Toshihiro Matsumura Home Page

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・Most of my papers including resenct working papers are downlodable here.
・Our institute has troubles in email system. At least 10, may be more, emails have not reach me. Sorry for the inconvinience.

announcement

・Fifth International Workshop on Mixed Oligopolies was held on 11/2 in 2019 at Chukyo University, organized by Yoshihiro Tomaru.
・Fourth International Workshop on Mixed Oligopolies was held on 10/6 in 2018 at Chonnam National University in Korea, organized by Sang-Ho Lee.
・Third 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

Total Articles in Publication List=114, Sum of the Times Cited=3351, h-index=31 (From Social Science Citation Index)
Ranked in most cited scientists in the field of Economics and Business March, 2014, July, 2019 (From Essential Science Indicators)

From Scopus, Elsevier

Total Articles in Publication List=121, Sum of the Times Cited=3722, h-index=32

From Google Scholar

Sum of the Times Cited=6449, h-index=42

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, Environmental and Energy 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. Market transparency in a mixed oligopoly, co-authored with Lili Xu
  2. Welfare effects of common ownership in an international duopoly, co-authored with Yi Liu
  3. Tax versus Regulations: Robustness to Polluter Lobbying Against Near-Zero Emission Targets, co-authored with Kosuke Hirose and Akifumi Ishihara
  4. Common ownership among private firms and privatization policies, co-authored with Junichi Haraguchi
  5. Flexible privatization policy in free-entry markets, co-authored with Susumu Sato
  6. Firms' Costs, Profits, Entries, and Innovation under Optimal Privatization Policy , co-authored with Junichi Haraguchi

articles in refereed journals

    Forthcoming Papers

  1. Welfare effects of common ownership in an international duopoly,
    accepted by Canadian Journal of Economics (co-authored with Yi Liu).
    This is the revised version of our DP
  2. Welfare consequence of common ownership in a vertically related market,
    accepted by Journal of Industrial Economics (co-authored with Linfeng Chen and Chenhang Zeng).

    3. Published Papers in 2023

  3. Green transformation in oligopoly markets under common ownership,
    Energy Economics 126, 106892 October 2023 (co-authored with Kosuke Hirose).
    This is the revised version of our DP
  4. Common ownership in a delivered pricing duopoly.
    Journal of Economics 139(3), 191-208, August 2023 (co-authored with Nuowen Bai).
  5. Competition mode and common ownership in a mixed oligopoly,
    Manchester School, vol. 91(4), 306-319, July 2023 (co-authored with Lili Xu and Yidan Zhang)
    This is the revised version of our DP entitled `Cournot–Bertrand comparison under common ownership in a mixed oligopoly'

    6. Published Papers in 2022

  6. Common ownership and environmental corporate social responsibility,
    Energy Economics, vol. 114, 106269, October 2022 (co-authored with Kosuke Hirose).
    This is the revised version of our DP
  7. Welfare-reducing price competition under relative performance delegation with convex costs,
    Economic Modelling, vol. 112, 105871, July 2022 (co-authored with Lili Xu).
  8. Market competition and strategic choices of electric power sources under fluctuating demand,
    Resource and Energy Economics, vol. 68, 101280, May 2022 (co-authored with Hiroaki Ino and Norimichi Matsueda).
    This is the revised version of our DP
  9. Procurement of advanced inputs and welfare-reducing vertical integration,
    Journal of Economics vol. 135(1), 255–283, April 2022 (co-authored with Chul-Hi Park and Sang-Ho Lee).
    This is the revised version of our DP
  10. Free entry under an output-cap constraint,
    Economics Letters vol. 210, 110192, January 2022 (co-authored with Hiroaki Ino).
    This is the revised version of our DP

    Published Papers before 2022

    Microeconomics and Game Theory

  11. Free entry under common ownership ,
    Economics Letters, vol. 195, 109489, October 2020 (co-authored with Susumu Sato).
    This is the revised version of our DP
  12. 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, January 2016 (co-authored with Hiroaki Ino).
  13. How many firms should be leaders? Beneficial concentration revisited,
    International Economic Review vol. 53(4), pp. 1323-1340, 2012 (co-authored with Hiroaki Ino).
  14. Price leadership in a homogeneous product market,
    Journal of Economics vol. 104(3), pp. 199-217, 2011 (co-authored with Daisuke Hirata).
  15. Collusion, agglomeration, and heterogeneity of firms,
    Games and Economic Behavior vol. 72(1), 306-313, May 2011 (co-authored with Noriaki Matsushima).
  16. On the uniqueness of Bertrand equilibrium,
    Operations Research Letters, vol. 38(6), pp. 533-535, 2010 (co-authored with Daisuke Hirata).

    17. Environmental and Energy Economics

  17. Optimality of emission pricing policies based on emission intensity targets under imperfect competition,
    Energy Economics vol. 98, 105238, June 2021 (co-authored with Hiroaki Ino)
    This is the revised version of our DP
  18. Promoting green or restricting gray? An analysis of green portfolio standards,
    Economics Letters vol. 198, 109650, January 2021 (co-authored with Hiroaki Ino)
    This is the revised version of our DP
  19. A comparison between emission intensity and emission cap regulations,
    Energy Policy vol. 137, February 2020, 111115 (co-authored with Kosuke Hirose).
  20. The equivalence of emission tax with tax-revenue refund and emission intensity regulation.
    Economics Letters vol 182, pp. 126-128, September 2019 (co-authored with Hiroaki Ino).
  21. Long-run welfare effect of energy conservation regulation.
    Economics Letters vol. 154, 64-68, May 2017. (co-authored with Atsushi Yamagishi).

    22. Market Structure, Corporate Social Responsibility, and Non-Profit-Maximizing Objections

  22. Noncooperative and cooperative environmental corporate social responsibility,
    Journal of Institutional and Theoretical Economics vol. 176(3), pp. 549-571, September 2020 (co-authored with Kosuke Hirose and Sang-Ho Lee).
    This is the revised version of our earlier work entitled
    ``Environmental Corporate Social Responsibility as a Collusive Device''
  23. Corporate social responsibility and privatization policy in a mixed oligopoly.
    Journal of Economics vol. 128(1), pp. 67-89, September 2019 (co-authored with Seung-Leul Kim and Sang-Ho Lee).
  24. Environmental corporate social 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).
  25. Corporate social responsibility and endogenous competition structure.
    Economics Bulletin vol. 36(4), pp. 2117-2127, 2016 (co-authored with Akira Ogawa).
  26. Corporate social responsibility or payoff asymmetry?: A study of an endogenous timing game,
    Southern Economic Journal, vol. 81(2), pp. 457-473, October 2014 (co-authored with Akira Ogawa).
  27. Competitiveness and R&D competition revisited,
    Economic Modelling vol. 31(1), pp. 541-547, March 2013 (co-authored with Susumu Cato and Noriaki Matsushima).
  28. Competitiveness and stability of collusive behavior,
    Bulletin of Economic Research vol. 64(s1), pp. s22-s31, April 2012 (co-authored with Noriaki Matsushima).

    29. Mixed Oligopoly and Privatization of Public Enterprises

  29. Profit-enhancing entries in mixed oligopolies,
    Southern Economic Journal vol 88(1), pp. 33-55, July 2021 (co-authored with Junichi Haraguchi)
    This is the revised version of our DP
  30. Endogenous public and private leadership with diverging social and private marginal costs,
    Manchester School vol 88(5), pp. 699-730, September 2020 (co-authored with Junichi Haraguchi).
    This is the revised version of our DP
  31. The relationship between privatization and corporate taxation policies,
    Journal of Economics, vol. 133(1), pp. 85-101, June 2021(co-authored with Yi Liu and Chenhang Zeng)
  32. Implicit protectionism via state enterprises and technology transfer from foreign enterprises,
    Review of International Economics, vol 28(3), pp. 723-743, August 2020 (co-authored with Junichi Haraguchi).
  33. Optimal privatization policy with asymmetry among private firms,
    Bulletin of Economic Research vol. 72(3), pp. 213-224, July 2020 (co-authored with Junichi Haraguchi).
  34. Lack of commitment to future privatization policies may lead to worst welfare outcome,
    Economic Modelling vol. 88, pp. 181-187, June 2020 (co-authored with Junich Haraguchi).
    This is the revised version of our earlier work (discussion paper) entitled
    ``Multiple long-run equilibria in a free-entry mixed oligopoly''
  35. Shadow cost of public funds and privatization policies.
    North American Journal of Economics and Finance, vol 50, November 2019, 101026 (co-authored with Susumu Sato).
  36. Mixed duopoly: Differential game approach.
    Journal of Public Economic Theory vol.21(4), pp. 771-793, August 2019 (co-authored with Koichi Futagami and Kizuku Takao).
  37. 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).
  38. Comparing welfare and profit in quantity and price competition within Stackelberg mixed duopolies.
    Journal of Economics vol. 126(1), pp. 75-93, January 2019 (co-authored with Kosuke Hirose).
  39. Dynamic privatization policy.
    Manchester School vol. 87(1), pp. 37-59, January 2019 (co-authored with Susumu Sato)
  40. Optimal privatization and uniform subsidy policies: A note.
    Journal of Public Economic Theory vol. 20(3), pp. 416-423, August 2018 (co-authored with Ming Hsin Lin).
  41. Government-Leading Welfare-Improving Collusion.
    International Review of Economics and Finance, vol. 56, pp. 363-370, July 2018 (co-authored with Junichi Haraguchi).
  42. Competitive pressure from neighboring markets and optimal privatization policy.
    Japan and The World Economy, vol. 46, pp. 1-8, June 2018 (co-authored with Junichi Haraguchi and Shohei Yoshida).
  43. An analysis of entry-then-privatization model: Welfare and policy implications.
    Journal of Economics vol. 123(1), pp. 71-88, January 2018 (co-authored with Sang-Ho Lee and Susumu Sato).
  44. 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).
  45. Endogenous timing in mixed duopolies with externality.
    Australian Economic Papers vol. 56(4), pp. 304-327, December 2017 (co-authored with Akira Ogawa).
  46. Inefficient but robust public leadership.
    Journal of Industry, Competition and Trade vol. 17(4), pp 387-398, 2017 (co-authored with Akira Ogawa).
  47. Privatization neutrality theorem in free entry markets.
    B.E. Journal of Theoretical Economics vol. 17(2), June 2017 (co-authored with Yasunori Okumura).
  48. Ex-ante versus ex-post privatization policies with foreign penetration in free-entry mixed markets.
    International Review of Economics and Finance vol. 50, pp. 1-7, July 2017 (co-authored with Sang-Ho Lee and Lili Xu).
  49. Cournot-Bertrand Comparison in a Mixed Oligopoly,
    Journal of Economics, vol. 117(2), pp. 117-136, August 2016 (co-authored with Junichi Haraguchi).
  50. Mixed duopoly, location choice, and shadow cost of public funds,
    Southern Economic Journal vol.82(2), pp. 416-429, October 2015 (co-authored with Yoshihiro Tomaru).
  51. Competition and privatization policies revisited: The payoff interdependence approach,
    Journal of Economics vol. 116(2), pp. 137-150, October 2015. (co-authored with Makoto Okamura).
  52. Optimal privatization and trade policies with endogenous market structure,
    Economic Record vol. 91(294), pp. 309-323, September 2015. (co-authored with Susumu Cato).
  53. Price versus quantity in a mixed duopoly with foreign penetration.
    Research in Economics vol. 68(4), pp. 338-353, December 2014. (co-authored with Junich Haraguchi).
  54. Mixed duopoly, product differentiation, and competition.
    Manchester School vol. 81(5), pp. 730-744, September 2013. (co-authored with Minoru Kitahara).
  55. Mixed duopoly, privatization, and subsidization with excess burden of taxation.
    Canadian Journal of Economics, vol. 46(2), pp. 526-554, May 2013. (co-authored with Yoshihiro Tomaru).
  56. Long-run effects of tax policies in a mixed market.
    FinanzArchiv/Public Finance Analysis vol. 69(2), pp. 215-240, June 2013 (co-authored with Susumu Cato).
  57. Advertising competition in a mixed oligopoly.
    Economics Letters vol. 119(2), pp. 183-185, May 2013. (co-authored Takeaki Sunada).
  58. Privatization neutrality theorem revisited.
    Economics Letters vol. 118(2), pp. 324-326, February 2013. (co-authored Yasunori Okumura).
  59. Airport privatization and international competition,
    Japanese Economic Review vol. 63(4), pp.431-450, January 2012 (co-authored with Noriaki Matsushima).
  60. Long-run effects of foreign penetration on privatization policies.
    Journal of Institutional and Theoretical Economics vol.168(3), pp. 444-454, June 2012 (co-authored with Susumu Cato).
  61. 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).
  62. Price versus quantity in a mixed duopoly.
    Economics Letters vol.116(2), pp. 174-177, August 2012 (co-authored with Akira Ogawa).
  63. Market structure and privatization policy under international competition.
    Japanese Economic Review vol.63(2), pp. 244-258, June 2012 (co-authored with Yoshihiro Tomaru).
  64. Welfare consequences of an asymmetric regulation in mixed Bertrand duopoly.
    Economics Letters vol. 115(1), pp. 94-96, 2012.
  65. Privatization Waves.
    Manchester School, vol. 78(6), pp. 609-625, December 2010 (co-authored with Daisuke Shimizu).
  66. What role should public enterprises play in free-entry markets?
    Journal of Economics vol. 101(3), pp. 213-230, November 2010 (co-authored with Hiroaki Ino).
  67. On the robustness of private leadership in mixed duopoly.
    Australian Economic Papers vol. 49(2), pp. 149-160, 2010 (co-authored with Akira Ogawa).
  68. Privatization and entries of foreign enterprises in a differentiated industry.
    Journal of Economics vol. 98(3), pp. 203-220, December 2009 (co-authored with Noriaki Matsushima and Ikuo Ishibashi).
  69. 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).
  70. R&D competition between public and private sectors.
    European Economic Review vol.50(6), pp. 1347-1366, August 2006 (co-authored with Ikuo Ishibashi).
  71. Mixed oligopoly, foreign firms, and location choice.
    Regional Science and Urban Economics vol. 36(6), pp. 753-772, November 2006 (co-authored with Noriaki Matsushima).
  72. Mixed oligopoly at free entry markets.
    Journal of Economics vol. 84(1), pp. 27-48, February 2005 (co-authored with Osamu Kanda).
  73. 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).
  74. Endogenous role in mixed markets: A two production period model.
    Southern Economic Journal vol. 70(2), pp. 403-413, October 2003.
  75. Stackelberg Mixed Duopoly with a Foreign Competitor.
    Bulletin of Economic Research, vol. 55(3), pp. 275-287, 2003.
  76. Mixed oligopoly and spatial agglomeration.
    Canadian Journal of Economics vol. 36(1), pp. 62-87, March 2003 (co-authored with Noriaki Matsushima).
  77. Mixed duopoly with product differentiation: Sequential choice of location.
    Australian Economic Papers vol. 42(1), pp. 18-34, March 2003 (co-authored with Noriaki Matsushima).
  78. Partial Privatization in Mixed Duopoly.
    Journal of Public Economics, vol. 70(3), pp. 473-483, December 1998.

    79. Anti-Trust, Economic Regulation and Public Policy in Oligopoly Markets

  79. Entry license tax: Stackelberg versus Cournot,
    Journal of Institutional and Theoretical Economics vol.175(2), pp. 258-271, June 2019 (co-authored with Susumu Cato).
  80. 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).
  81. Lobbying for Regulation Reform by Industry Leaders.
    Journal of Regulatory Economics, vol. 52(1), pp. 63-76, August 2017. (co-authored with Atsushi Yamagishi).
  82. Comparison between specific taxation and volume quotas in a free entry Cournot oligopoly,
    Journal of Economics vol. 113(2), pp. 125-132, October 2014 (co-authored with Yasunori Okumura).
  83. Merger and entry-license tax.
    Economics Letters vol. 119(1), pp. 11-13, 2013 (co-authored Susumu Cato).
  84. Congestion-reducing investments and economic welfare in a Hotelling model.
    Economics Letters vol. 96(2), pp. 161-167, 2007 (co-authored with Noriaki Matsushima).
  85. 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).
  86. A note on the excess entry theorem in spatial markets.
    International Journal of Industrial Organization vol. 24(5), pp. 1071-1076, September 2006 (co-authored with Makoto Okamura).
  87. 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).
  88. Cartel stability in a delivered pricing oligopoly.
    Journal of Economics vol. 86(3), pp. 259-292, December 2005 (co-authored with Noriaki Matsushima).
  89. Competition-accelerating public investments.
    Australian Economic Papers vol. 44(3), pp. 269-274, September 2005.
  90. Strategic complementarity in direct investments.
    Review of Development Economics vol. 8(4), pp. 583-596, 2004.
  91. Consumer-benefiting exclusive territories.
    Canadian Journal of Economics vol. 36(4), pp. 1007-1025, November 2003.
  92. Entry regulation and social welfare with an integer problem.
    Journal of Economics (Zeitschrift für Nationalökonomie) vol. 71(1), pp. 47-58, February 2000.
  93. Cournot duopoly with multi-period competition: Inventory as a coordination device.
    Australian Economic Papers vol. 38(3), pp. 189-202, 1999.

    94. R&D Competition, Technology Choice, and Network Externality

  94. 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, May 2018 (co-authored with Seung-Leul Kim and Sang-Ho Lee).
  95. Welfare properties of strategic R&D investments in Hotelling models.
    Economics Letters vol. 115(3), pp. 465-468, 2012 (co-authored with Noriaki Matsushima).
  96. 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).
  97. 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).
  98. 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).
  99. 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, September 2006 (co-authored with Minoru Kitahara).
  100. Strategic R&D investments with uncertainty.
    Economics Bulletin vol. 12(1), pp. 1-7, June 2003.
  101. Endogenous timing in the switching of technology with Marshallian externalities.
    Journal of Economics (Zeitschrift für Nationalökonomie) vol. 63(1), pp. 41-56, February 1996 (co-authored with Masako Ueda).

    102. Spatial Competition and Product Differentiation

  102. Locating outside a linear city can benefit consumers.
    Journal of Regional Science vol. 52(3), pp. 420.432, 2012 (co-authored with Noriaki Matsushima).
  103. 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).
  104. Spatial Cournot equilibria in a quasi-linear city.
    Papers in Regional Science 90(3), pp. 613-628, August 2011 (co-authored with Takeshi Ebina and Daisuke Shimizu).
  105. Equilibrium location and economic welfare in delivered pricing oligopoly.
    Economics Bulletinvol. 29(2), pp. 761-769, 2009 (co-authored with Daisuke Shimizu).
  106. Cost differentials and mixed strategy equilibria in a Hotelling model.
    Annals of Regional Science vol. 43(1), pp. 215-234, March 2009 (co-authored with Noriaki Matsushima).
  107. Noncooperative shipping Cournot duopoly with linear-quadratic transport costs and circular space.
    Japanese Economic Review vol. 59(4), pp. 498-518, December 2008 (co-authored with Daisuke Shimizu).
  108. 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).
  109. Spatial Cournot competition and economic welfare: A note.
    Regional Science and Urban Economics vol. 35(6), pp. 658-670, November 2005 (co-authored with Daisuke Shimizu).
  110. Partial agglomeration or dispersion in spatial Cournot competition.
    Southern Economic Journal, vol. 72(1), pp. 224-235, July 2005 (co-authored with Takao Ohkawa and Daisuke Shimizu).
  111. Economic welfare in delivered pricing duopoly: Bertrand and Cournot.
    Economics Letters vol. 89(1), pp. 112-119, 2005 (co-authored with Daisuke Shimizu).
  112. Equilibria for circular spatial Cournot markets.
    Economics Bulletin vol. 18(1), pp. 1-9, 2003 (co-authored with Daisuke Shimizu).

    113. Endogenous Timing in Oligopolies

  113. 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).
  114. Payoff dominance and risk dominance in the observable delay game: A note.
    Journal of Economics     vol. 97(3), pp. 265-272, July 2009 (co-authored with Akira Ogawa).
  115. Market instability in a Stackelberg duopoly.
    Journal of Economics (Zeitschrift für Nationalökonomie) vol. 75(3), pp. 199-210, April 2002.
  116. Quantity-setting oligopoly with endogenous sequencing.
    International Journal of Industrial Organization vol. 17(2), pp. 289-296, February 1999.
  117. A Two-Stage Price-setting Duopoly: Bertrand or Stackelberg.
    Australian Economic Papers, vol. 37(2), pp. 103-118, June 1998.
  118. How many firms become leaders?.
    Australian Economic Papers, vol. 36, pp. 1-13, June 1997.
  119. Two-stage Cournot duopoly with inventory costs.
    Japanese Economic Review vol. 48(1), pp. 81-89, January 1997.
  120. Endogenous timing in Cournot duopoly games.
    Proceedings of APORS'94, pp. 235-242, 1995.
  121. Endogenous timing in multi-stage duopoly games.
    Japanese Economic Review vol. 46(3), pp. 257-265, September 1995.

    122. Business Economics

  122. Payoff interdependence and the multi-store paradox,
    Asia-Pacific Journal of Accounting and Economics vol. 23(3), 256-267, July 2016. (co-authored with Kosuke Hirose).
  123. Should firms employ personalized pricing?
    Journal of Economics and Management Strategy vol. 24(4). pp. 887-903, october 2015 (co-authored with Noriaki Matsushima).
  124. Endogenous flexibility in flexible manufacturing system.
    Bulletin of Economic Research vol. 67(1), pp. 1-13, January 2015. (co-authored with Daisuke Shimizu).
  125. Profit-enhancing parallel imports.
    Open Economic Review vol. 21(3), 433-447, July 2010 (co-authored with Noriaki Matsushima).
  126. Simultaneous price changes, information acquisition on common competitors, and welfare.
    Australian Economic Papers vol.47(4), pp. 389-395, December 2008 (co-authored work with Minoru Kitahara).

    127. Law and Economics

  127. 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, January 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. Antitrust and Regulation

  5. Contestable Markets, Cream Skimming, and Multiple Potential Entrants, co-authored with Ikuo Ishibashi
  6. Regulated Input Price, Vertical Separation, and Leadership at Free Entry Markets, co-authored with Noriaki Matsushima
  7. Vertical Separation and Access Charge, co-authored with Noriaki Matsushima

    8. Spatial Competition

  8. Cost Uncertainty and Spatial Agglomeration (contimum choice version), co-authored with Noriaki Matsushima, the first version of the paper is written in 2002.
  9. Evolution of Competitive Equilibrium with Endogenous Product Differentiation, co-authored with Noriaki Matsushima and Tetsuo Yamamori
  10. Multiple Long-Run Equilibria in a Spatial Cournot Model and Welfare Implications, co-authored with Takanori Ago

    11. R&D, Lisencing, and Network Externality

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

Academic Activities

Associate Editor, Journal of Economics
Associate Editor, Asia-Pacific Journal of Accounting and Economics
Associate Editor, Economic Modelling
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