Umezawa Masashi 梅澤正史

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UMEZAWA Masashi 梅澤正史

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Researcher Number	20361305
Other IDs
Affiliation (Current)	2025: 東京理科大学, 経営学部ビジネスエコノミクス学科, 教授
Affiliation (based on the past Project Information) *help	2020 – 2024: 東京理科大学, 経営学部ビジネスエコノミクス学科, 教授 2016 – 2018: 東京理科大学, 経営学部ビジネスエコノミクス学科, 教授 2015: 東京理科大学, 経営学部, 教授 2011 – 2014: 東京理科大学, 経営学部, 准教授 2007 – 2009: Daito Bunka University, 経営学部, 准教授
Review Section/Research Field	Principal Investigator Basic Section 07040:Economic policy-related / Social systems engineering/Safety system / Economic policy
Keywords	Principal Investigator ゲーム理論 / 産業組織論 / ミクロ経済学 / 意思決定 / 不完全競争 / 寡占市場 / 広告 / 価格差別 / 経営科学 / 契約 … More / 特許ライセンス / 社会選択 / 社会工学 / 社会的選択 / 公共施設 / モデル化 / 応用数学 / 社会選択理論 / OR Less

Research Projects
(5 results)
Research Products
(44 results)

デジタル社会の情報環境下における企業間の価格競争Principal Investigator
- Principal Investigator
  
  梅澤正史
- Project Period (FY)
  2024 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 07040:Economic policy-related
- Research Institution
  Tokyo University of Science
Microeconomic analysis of multi-period competition among firms using customer informationPrincipal Investigator
- Principal Investigator
  
  Umezawa Masashi
- Project Period (FY)
  2020 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 07040:Economic policy-related
- Research Institution
  Tokyo University of Science
Game theoretic analysis of product development, distribution, and marketing methods according to a market structurePrincipal Investigator
- Principal Investigator
  
  Umezawa Masashi
- Project Period (FY)
  2014 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Economic policy
- Research Institution
  Tokyo University of Science
On location problem of public facilities by collective choice modelPrincipal Investigator
- Principal Investigator
  
  UMEZAWA Masashi
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Social systems engineering/Safety system
- Research Institution
  Tokyo University of Science
Game theoretic analysis for collective choice problems and the strategy-proofnessPrincipal Investigator
- Principal Investigator
  
  UMEZAWA Masashi
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Social systems engineering/Safety system
- Research Institution
  Daito Bunka University

All 2023 2022 2021 2020 2019 2018 2016 2015 2014 2013 2012 2009 2008 2007

All Journal Article Presentation

[Journal Article] Persuasive Advertising and Behavior-Based Price Discrimination2023
- Author(s)
  K. Kondo, M. Umezawa
- Journal Title
  
  SSRN
  
  Volume: N/A Pages: 1-23
- Data Source
  KAKENHI-PROJECT-20K01619
[Journal Article] Behavior-based price discrimination in a horizontally and vertically differentiated duopoly with switching costs2022
- Author(s)
  Masashi Umezawa
- Journal Title
  
  Information Economics and Policy
  
  Volume: 61(4), 101004 Pages: 1-15
- DOI
  10.1016/j.infoecopol.2022.101004
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K01619
[Journal Article] Optimal Two-Part Tariff Licensing in a Stackelberg Structure2022
- Author(s)
  Masashi Umezawa
- Journal Title
  
  SSRN
  
  Volume: NA Pages: 1-16
- Data Source
  KAKENHI-PROJECT-20K01619
[Journal Article] Impact of technology development costs on licensing form in a differentiated Cournot duopoly2020
- Author(s)
  Kitagawa Tatsuya、Masuda Yasushi、Umezawa Masashi
- Journal Title
  
  International Journal of Economic Theory
  
  Volume: 16 Issue: 2 Pages: 153-166
- DOI
  10.1111/ijet.12175
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K01619
[Journal Article] Impact of Technology Development Costs on Licensing Form in a Differentiated Cournot Duopoly2018
- Author(s)
  Tatsuya Kitagawa, Yasushi Masuda, Masashi Umezawa
- Journal Title
  
  International Journal of Economic Theory
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26380320
[Journal Article] Patent strength and optimal two-part tariff licensing with a potential rival2014
- Author(s)
  T. Kitagawa, Y. Masuda, M. Umezawa
- Journal Title
  
  Economics Letters
  
  Volume: (forthcoming) Issue: 2 Pages: 227-231
- DOI
  10.1016/j.econlet.2014.02.011
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23510184, KAKENHI-PROJECT-26380320
[Journal Article] The replacement principle for the provision of multiple public goods on tree networks2012
- Author(s)
  M. Umezawa
- Journal Title
  
  Social Choice and Welfare
  
  Volume: vol. 38 Pages: 211-235
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23510184
[Journal Article] The replacement principle for the provision of multiple public goods on tree networks2012
- Author(s)
  Masashi Umezawa
- Journal Title
  
  Social Choice and Welfare
  
  Volume: 38 Issue: 2 Pages: 211-235
- DOI
  10.1007/s00355-010-0526-x
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23510184
[Journal Article] Coalitionally Strategy-Proof Social Choice Correspondences and the Pareto Rule2009
- Author(s)
  Masashi Umezawa
- Journal Title
  
  Social Choice and Welfare Vol.33
  
  Pages: 151-158
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19710135
[Journal Article] Coalitionally strategy-proof social choice correspondences and the Pareto rule2009
- Author(s)
  Umezawa, M.
- Journal Title
  
  Social Choice and Welfare 33(1)
  
  Pages: 151-158
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19710135
[Journal Article] Modified Structural Modeling Method and Its Application -Behavior Analysis of Passengers for East Japan Railway Company-2008
- Author(s)
  Nagata, K., M. Umezawa, D. Cui, M. Amagasa
- Journal Title
  
  Industrial Engineering, Management Systems 7(3)
  
  Pages: 245-256
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19710135
[Journal Article] 最小費用ネットワーク構築ゲームにおけるコアに属する配分について2008
- Author(s)
  梅澤正史
- Journal Title
  
  経営論集(大東文化大学経営学会) 15
  
  Pages: 17-24
- NAID
  110007149662
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19710135
[Journal Article] Modified Structural Modeling Method and Its Application -Behavior Analysis of Passengers for East Japan Railway Company2008
- Author(s)
  K. Nagata, M. Umezawa, M. Amaaasa. and D. Cui
- Journal Title
  
  Industrial Engineering & Management Systems 7
  
  Pages: 245-256
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19710135
[Journal Article] 最小費用ネットワーク構築ゲームにおけるコアに属する配分について2008
- Author(s)
  梅澤正史
- Journal Title
  
  経営論集 (大東文化大学経営学会) 15
  
  Pages: 17-24
- NAID
  110007149662
- Data Source
  KAKENHI-PROJECT-19710135
[Presentation] Persuasive Advertising and Behavior-based Price Discrimination2023
- Author(s)
  Masashi Umezawa
- Organizer
  ASIA-PACIFIC INDUSTRIAL ORGANIZATION CONFERENCE 2023
- Data Source
  KAKENHI-PROJECT-20K01619
[Presentation] 説得的広告と消費者の購買履歴による価格差別2023
- Author(s)
  梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会2023年秋季研究発表会
- Data Source
  KAKENHI-PROJECT-20K01619
[Presentation] Behavior-based Price Discrimination in a Horizontally and Vertically Differentiated Duopoly with Switching Costs2022
- Author(s)
  Masashi Umezawa
- Organizer
  INFORMS Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K01619
[Presentation] 消費者の購買履歴に基づいた価格差別とスイッチングコスト2021
- Author(s)
  梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会2021年春季研究発表会
- Data Source
  KAKENHI-PROJECT-20K01619
[Presentation] Behavior-Based Price Discrimination with Indirect Network Effects and Switching Costs2019
- Author(s)
  Masashi Umezawa
- Organizer
  The 46th Annual Conference of the European Association for Research in Industrial Economics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26380320
[Presentation] Behavior-Based Price Discrimination with Switching Costs and Indirect Network Effects2018
- Author(s)
  Masashi Umezawa
- Organizer
  Asia Pacific Industrial Organization Conference 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26380320
[Presentation] Optimal Two-part Tariff Licensing for Incumbent Innovator in Differentiated Product Markets2016
- Author(s)
  Masashi Umezawa, Tatsuya Kitagawa, Yasushi Masuda
- Organizer
  The 5th World Congress of the Game Theory Society
- Place of Presentation
  Maastricht University（オランダ）
- Year and Date
  2016-07-23
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26380320
[Presentation] Royalty Licensing Mechanisms in a Leadership Structure2015
- Author(s)
  Masashi Umezawa
- Organizer
  INFORMS Annual Meeting 2015
- Place of Presentation
  Pennsylvania Convention Center (Philadelphia, PA, USA)
- Year and Date
  2015-11-04
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26380320
[Presentation] 製品開発技術の競合企業への最適ライセンス供与契約2014
- Author(s)
  北川達也、増田靖、梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会2014年秋季研究発表会
- Place of Presentation
  北海道科学大学
- Year and Date
  2014-08-28
- Data Source
  KAKENHI-PROJECT-26380320
[Presentation] Optimal licensing for incumbent innovator in differentiated product markets2014
- Author(s)
  Tatsuya Kitagawa, Yasushi Masuda, Masashi Umezawa
- Organizer
  20th Conference of the International Federation of Operational Research Societies
- Place of Presentation
  Barcelona International Convention Center (Spain)
- Year and Date
  2014-07-15
- Data Source
  KAKENHI-PROJECT-26380320
[Presentation] Patent Strength and Optimal Two-Part Tariff Licensing with a Potential Rival2014
- Author(s)
  増田靖、北川達也、梅澤正史
- Organizer
  オペレーションズ・マネジメント＆ストラテジー学会全国研究発表大会
- Place of Presentation
  拓殖大学
- Year and Date
  2014-06-07
- Data Source
  KAKENHI-PROJECT-26380320
[Presentation] The replacement principle for the provision of multiple public goods on tree networks2013
- Author(s)
  Masashi Umezawa
- Organizer
  6th International Workshop on “Technology and Standards: Applications of Game Theory”
- Place of Presentation
  東京工業大学
- Invited
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] On licensing agreement with a rival firm in a differentiated Cournot market2013
- Author(s)
  M. Umezawa, T. Kitagawa, Y. Masuda
- Organizer
  26th European Conference on Operational Research
- Place of Presentation
  Sapienza Univ. of Rome
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] On licensing agreement with a rival firm in a differentiated Cournot market2013
- Author(s)
  Masashi Umezawa, Tatsuya Kitagawa, Yasushi Masuda
- Organizer
  XXVI EURO - INFORMS Joint International Conference
- Place of Presentation
  Sapienza University of Rome
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] クールノー複占市場における競合企業へのライセンス供与契約2013
- Author(s)
  増田靖、北川達也、梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会 2013年春季研究発表会
- Place of Presentation
  東京大学
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] クールノー複占市場における競合企業へのライセンス供与契約2013
- Author(s)
  梅澤正史、北川達也、増田靖
- Organizer
  日本オペレーションズ・リサーチ学会2013年春季研究発表会
- Place of Presentation
  東京大学
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] The replacement principle for the provision of multiple public goods on tree networks2013
- Author(s)
  M. Umezawa
- Organizer
  6th International Workshop on "Technology and Standards : Applications of Game Theory"
- Place of Presentation
  Tokyo Tech Univ
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] On licensing agreement with a rival firm in a differentiated Cournot market2013
- Author(s)
  M. Umezawa, T Kitagawa, Y Masuda,
- Organizer
  26th European Conference on Operational Research
- Place of Presentation
  Sapienza University of Rome
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] ネットワーク上の複数公共施設配置問題に対する社会選択ルールについて2012
- Author(s)
  梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会
- Place of Presentation
  防衛大学校
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] ライバル企業への最適なライセンス供与契約2012
- Author(s)
  増田靖、北川達也、梅澤正史
- Organizer
  オペレーションズ・マネジメント & ストラテジー学会全国研究発表大会
- Place of Presentation
  東洋大学
- Year and Date
  2012-06-02
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] ライバル企業への最適なライセンス供与契約2012
- Author(s)
  増田靖、北川達也、梅澤正史
- Organizer
  オペレーションズ・マネジメント＆ストラテジー学会全国研究発表大会
- Place of Presentation
  東洋大学
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] ネットワーク上の複数公共施設配置問題に対する社会選択ルールについて2012
- Author(s)
  梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会 2012年春季研究発表会
- Place of Presentation
  防衛大学校
- Data Source
  KAKENHI-PROJECT-23510184
[Presentation] 協調的操作不可能な社会選択対応とパレートルールについて2009
- Author(s)
  梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会2009年秋季研究発表会
- Place of Presentation
  長崎大学
- Year and Date
  2009-09-09
- Data Source
  KAKENHI-PROJECT-19710135
[Presentation] 社会選択と施設配置問題について2009
- Author(s)
  梅澤正史
- Organizer
  大東文化大学経営研究所研究部会
- Place of Presentation
  大東文化大学
- Year and Date
  2009-07-28
- Data Source
  KAKENHI-PROJECT-19710135
[Presentation] The replacement principle for the provision of multiple public goods on tree networks2009
- Author(s)
  梅澤正史
- Organizer
  経済学・ゲーム理論セミナー
- Place of Presentation
  筑波大学
- Year and Date
  2009-09-17
- Data Source
  KAKENHI-PROJECT-19710135
[Presentation] 協調的操作不可能な社会選択対応とパレートルールについて2009
- Author(s)
  梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学
- Place of Presentation
  長崎大学
- Year and Date
  2009-09-09
- Data Source
  KAKENHI-PROJECT-19710135
[Presentation] Coalitionally Strategy- Proof Social Choice Correspondences and the Pareto Rule2008
- Author(s)
  梅澤正史
- Organizer
  The Third World Congress of the Game Theory Society
- Place of Presentation
  Evanston, IL, USA
- Data Source
  KAKENHI-PROJECT-19710135
[Presentation] Coalitionally strategy-proof social choice correspondences and the Pareto rule2008
- Author(s)
  Masashi Umezawa
- Organizer
  The Third World Congress of the Game Theory Societv
- Place of Presentation
  Northwestern Univ., IL, USA.
- Year and Date
  2008-07-14
- Data Source
  KAKENHI-PROJECT-19710135
[Presentation] 社会選択対応におけるパレートルールの協調的操作不可能性について2007
- Author(s)
  梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会夏季セミナー(SSOR)
- Place of Presentation
  静岡県伊東市ホテル聚楽
- Year and Date
  2007-08-29
- Data Source
  KAKENHI-PROJECT-19710135
[Presentation] 社会選択対応におけるパレートルールの協調的操作不可能性について2007
- Author(s)
  梅澤正史
- Organizer
  日本オペレーションズ・リサーチ学会夏季セミナー
- Place of Presentation
  伊東ホテル聚楽
- Year and Date
  2007-08-29
- Data Source
  KAKENHI-PROJECT-19710135

Umezawa Masashi 梅澤 正史

UMEZAWA Masashi 梅澤 正史

Research Projects

Research Products

デジタル社会の情報環境下における企業間の価格競争Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Microeconomic analysis of multi-period competition among firms using customer informationPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Game theoretic analysis of product development, distribution, and marketing methods according to a market structurePrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

On location problem of public facilities by collective choice modelPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Game theoretic analysis for collective choice problems and the strategy-proofnessPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Persuasive Advertising and Behavior-Based Price Discrimination2023

Author(s)

Journal Title

Data Source

[Journal Article] Behavior-based price discrimination in a horizontally and vertically differentiated duopoly with switching costs2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Optimal Two-Part Tariff Licensing in a Stackelberg Structure2022

Author(s)

Journal Title

Data Source

[Journal Article] Impact of technology development costs on licensing form in a differentiated Cournot duopoly2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Impact of Technology Development Costs on Licensing Form in a Differentiated Cournot Duopoly2018

Author(s)

Journal Title

Data Source

[Journal Article] Patent strength and optimal two-part tariff licensing with a potential rival2014

Author(s)

Journal Title

DOI

Data Source

[Journal Article] The replacement principle for the provision of multiple public goods on tree networks2012

Author(s)

Journal Title

Data Source

[Journal Article] The replacement principle for the provision of multiple public goods on tree networks2012

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Coalitionally Strategy-Proof Social Choice Correspondences and the Pareto Rule2009

Author(s)

Journal Title

Data Source

[Journal Article] Coalitionally strategy-proof social choice correspondences and the Pareto rule2009

Author(s)

Journal Title

Data Source

[Journal Article] Modified Structural Modeling Method and Its Application -Behavior Analysis of Passengers for East Japan Railway Company-2008

Author(s)

Umezawa Masashi 梅澤正史

UMEZAWA Masashi 梅澤正史