duopoly.
    Journal of Public Economics, vol. 70(3), pp. 473-483, 1998.
  61. Anti-Trust, Economic Regulation and Public Policy in Oligopoly Markets

  62. Entry License Tax: Stackelberg versus Cournot,
    Journal of Institutional and Theoretical Economics, vol.175(2), pp. 258-271, 2019 (co-authored with Susumu Cato).
  63. A Negative Effect of Cost-Reducing Public Investment: The Role of Firms' Entry.
    Economic Record, vol. 95(308), pp. 81-89, 2019 (co-authored with Atsushi Yamagishi).
  64. Lobbying for Regulation Reform by Industry Leaders.
    Journal of Regulatory Economics, vol. 52(1), 2017, pp. 63-76. (co-authored with Atsushi Yamagishi).
  65. Long-Run Welfare Effect of Energy Conservation Regulation.
    Economics Letters, vol. 154, 64-68, 2017. (co-authored with Atsushi Yamagishi).
  66. Comparison between Specific Taxation and Volume Quotas in a Free Entry Cournot Oligopoly,
    Journal of Economics, vol. 113(2), pp. 125-132, 2014 (co-authored with Yasunori Okumura).
  67. Merger and Entry-License Tax.
    Economics Letters, vol. 119(1), pp. 11-13, 2013 (co-authored Susumu Cato).
  68. Congestion-Reducing Investments and Economic Welfare in a Hotelling Model.
    Economics Letters, vol. 96(2), pp. 161-167, 2007 (co-authored with Noriaki Matsushima).
  69. Tax Effects in a Model of Product Differentiation: A Note.
    Journal of Economics, vol. 89(1), pp.75-82, 2006 (co-authored with Minoru Kitahara).
  70. A Note on the Excess Entry Theorem in Spatial Markets.
    International Journal of Industrial Organization, vol. 24(5), pp. 1071-1076, 2006 (co-authored with Makoto Okamura).
  71. Equilibrium Number of Firms and Economic Welfare in a Spatial Price Discrimination Model.
    Economics Letters, vol. 90(3), pp. 396-401, 2006 (co-authored with Makoto Okamura).
  72. Cartel Stability in a Delivered Pricing Oligopoly.
    Journal of Economics, vol. 86(3), pp. 259-292, 2005 (co-authored with Noriaki Matsushima).
  73. Competition-Accelerating Public Investments.
    Australian Economic Papers, vol. 44(3), pp. 269-274, 2005.
  74. Strategic Complementarity in Direct Investments.
    Review of Development Economics, vol. 8(4), pp. 583-596, 2004.
  75. Consumer-Benefiting Exclusive Territories.
    Canadian Journal of Economics, vol. 36(4), pp. 1007-1025, 2003.
  76. Entry Regulation and Social Welfare with an Integer Problem.
    Journal of Economics (Zeitschrift für Nationalökonomie), vol. 71(1), pp. 47-58, 2000.
  77. Cournot Duopoly with Multi-period Competition: Inventory as a Coordination Device.
    Australian Economic Papers, vol. 38(3), pp. 189-202, 1999.
  78. R&D Competition, Technology Choice, and Network Externality

  79. Eco-Technology Licensing by a Foreign Innovator and Privatization Policy in a Polluting Mixed duopoly.
    Asia-Pacific Journal of Accounting and Economics, vol. 25(3-4), pp. 433-448, 2018 (co-authored with Seung-Leul Kim and Sang-Ho Lee).
  80. Welfare Properties of Strategic R&D Investments in Hotelling Models.
    Economics Letters, vol. 115(3), pp. 465-468, 2012 (co-authored with Noriaki Matsushima).
  81. Market Competition, R&D and Firm Profits in Asymmetric Oligopoly.
    Journal of Industrial Economics. vol. 59(3). pp. 484-505, 2011 (co-authored with Junichiro Ishida and Noriaki Matsushima).
  82. When Small Firms Fight back against Large Firms in R&D Activities.
    B.E. Journal of Economic Analysis & Policy, vol.10(1)(Topics), Article 81, 2010 (co-authored with Noriaki Matsushima).
  83. Location Equilibrium with Asymmetric Firms: the Role of Licensing.
    Journal of Economics, vol. 99(3), pp. 267-277, 2010 (co-authored with Noriaki Matsushima and Giorgos Stamatopoulos).
  84. Realized Cost Based Subsidies for Strategic R&D Investments with Ex Ante and Ex Post Asymmetries.
    Japanese Economic Review, vol. 57(3), pp. 438-448, 2006 (co-authored with Minoru Kitahara).
  85. Strategic R&D Investments with Uncertainty.
    Economics Bulletin, vol. 12(1), pp. 1-7, 2003.
  86. Endogenous Timing in the Switching of Technology with Marshallian Externalities.
    Journal of Economics (Zeitschrift für Nationalökonomie), vol. 63(1), pp. 41-56, 1996 (co-authored with Masako Ueda).
  87. Spatial Competition and Product Differentiation

  88. Locating Outside a Linear City Can Benefit Consumers.
    Journal of Regional Science, vol. 52(3), pp. 420.432, 2012 (co-authored with Noriaki Matsushima).
  89. Spatial Cournot Competition and Transportation Costs in a Circular City.
    Annals of Regional Science, vol. 48(1), pp. 33-44, 2012 (co-authored with Noriaki Matsushima).
  90. Spatial Cournot Equilibria in a Quasi-Linear City.
    Papers in Regional Science, 90(3), pp. 613-628, 2011 (co-authored with Takeshi Ebina and Daisuke Shimizu).
  91. Equilibrium Location and Economic Welfare in Delivered Pricing Oligopoly.
    Economics Bulletinvol. 29(2), pp. 761-769, 2009 (co-authored with Daisuke Shimizu).
  92. Cost Differentials and Mixed Strategy Equilibria in a Hotelling Model.
    Annals of Regional Science vol. 43(1), pp. 215-234, 2009 (co-authored with Noriaki Matsushima).
  93. Noncooperative Shipping Cournot Duopoly with Linear-Quadratic Transport Costs and Circular Space.
    Japanese Economic Review, vol. 59(4), pp. 498-518, 2008 (co-authored with Daisuke Shimizu).
  94. Cournot and Bertrand in Shipping Models with Circular Markets.
    Papers in Regional Science, vol. 85(4), pp. 585-598, 2006 (co-authored with Daisuke Shimizu).
  95. Spatial Cournot Competition and Economic Welfare: A Note.
    Regional Science and Urban Economics, vol. 35(6), pp. 658-670, 2005 (co-authored with Daisuke Shimizu).
  96. Partial Agglomeration or Dispersion in Spatial Cournot Competition.
    Southern Economic Journal, vol. 72(1), pp. 224-235, 2005 (co-authored with Takao Ohkawa and Daisuke Shimizu).
  97. Economic Welfare in Delivered Pricing Duopoly: Bertrand and Cournot.
    Economics Letters, vol. 89(1), pp. 112-119, 2005 (co-authored with Daisuke Shimizu).
  98. Equilibria for Circular Spatial Cournot Markets.
    Economics Bulletin, vol. 18(1), pp. 1-9, 2003 (co-authored with Daisuke Shimizu).
  99. Endogenous Timing in Oligopolies

  100. Randomized Strategy Equilibrium in the Action Commitment Game with Costs of Leading.
    Operations Research Letters, vol. 39(2), pp. 115-117, 2011 (co-authored with Takeshi Murooka and Okira Ogawa).
  101. Payoff Dominance and Risk Dominance in the Observable Delay Game: A Note.
    Journal of Economics
    , vol. 97(3), pp. 265-272, 2009 (co-authored with Akira Ogawa).
  102. Market Instability in a Stackelberg Duopoly.
    Journal of Economics (Zeitschrift für Nationalökonomie), vol. 75(3), pp. 199-210, 2002.
  103. Quantity-Setting Oligopoly with Endogenous Sequencing.
    International Journal of Industrial Organization, vol. 17(2), pp. 289-296, 1999.
  104. A Two-Stage Price-setting Duopoly: Bertrand or Stackelberg.
    Australian Economic Papers, vol. 37(2), pp. 103-118, 1998>.
  105. How Many Firms Become Leaders?.
    Australian Economic Papers, vol. 36, pp. 1-13, 1997.
  106. Two-stage Cournot Duopoly with Inventory Costs.
    Japanese Economic Review, vol. 48(1), pp. 81-89, 1997.
  107. Endogenous Timing in Cournot Duopoly Games.
    Proceedings of APORS'94, pp. 235-242, 1995.
  108. Endogenous Timing in Multi-stage Duopoly Games.
    Japanese Economic Review, vol. 46(3), pp. 257-265, 1995.
  109. Business Economics

  110. Payoff Interdependence and the Multi-Store Paradox,
    Asia-Pacific Journal of Accounting and Economics, vol. 23(3), 256-267, 2016. (co-authored with Kosuke Hirose).
  111. Should Firms Employ Personalized Pricing?
    Journal of Economics and Management Strategy, vol. 24(4). pp. 887-903, 2015 (co-authored with Noriaki Matsushima).
  112. Endogenous Flexibility in Flexible Manufacturing System.
    Bulletin of Economic Research, vol. 67(1), pp. 1-13, 2015. (co-authored with Daisuke Shimizu).
  113. Profit-Enhancing Parallel Imports.
    Open Economic Review vol. 21(3), 433-447, 2010 (co-authored with Noriaki Matsushima).
  114. Simultaneous Price Changes, Information Acquisition on Common Competitors, and Welfare.
    Australian Economic Papers, vol.47(4), pp. 389-395, 2008 (co-authored with Minoru Kitahara).
  115. Law and Economics

  116. Revelation of Private Information about Unpaid Notes in the Trade Credit Bill System in Japan.
    Journal of Legal Studies, vol. XXIV(1), pp. 165-187, 1995 (co-authored with Marc Ryser).

Unpublished Works

    Mixed Oligopoly and Privatization of Public Enterprises

  1. Anticompetitive Consequence of Nationalization of a Public Enterprise in Mixed Markets
  2. Endogenous Cost Differentials, Competitiveness in Mixed Markets, and the Privatization of Public Enterprises, co-authored with Noriaki Matsushima
  3. Firms' Costs, Profits, Entries, and Innovation under Optimal Privatization Policy , co-authored with Junichi Haraguchi
  4. Optimal Privatization Policy in Mixed Stackelberg Oligopolies, co-authored with Ming Hsin Lin
  5. Optimal Privatization Policy with Asymmetry among Private Firms, co-authored with Junichi Haraguchi
  6. Shadow Cost of Public Funds and Privatization Policies , co-authored with Susumu Sato
  7. Antitrust and Regulation

  8. Procurement of Advanced Technology and Welfare-Reducing Vertical Integration, co-authored with Sang-Ho Lee and Chul-Hi Park
  9. Environmental Corporate Social Responsibility as a Collusive Device, co-authored with Sang-Ho Lee and Kosuke Hirose
  10. Contestable Markets, Cream Skimming, and Multiple Potential Entrants, co-authored with Ikuo Ishibashi
  11. Regulated Input Price, Vertical Separation, and Leadership at Free Entry Markets, co-authored with Noriaki Matsushima
  12. Vertical Separation and Access Charge, co-authored with Noriaki Matsushima
  13. Spatial Competition

  14. Cost Uncertainty and Spatial Agglomeration (contimum choice version), co-authored with Noriaki Matsushima, the first version of the paper is written in 2002.
  15. Evolution of Competitive Equilibrium with Endogenous Product Differentiation, co-authored with Noriaki Matsushima and Tetsuo Yamamori
  16. Multiple Long-Run Equilibria in a Spatial Cournot Model and Welfare Implications, co-authored with Takanori Ago
  17. R&D, Lisencing, and Network Externality

  18. Steady R&D by Industry Leaders and Innovative R&D by Industry Followers, co-authored with Yasuhiro Arai
  19. Patent Licensing, Bargaining, and Product Positioning, co-authored with Noriaki Matsushima.

Academic Activities

Member, Science Council of Japan
Associate Editor, Journal of Economics
Associate Editor, Asia-Pacific Journal of Accounting and Economics
Associate Editor, Research in Economics
Member, Editorial Board, Papers in Regional Science

Experience of Government Committees and Advisory Boards

METI(Ministry of Economy, Trade and Industry)

Member, Procurement Price Calculation Committee
Member, Strategic Policiy Committee, Advisory Committee for Natural Resources and Energy.
Member, Electricity Systems Reform Subcommittee, Strategic Policiy Committee, Advisory Committee for Natural Resources and Energy.
Member, Electricity Supply-Demand Verification Subcommitte, Strategic Policiy Committee, Advisory Committee for Natural Resources and Energy.
Member, Subcommittee on the Establishment of Infrastructure for a Natural Gas Shift, Strategic Policiy Committee, Advisory Committee for Natural Resources and Energy.
Member, Market Monitoring Subcommittee, Strategic Policiy Committee, Advisory Committee for Natural Resources and Energy.
Member, Energy Efficiency and Conservation Subcommitte, Committee on Energy Efficiency and Renewble Energy, Advisory Committee for Natural Resources and Energy.
Member, WG on Classification Standards for Plants and Other Facilities, Energy Efficiency and Conservation Subcommitte, Committee on Energy Efficiency and Renewble Energy, Advisory Committee for Natural Resources and Energy
Member, Expert Committee on Reviewing Electricity Rate, Electricity and Gas Industry Committee, Advisory Committee for Natural Resources and Energy
Member, WG on Tendering Systems of Thermal Power, Expert Committee on Reviewing Electricity Rate, Electricity and Gas Industry Committee, Advisory Committee for Natural Resources and Energy
Member, WG for Reviewing the Accounting System Concerning the Decommissioning of Nuclear, Expert Committee on Reviewing Electricity Rate, Electricity and Gas Industry Committee, Advisory Committee for Natural Resources and Energy
Member, Advisory Council for Regulation of Electric Power Industry.
Member, Electric Power Industry Committee, Advisory Committee for Natural Resource and Energy.
Member, Committee to Nuclear Power, Electric Power Industry Committee, Advisory Committee for Natural Resource and Energy
Member, Subcommittee to Nuclear Power under Liberalization of Electricity Market, Committee to Nuclear Power Committee Electric Power Industry Committee, Advisory Committee for Natural Resource and Energy
Member, Subcommittee to Evaluate System Reform, Electric Power Industry Committee, Advisory Committee for Natural Resource and Energy
Member, Subcommittee to Evaluate System Reform, Gas Energy Committee, Advisory Committee for Natural Resource and Energy
Member, Subcommittee to Rule Formulation for Gas Energy Markets, Gas Energy Committee, Advisory Committee for Natural Resource and Energy
Member, Subcommittee to Renewable Energy Portfolio Standard, New Energy Committee, Advisory Committee for Natural Resource and Energy
Member, Subcommittee to Gas Policy, Gas Energy Committee, Advisory Committee for Natural Resource and Energy
Member, Subcommittee to Competition Policy, Committee of New Gross Policy, Advisory Committee for Industrial Structure
Member, WG of Energy Market, Subcommittee to Competition Policy, Committee of New Gross Policy, Advisory Committee for Industrial Structure
Member, WG of Institution and Practice for Gas Markets, Subcommittee to Gas Policy, Gas Energy Committee, Advisory Committee for Natural Resource and Energy
Member, WG of Fair Trade in Electricity Markets, Electric Power Industry Committee, Advisory Committee for Natural Resource and Energy
Member, WG of Fair Use of Electric System, Subcommittee to Basic Problem in Electric Power Industry, Electric Power Industry Committee, Advisory Committee for Natural Resource and Energy
Member, WG of Incentives for Investment in Nuclear Power, Electric Power Industry Committee, Advisory Committee for Natural Resource and Energy
Member, WG of Rule Formulation for Electric Power Markets, Electric Power Industry Committee, Advisory Committee for Natural Resource and Energy
Member, SG of Smart Mater
Member, SG of Smart Community
Member, SG of Water Powers in Electric Power Industry
Member, SG of Ultra Low Carbon Emission Society
Member, WG of Electric Power Fee in SG of Ultra Low Carbon Emission Society
Member, SG of Smart Mater of Electric Use
Member, SG of Study on Crude Oil Price
Member, WG of Study on Recent Flacutuation of Crude Oil Price in SG of Study on Crude Oil Price

Cabinet Office, Government of Japan

Member, Regulatory Reform Council
WG of Energy Regulation, Comittee of Regulation and Institution Reform, Government Revitalization Unit
Member, WG of Green Innovation, Comittee of Regulation and Institution Reform, Government Revitalization Unit
Member, WG of IT, Energy and Transportation, Council for the Promotion of Regulatory Reform

Cabinet Secretariat

Member, TEPCO Management and Finance Investigation Committee
Member, WG of Regulation Reform, IT Task Force

Fair Trade Commission

Member, SG on Regulation and Antitrust
SG on Cell Phone Industry

Ministry of Internal Affairs and Communications

Member, SG on Promotion ofIntensive Use and Development in Internet by IPv6.
Member, WG on the Problems in Access and ISP Business, SG on Promotion ofIntensive Use and Development in Internet by IPv6.
Member, SG on Price Cap and Regulation in Telecommunication
Member, SG on Internet Industry
Member, WG of Transition to IPv6 and Business of ISP, SG on Internet Industry
Member, SG on Neutrality of Network
Member, WG of Evaluation for Competition, SG on Neutrality of Network
Member, SG on Business Model of Network Industry

National Police Agency

Member, Committee of Inspection of Procurement
Member, Committee of Improvement of Administration

Ministry of Environment

Member, SG on Promotion of Low Emission Vehicles
Member, SG on Environmental Tax for Global Warming

Nuclear Damage Liability Facilitation Fund

Member, Management Committee

Electric Power System Council of Japan (ESCJ)

Member, Fair Use Committee

Organization for Cross-Regional Coordination of Transmission Operation, Japan (OCCTO)

Council Member
Member, Comittee of Capacity Payment
Member, Comittee of Operation of Interconnection and Area Transmission Lines
Member, Comittee of Electric Power Supply Reliability
Member, Comittee of Electoric Power Reserve Market

Japan Electric Power Exchange (JEPX)

Member, Special Committee on Promotion of Trading Volume

Workshops

ISS Industrial Organization Workshop