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2020 Fiscal Year Final Research Report

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

Research Project

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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
Keywordsゲーム理論 / 安定性
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.

Free Research Field

数理経済学

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。

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Published: 2022-01-27  

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