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Game-theoretic analysis of stable coalition structure in the presence of cooperation and competition

Research Project

Project/Area Number 19K23206
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0107:Economics, business administration, and related fields
Research InstitutionWaseda University

Principal Investigator

Abe Takaaki  早稲田大学, 政治経済学術院, 助教 (60848406)

Project Period (FY) 2019-08-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Keywordsゲーム理論 / 安定性 / 提携形成 / 提携関係
Outline of Research at the Start

本研究では、内部では協力し対外的には対立しあうグループの構造が、どのように安定的に維持されるのかを、数理的に明らかにすることを狙う。「提携内での協力」と「提携間での対立」が混在する問題を対象とするため「分割関数形ゲーム」と呼ばれるモデルを用いてこの問題に取り組む。
数理的な分析手法として、「コア」と呼ばれるゲーム理論の安定性概念に注目する。コアはミクロ経済学やマッチング理論など様々な分野で採用される安定性の概念である。この概念を分割関数形ゲームで展開し、その数理的性質と存在条件を分析する。

Outline of Final Research Achievements

The theme of this research is game-theoretic analysis of cooperation among people. In our everyday lives, we all belong to various groups. For example, these groups may mean companies, families, or schools. Or they might be groups in a social media service or the towns and countries in which we live. All around us, diverse groups such as these interact with each other and continue to form and split. Using the framework of game theory, the question of which kinds of groups and organizations can remain stable entities was studied.
As a research result, we established some new frameworks for analysis of coalition formation and found theoretical conditions for the stability of coalitions.

Academic Significance and Societal Importance of the Research Achievements

私たちの社会は、様々なグループが寄り集まることによってできている。そして、その各グループもまた、個人や個別の企業などが集まって形成される。このように重層的な構造のなかで、グループ同士が対立したり、グループの中で構成員らが協力したりする。
本研究は、このような一見複雑で理論的解析に適さないように見える構造・関係性を理論的枠組みに定義しなおし、数理的な分析ができる状態へと捉えなおすことに貢献している。そして実際に、提携構造がどのような場合に安定性を獲得するかに関して、いくつかの数理的条件を得た。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (11 results)

All 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Stability and values for games with coalition structures2021

    • Author(s)
      Abe Takaaki
    • Journal Title

      Economics Letters

      Volume: 200 Pages: 109750-109750

    • DOI

      10.1016/j.econlet.2021.109750

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cartel Formation in Cournot Competition with Asymmetric Costs: A Partition Function Approach2021

    • Author(s)
      Abe Takaaki
    • Journal Title

      Games

      Volume: 12 Issue: 1 Pages: 14-14

    • DOI

      10.3390/g12010014

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Unbinding Core for Coalitional Form Games2021

    • Author(s)
      Abe Takaaki、Funaki Yukihiko
    • Journal Title

      Mathematical Social Sciences

      Volume: forthcoming

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Projective Core of Symmetric Games with Externalities2020

    • Author(s)
      Takaaki Abe and Yukihiko Funaki
    • Journal Title

      International Journal of Game Theory

      Volume: Volume50 Issue: 1 Pages: 167-183

    • DOI

      10.1007/s00182-020-00745-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Axiomatizations of coalition aggregation functions2020

    • Author(s)
      Abe Takaaki
    • Journal Title

      Mathematical Social Sciences

      Volume: 103 Pages: 69-75

    • DOI

      10.1016/j.mathsocsci.2019.12.001

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Population monotonic allocation schemes for games with externalities2019

    • Author(s)
      Abe Takaaki
    • Journal Title

      International Journal of Game Theory

      Volume: 出版中 Issue: 1 Pages: 97-117

    • DOI

      10.1007/s00182-019-00675-3

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Monotonic core allocation paths for assignment games2019

    • Author(s)
      Abe Takaaki, Liu Shuige
    • Journal Title

      Social Choice and Welfare

      Volume: 53 Issue: 4 Pages: 557-573

    • DOI

      10.1007/s00355-019-01197-3

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Stable Coalition Structures and Power Indices for Majority Voting2021

    • Author(s)
      Takaaki Abe
    • Organizer
      Japan Association of Political Economy
    • Related Report
      2020 Annual Research Report
  • [Presentation] Buck-passing Dumping in a Pure Exchange Game of Bads2020

    • Author(s)
      Takaaki Abe
    • Organizer
      日本経済学会(春)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Stable Dumping Strategies in a Pure Exchange Game of Bads2019

    • Author(s)
      Takaaki Abe
    • Organizer
      CREST Ecole polytechnique
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Axiomatizations of Coalition Aggregation Functions2019

    • Author(s)
      Takaaki Abe
    • Organizer
      日本経済学会 神戸大学
    • Related Report
      2019 Research-status Report

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Published: 2019-09-03   Modified: 2022-01-27  

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