Updated on 2026/06/23

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写真a

 
Chaowen Yu
 
Organization
Graduate School of International Management Department of International Management Associate Professor
School of Economics and Business Administration Department of Economics and Business Administration
Title
Associate Professor
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Degree

  • M.A. in Economics ( 2009.3   Keio University )

Research Interests

  • シャープレイ値

  • 非模索過程

  • 純化定理

Research Areas

  • Humanities & Social Sciences / Economic theory  / Public Economics

  • Humanities & Social Sciences / Economic theory  / ゲーム理論

  • Humanities & Social Sciences / Economic theory  / ミクロ経済学(数理経済学)

Education

  • Keio University

    2009.4 - 2013.3

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  • Keio University

    2007.4 - 2009.3

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  • Keio University   Faculty of Economics

    2003.4 - 2007.3

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Research History

  • Yokohama City University   School of Economics and Business Administration   Associate Professor

    2026.4

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  • Hokusei Gakuen University   School of Economics Department of Law and Economics

    2024.4 - 2026.3

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  • Rissho University   Faculty of Economics

    2022.4 - 2024.3

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  • Hokkai-Gakuen University   Faculty of Business Administration (Day Course) Department of Management

    2024.4 - 2026.3

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  • Yokohama City University   School of Economics and Business Administration Graduate School of International Management Department of International Management

    2021.4 - 2026.3

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  • Kanto Gakuin University   College of Economics

    2019.4 - 2024.3

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  • Ryutsu Keizai University

    2019.4 - 2023.3

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  • Takasaki City University of Economics   Faculty of Economics

    2018.4 - 2024.3

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  • Keio University   Graduate School of Economics

    2017.4 - 2022.3

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  • Yokohama City University

    2016.4 - 2026.3

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  • Kanagawa University   Faculty of Economics

    2014.4 - 2024.3

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  • Yokohama National University   College of Economics

    2013.4 - 2023.3

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  • Keio University   Faculty of Economics   Assistant Professor

    2013.4 - 2016.3

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Professional Memberships

Papers

  • Corrigendum to “The weak core of simple games with ordinal preferences: implementation in Nash equilibrium” [Games and Economic Behavior 44 (2003) 379–389]

    Koji Takamiya, Chaowen Yu, Takuma Wakayama, Tomoichi Shinotsuka

    Discussion Paper, School of Economics, Hokusei Gakuen University   2025.6

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  • The weak core of simple games with ordinary preferences and uncountable alternatives

    Chaowen Yu

    Hokusei Review   64 ( 2 )   99 - 106   2025.3

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    Publishing type:Research paper (bulletin of university, research institution)  

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  • Hyperplane games, prize games and NTU values Reviewed

    Chaowen Yu

    Theory and Decision   93 ( 2 )   359 - 370   2022.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s11238-021-09846-9

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    Other Link: https://link.springer.com/article/10.1007/s11238-021-09846-9/fulltext.html

  • Continuous adjustments and Smale’s non-tâtonnement processes Reviewed

    Chaowen Yu, Yuhki Hosoya

    Journal of Mathematical Economics   100   1 - 16   2022.5

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.jmateco.2021.102619

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  • On the approximate purification of mixed strategies in games with infinite action sets Reviewed

    Yuhki Hosoya, Chaowen Yu

    Economic Theory Bulletin   10 ( 1 )   69 - 93   2022.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    We consider a game in which the action set of each player is uncountable, and show that, from weak assumptions on the common prior, any mixed strategy has an approximately equivalent pure strategy. The assumption of this result can be further weakened if we consider the purification of a Nash equilibrium. Combined with the existence theorem for a Nash equilibrium, we derive an existence theorem for a pure strategy approximated Nash equilibrium under sufficiently weak assumptions. All of the pure strategies we derive in this paper can take a finite number of possible actions.

    DOI: 10.1007/s40505-022-00219-1

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    Other Link: https://link.springer.com/article/10.1007/s40505-022-00219-1/fulltext.html

  • On the purification of mixed strategies Reviewed

    Chaowen Yu, Yuhki Hosoya, Toru Maruyama

    Economics Bulletin   38 ( 3 )   1655 - 1675   2018.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

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  • 微分方程式の滞留解と模索過程の安定性 Reviewed

    細矢 祐誉, 虞 朝聞

    三田学会雑誌   106 ( 1 )   109 - 133   2013.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

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  • 偏微分方程式と需要関数の積分可能性 -Nikiliborc の定理とその応用- Reviewed

    細矢 祐誉, 虞 朝聞

    三田学会雑誌   105 ( 3 )   461 - 479   2012.10

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  • 偏微分方程式と逆需要関数の積分可能性 -Frobenius の定理を中心として- Reviewed

    細矢 祐誉, 虞 朝聞

    三田学会雑誌   105 ( 2 )   247 - 270   2012.7

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

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Books

  • 極値問題の理論

    Ioffe, Aleksandr Davidovich, Tikhomirov, Vladimir M. (Vladimir Mikhaĭlovich), 細矢, 祐誉, 虞, 朝聞( Role: Joint translator)

    知泉書館  2017.3  ( ISBN:9784862852519

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    Total pages:xxvi, 602p   Language:Japanese  

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  • 数理経済学の源流と展開

    虞 朝聞( Role: Contributor第8章)

    慶應義塾大学出版会  2015.9  ( ISBN:9784766422535

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    Total pages:x, 324p   Language:Japanese  

    CiNii Books

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Presentations

  • A note on the weak core of simple games with ordinary preferences and uncountable alternatives

    Chaowen Yu

    Mathematical Economics 2023 Workshop (Waseda University)  2023.11 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

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  • On the approximate purification of mixed strategies in games with infinite action sets

    Chaowen Yu

    ICIAM 2023 TOKYO  2023.8 

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    Event date: 2023.8

    Language:English   Presentation type:Oral presentation (general)  

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  • On the approximate purification of mixed strategies with continuum set of strategies

    Chaowen Yu

    Mathematical Economics 2022 Workshop (Kyoto University)  2022.11 

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    Event date: 2022.11

    Presentation type:Oral presentation (general)  

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  • Hyperplane games, prize games and NTU values

    Chaowen Yu

    Mathematical Economics 2021 Workshop (Kanto-Gakuin University)  2021.11 

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    Event date: 2021.11

    Presentation type:Oral presentation (general)  

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  • Continuous adjustments and Smale’s non-tâtonnement processes

    Chaowen Yu

    Mathematical Economics 2020 Workshop (Nagoya)  2020.11 

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    Event date: 2020.11

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  • Approximate Common Knowledge and Robust Equilibria

    Chaowen Yu

    13th Viennese Workshop on Optimal Control and Dynamic Games (Vienna)  2015.5 

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    Event date: 2015.5

    Presentation type:Oral presentation (general)  

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  • Locally Robust Mechanism Design

    Chaowen Yu

    20th CONFERENCE OF THE INTERNATIONAL FEDERATION OF OEPRATIONAL RESEARCH SOCIETY (Barcelona)  2014.7 

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    Event date: 2014.7

    Presentation type:Oral presentation (general)  

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Teaching Experience

  • Public Economics

    2026.4 Institution:Yokohama City University

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  • public choice theory

    2026.4 Institution:Yokohama City University

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  • Public Policy

    2026.4 Institution:Yokohama City University

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  • Advanced Mathematics for Economics

    2021.4 Institution:Yokohama City University

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  • Mathematics for Economics

    2016.4 Institution:Yokohama City University

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  • Research on Economic Theory

    2025.4 - 2026.3 Institution:Graduate School of Economics, Hokusei Gakuen University

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  • Game Theory

    2025.4 - 2026.3 Institution:Hokusei Gakuen University

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  • Microeconomics

    2024.4 - 2026.3 Institution:Hokusei Gakuen University

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  • Mathematics for Economics

    2024.4 - 2026.3 Institution:Hokusei Gakuen University

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  • Basic Mathematics for Economics

    2024.4 - 2026.3 Institution:Hokusei Gakuen University

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  • Business Economics II

    2024.4 - 2026.3 Institution:Hokkai-Gakuen University

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  • Introductory Microeconomics

    2023.4 - 2024.3 Institution:Rissho University

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  • Introductory Macroeconomics

    2023.4 - 2024.3 Institution:Rissho University

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  • Exercises on Introductory Microeconomics

    2022.4 - 2024.3 Institution:Rissho University

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  • Exercises on Introductory Macroeconomics

    2022.4 - 2024.3 Institution:Rissho University

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  • Introductory Statistics

    2022.4 - 2024.3 Institution:Rissho University

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  • Exercises on Microeconomics

    2022.4 - 2024.3 Institution:Rissho University

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  • Exercises on Macroeconomics

    2022.4 - 2024.3 Institution:Rissho University

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  • Statistics

    2022.4 - 2024.3 Institution:Rissho University

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  • Microeconomics

    2022.4 - 2023.3 Institution:Kanto Gakuin University

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  • Market Mechanism and Economic Welfare

    2022.4 - 2023.3 Institution:Rissho University

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  • Intermediate Microeconomics

    2020.4 - 2024.3 Institution:Takasaki City University of Economics

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  • Mathematical Economics

    2019.4 - 2024.3 Institution:Kanto Gakuin University

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  • Information Economics

    2019.4 - 2023.3 Institution:Ryutsu Keizai University

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  • Mathematical Economics

    2018.4 - 2024.3 Institution:Takasaki City University of Economics

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  • Seminar on Mathematical Economics

    2017.4 - 2022.3 Institution:Keio University

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  • Microeconomics

    2016.4 - 2024.3 Institution:Yokohama City University

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  • Introductory Mathematical Economics

    2014.4 - 2024.3 Institution:Kanagawa University

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  • Introductory Macroeconomics

    2014.4 - 2023.3 Institution:Yokohama National University

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  • Introductory Microeconomics

    2014.4 - 2019.3 Institution:Yokohama National University

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  • Non-cooperative Game Theory

    2013.4 - 2016.3 Institution:Keio University

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  • Microeconomics

    2013.4 - 2013.9 Institution:Yokohama National University

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