Research

Takeshi Ebina

Google Scholar Citations:

• Takeshi Ebina

Doctoral Dissertation:

• • ``Essays on Product Differentiation.'' (Tokyo Institute of Technology, March, 2010)

Refereed Articles:

• 1. Sequential Product Positioning and Entry Timing under Differential Costs in a Continuous-Time Model, Takeshi Ebina and Katsumasa Nishide, Annals of Operations Research,  Vol.332, Issue 1-3, pp.277-301, 2024.  

  2. Paradox of Choice and Sharing Personal Information, Takeshi Ebina and Keita Kinjo, with Keita Kinjo, AI & Society, Vol.38, Issue 1, pp. 121-132, 2023. 

  3. Hostile Takeovers or Friendly Mergers? A Real Options Analysis, Takeshi Ebina, Yuya Kumakura and Katsumasa Nishide, Journal of Corporate Finance, Vol.77, 102292, 2022.

  4. Demand Uncertainty, Product Differentiation, and Entry Timing under Spatial Competition, Takeshi Ebina, Noriaki Matsushima and Katsumasa Nishide, European Journal of Operational Research, Vol.303, Issue 1, pp. 286-297, 2022.

  5. Applying the peak-end Rule among Similar Products: A Case-based Decision Approach, Keita Kinjo and Takeshi Ebina, Expert Systems, Vol.38, Issue 8, e12763, 2021. 

  6. Approaching the Social Dilemma of Autonomous Vehicles with a General Social Welfare Function, Takeshi Ebina and Keita Kinjo, Engineering Applications of Artificial Intelligence, Vol.104, 104390, 2021. 

  7. Sequential Mergers and Competition Policy under Partial Privatization, Takeshi Ebina and Daisuke Shimizu, Australian Economic Papers, Vol.58, Issue 4, pp. 375-397, 2019.

  8. Consumer Confusion from Price Competition and Excessive Product Attributes under the Curse of Dimensionality, Takeshi Ebina and Keita Kinjo, AI & Society, Vol.34, Issue 3, pp.615-624, 2019.  

  9. Case-based Decision Model Matches Ideal Point Model: Application to Marketing Decision Support System, Keita Kinjo and Takeshi Ebina, Journal of Intelligent Information Systems, Vol.50, Issue 2, pp.341-362, 2018.

  10. Optimal Program for Autonomous Driving under Bentham- and Nash-type Social Welfare Functions, Keita Kinjo and Takeshi Ebina, Procedia Computer Science, Elsevier, Conference Proceedings, Vol. 121, pp.61-70, 2017.

  11. Endogenous Product Boundary (A previous version, "Option Package Bundling"), Takanori Adachi, Takeshi Ebina and Makoto Hanazono, Manchester School, Vol. 81, Issue 1, pp. 13-40, 2017.

  12. An Advertising Strategy using Consumption Externality and Forgetting in the Case of Japanese Electronic Books, Keita Kinjo and Takeshi Ebina, Review of Socionetwork Strategies, Vol. 10, Issue 2, pp.55-71, 2016.

  13. Sequential Mergers under General Symmetric Product Differentiation with Four Firms, Takeshi Ebina and Daisuke Shimizu, Asia-Pacific Journal of Accounting & Economics, Vol. 23, Issue 3 (Special Issue: Oligopoly Theory. Guest editor: Toshihiro Matsumura), pp.306-326, 2016. 

  14. Log-Linear Demand Systems with Differentiated Products are Inconsistent with the Representative Consumer Approach, with Takanori Adachi and Takeshi Ebina, Economics Bulletin, Vol. 36, No. 1, pp. 260-267, 2016.

  15. Product Differentiation and Entry Timing in a Continuous Time Spatial Competition Model, Takeshi Ebina, Noriaki Matsushima and Daisuke Shimizu, European Journal of Operational Research, Vol.247, Issue 3, pp.904-913, 2015. 

  16. Paradox of Choice and Consumer Nonpurchase Behavior, Keita Kinjo and Takeshi Ebina, AI & Society, Vol.30, Number 2, pp.291-297, 2015.  

  17. State-Dependent Choice Model for TV Programs with Externality: Analysis of Viewing Behavior, Keita Kinjo and Takeshi Ebina, Journal of Media Economics, Vol.28, Issue 1, pp.20-40, 2015.

  18. Cost Pass-Through and Inverse Demand Curvature in Vertical Relationships with Upstream and Downstream Competition, with Takanori Adachi and Takeshi Ebina, Economics Letters, Vol.124, Issue 3, pp.465-468, 2014. 

  19. Too Many Attributes and Consumer's Dysfunction, Keita Kinjo and Takeshi Ebina, Frontiers in Artificial Intelligence and Applications, IOS Press, Conference Proceedings, Vol.262, pp.112-121, 2014.

  20. Complementing Cournot's Analysis of Complements: Unidirectional Complementarity and Mergers, Takanori Adachi and Takeshi Ebina, Journal of Economics, Vol.111, Issue 3, pp.239-261, 2014.

  21. Double Marginalization and Cost Pass-Through: Weyl-Fabinger and Cowan Meet Spengler and Bresnahan-Reiss, Takanori Adachi and Takeshi Ebina, Economics Letters, Vol.122, Issue 2, pp.170-175, 2014.

  22. A Pricing Strategy with Consumption Externality when the Reference Group is Large, Keita Kinjo and Takeshi Ebina, Review of Socionetwork Strategies, Vol.7, Issue 1, pp.1-13, 2013.

  23. A Unidirectional Hotelling Model Revisited, Takeshi Ebina and Daisuke Shimizu, Economics Bulletin, Vol.32, Issue 4, pp.2870-2875, 2012.

  24. Estimation of the Demand Function and Calculation of Optimal Prices Taking Externalities into Consideration: An Analysis of Book Market in Japan, Keita Kinjo and Takeshi Ebina, Frontiers in Artificial Intelligence and Applications, IOS Press, Conference Proceedings, Vol.243, pp.2090-2098, 2012.

  25. Endogenous Product Differentiation and Product R&D in Spatial Cournot Competition, Takeshi Ebina and Daisuke Shimizu, Annals of Regional Science, Vol.49, Number 1, pp.117-133, 2012.

  26. How to License a Public Licensor's Technology to an Asymmetric Duopoly, Takeshi Ebina and Shin Kishimoto, Economics and Business Letters, Vol.1, Number 2, pp.16-26, 2012.

  27. An Economic Analysis of Add-on Discounts, Takanori Adachi and  Takeshi Ebina, Managerial and Decision Economics, Vol.33, Issue 2, pp.99-107, 2012.

  28. Spatial Cournot Equilibria in a Quasi-linear City, Takeshi Ebina, Toshihiro Matsumura and Daisuke Shimizu, Papers in Regional Science, Vol.90, Issue 3, pp.613-628, 2011.

  29. A Public Patentee's Technology Transfer under a Leadership Structure, Takeshi Ebina and Shin Kishimoto, Lecture Notes in Operations Research, World publishing, Conference Proceedings, Vol.12, pp.195-203, 2010.

  30. Mixed Oligopoly and Spatial Agglomeration in Quasi-linear City, Takeshi Ebina, Toshihiro Matsumura and Daisuke Shimizu, Economics Bulletin, Vol.29, Issue 4, pp.2722-2729, 2009. 

  31. Sequential Mergers with Differing Differentiation Levels, Takeshi Ebina and Daisuke Shimizu, Australian Economic Papers, Vol.48, Issue 3, pp.237-251, 2009.

  32. An Analysis of Book Market with Consumption Externalities: Hierarchical Bayesian Modeling and Market Simulation, Keita Kinjo and Takeshi Ebina, Journal of Japan Society for Fuzzy Theory and Intelligent Informatics, Vol.25, No.2, pp.690-700, 2013 (written in Japanese). 

  33. Retail Selling of Copyrighted Goods and Package Discounting, Takanori Adachi and  Takeshi Ebina, Studies in Applied Economics, Vol.6, pp.105-119, 2012 (written in Japanese).

Unpublished Manuscripts (Including work in progress):

• 1. Product Repositioning under Regime-Switching model, with Katsumasa Nishide. -- Submitted to a refereed journal. Under revision. 

  2. Product Differentiation and Entry Timing in a Continuous-time Spatial Competition Model with Vertical Relations, with Noriaki Matsushima.

  3. Marketing with Equality: Optimization of Promotion Strategies with Social Welfare Functions, with Keita Kinjo. 

  4. Optimal Incentive Contracts and Social Preference, with Susumu Cato. 

  5. Inequality Aversion in Long-term Contracts, with Susumu Cato. - Munich Personal RePEc Archive MRPA Paper No. 59893.

  6. Strategic Investment in Alternative Projects under Uncertainty, with Masaru Tabeta.

  7. Competitive Investments in Two Alternative Markets under Uncertainty, with Masaru Tabeta. 

Award:

• • Young Economists Award, first winner, Japan Association for Applied Economics, November 2012. 

Research Grants:

• 1. Period: Apr. 2021 -- (Mar. 2025): Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (C) (Contract No. 21K01468) Research Project: Investment under Uncertainty and Optimal Policy. Principal Investigator: Takeshi Ebina (Meiji University). 

  2. Period: Apr. 2018 -- (Mar. 2022): Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (C) (Contract No. 18K01627) Research Project: Merger and Innovation Strategies and Competition Policy under Uncertainty. Principal Investigator: Takeshi Ebina (Meiji University). 

  3. Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Young Scientists (B) (Contract No. 15K17047) Period: Apr. 2015 -- Mar. 2018. Research Project: Merger and Its Application to Competition Policy. Principal Investigator: Takeshi Ebina (Shinshu University)

  4. Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Young Scientists (B) (Contract No. 24730224) Period: Apr. 2012 -- Mar. 2015. Research Project: Location Choice and Its Application to the Antimonopoly Act. Principal Investigator: Takeshi Ebina (Shinshu University)

  5. Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B) (Contract No. 15H03349) Period: Apr. 2015 -- Mar. 2018. Research Project:  Principal Investigator: Noriaki Mastushima (Osaka University). Co-investigators: Takeshi Ebina (Shinshu University) and 3 other people.

  6. Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B) (Contract No. 24310110) Period: Apr. 2012 -- Mar. 2016

  7. Research Project:  Principal Investigator: Shigeo Muto (Tokyo Institute of Technology). Co-investigators: Takeshi Ebina (Shinshu University) and 8 other people.

  8. Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (C) (Contract No. 24530264) Period: Apr. 2012 -- Mar. 2015 

  9. Research Project: Principal Investigator: Daisuke Shimizu (Gakushuin University). Co-investigator: Takeshi Ebina (Shinshu University)

Other Grants:

• 1. The Zengin Foundation for Studies on Economics and Finance, FY2010 Research Grant. Period: Apr. 2011 -- Mar. 2012. Research Project: Effects and Constitution of Reference Point: A Theoretical Study on Behavioral Economics. Principal Investigator: Susumu Cato (University of Tokyo). Co-investigator : Takeshi Ebina (Tokyo University of Science)

  2. Japan Economic Research Foundation, FY2008 Research Grand. Period: Apr. 2009 -- Mar. 2010. Research Project: Pricing in Asymmetric Mixed Bundling: Theory and Empirics. Principal Investigator: Takanori Adachi (Tokyo Institute of Technology). Co-investigators: Takeshi Ebina (Tokyo Institute of Technology), Makoto Hanazono (Nagoya University)

Association:

• • Econometric Society, Japan Association for Applied Economics, Japan Economic Association, Operations Research Society of Japan. 

Research Interests

• • Industrial organization, Game theory, Real option. 

Referee Services:

• • AI & Society, Asia-Pacific Journal of Accounting and Economics, Economics and Business Letters, Economics Letters, European Journal of Operational Research, International Journal of Economic Theory, International Review of Finance and Economics, Japan and the World Economy, Japanese Economic Review, Journal of Economics, Journal of the Operations Research Society of Japan, Journal of Regional Science, Journal of Theoretical and Institutional Economics, Manchester School, Operations Research Letters, Papers in Regional Science, PLOS ONE, Review of Industrial Organization, Scandinavian Journal of Economics, Studies in Applied Economics.