Majority decision rule with minority protection: meta-agreement by deliberaiton

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K21703
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 7:Economics, business administration, and related fields
• Research Institution: University of Tsukuba (2020-2023); Waseda University (2019)
• Principal Investigator: Kaneko Mamoru 筑波大学, システム情報系, 名誉教授 (40114061)
• Project Period (FY): 2019-06-28 – 2024-03-31
• Keywords: 多数決ルール / 多数派の横暴 / 少数派の保護 / 熟議 / 比率均衡

Outline of Final Research Achievements

This project aimed to study a design of a protection of minorities in the majority decision making in public environment. At the micro level, for example, the community with various municipal governments decides cost-sharing for their waste treatments; here, we studied discrimination against minority governments and institutional protection. At the macro level, we have observed many instances where small countries may be oppressed by a large country, and the world federal government should have rules to avoid such oppressions. During this project, the Russia has invaded Ukraine in 2020. I studied how we should think about this invasion. I published a paper on this study in Advances in Applied Sociology. There, I argued that the sovereignty of each country is the base for management of the world.

Free Research Field

社会経済世界の基礎

Academic Significance and Societal Importance of the Research Achievements

経済学・ゲーム理論分野では、社会経済現象を価値判断から自由な形で科学的に研究をするという伝統が強く残り、具体的研究の多くはその形をとっている。しかし、現実の世界では、個人の生活から国々の政策まで、社会制度の中にある。それ故、経済学・ゲーム理論もどのような社会制度を採用すれば良いかの価値判断を正面から考察し、それらからの逸脱が小さくなるように制度設計を考える。このような立場から既存制度の平等性、そして参加主体（個人、国家など）をより平等に取り扱う制度設計がどうあるべきかを議論している。