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Researcher List >> Kamaga Kohei

Kamaga Kohei

NameKamaga Kohei
AffiliationSophia University
SectionFaculty of Economics, Department of Economics
Job titleProfessor
DegreeB.A. in Economics(Waseda University), M.A. in Economics(Waseda University), Doctor of Economics(Waseda University)
Research funding number00453978
ORCID ID0000-0001-8281-7193
J-Global ID200901071307177601

Research Interests

Public Economics ,Welfare Economics ,Social Choice Theory

Research Areas

  • Humanities & social sciences / Theoretical economics / 

Research History

Jul 2023
Mitsubishi Economic Research Institute  Visiting Scholar 
Apr 2022
Tohoku University Graduate School of Economics and Management Visiting Professor 
Apr 2022
Sophia University Faculty of Economics Professor 
Sep 2019
Mar 2022
Tohoku University Graduate School of Economics and Management Visiting Associate Professor 
Apr 2015
Mar 2022
Sophia University Faculty of Economics Associate Professor 


Apr 2006
Feb 2011
Waseda University Graduate School of Economics 
Apr 2004
Jun 2006
Waseda University Graduate School of Economics 
Apr 2000
Mar 2004
Waseda University School of Political Science and Economics 


Jul 2008
Research Institute for Economics and Business Administration, Kobe University, Kanematsu Fellowship
Mar 2006
Graduate School of Economics, Waseda University, The Graduate School of Economics Dean’s Academic Prize


Walter Bossert   Susumu Cato   Kohei Kamaga   
Journal of Mathematical Economics   102983-102983   Apr 2024   [Refereed]
Walter Bossert   Susumu Cato   Kohei Kamaga   
Social Choice and Welfare   61(4) 835-852   Nov 2023   [Refereed]

We examine the impact of Suzumura’s (Economica 43:381–390, 1976) consistency property when applied in the context of collective choice rules that are independent of irrelevant alternatives, neutral, and monotonic. An earlier contribution...
Walter Bossert   Susumu Cato   Kohei Kamaga   
Economics and Philosophy   39(3) 468-484   Nov 2023   [Refereed]
Walter Bossert   Susumu Cato   Kohei Kamaga   
Economic Theory   75(4) 1099-1139   May 2023   [Refereed]

This paper provides an axiomatic analysis of sufficientarian social evaluation. Sufficientarianism has emerged as an increasingly important notion of distributive justice. We propose a class of principles that we label generalized critic...
Geir B. Asheim   Kohei Kamaga   Stéphane Zuber   
Journal of Mathematical Economics   103 Article 102768-102768   Dec 2022   [Refereed]

Books and Other Publications

Kohei Kamaga(Part:Sole author)
Springer   20 May 2020   (ISBN:9789811542541)
釜賀 浩平(Part:Others, pp. 72-92)
世界思想社   30 Jan 2019   (ISBN:9784790717256)   
Kamaga Kohei(Part:Others, pp. 107-117)
University of Tokyo Press   20 Jul 2017   (ISBN:9784130430388)   
Kamaga Kohei(Part:Others, pp. 295-320)
University of Tokyo Press   21 May 2015   (ISBN:9784130302067)   
釜賀 浩平(Part:Others, pp. 45-76)
勁草書房   25 Jul 2013   (ISBN:9784326302208)   


Kohei Kamaga   
22nd Conference of the Society for the Advancement of Economic Theory (SAET)   17 Jul 2023   
Kohei Kamaga   
16th Meeting of the Society for Social Choice and Welfare   25 Jun 2022   
Kohei Kamaga   
20th Conference of the Society for the Advancement of Economic Theory (SAET)   17 Jun 2021   
Kohei Kamaga   
Virtual Conference on Social Choice Theory and Applications   6 Feb 2021   
Kohei Kamaga   
20th Annual Meeting of the Society for Public Economic Theory (APET)   11 Jul 2019   

Teaching Experience

Welfare Economics (Graduate School of Economics, Sophia University)
Intermediate Microeconomics (Graduate School of Economics, Sophia University)
Seminar (Faculty of Economics, Sophia University)
Public Policy (Faculty of Economics, Sophia University)
Introduction to Economics (Faculty of Economics, Sophia University)

Professional Memberships

Japanese Economic Association
Econometric Society
Society for Social Choice and Welfare

Research Projects

Fairness preferences and subjective beliefs toward future generations: Theoretical and empirical studies
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
Hidefumi Yokoo Rintaro Yamaguchi Kohei Kamaga Masayuki Sawada 
Project Year: Apr 2023 - Mar 2027
Axiomatic analysis of social welfare evaluation under existential risk
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
Kohei Kamaga 
Project Year: Apr 2023 - Mar 2026
A choice function approach to variable population social choice and population ethics
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
Kohei Kamaga 
Project Year: Apr 2020 - Mar 2023
A social choice approach to population issues
Japan Security Scholarship Foundation: 
Kohei Kamaga Susumu Cato 
Project Year: Oct 2019 - Sep 2021
Exploring for New Solutions for Decline in Forestry and Agriculture in Japan: Food, the Environment and the Labor
Sophia University: 
Tetsuya Horie Kohei Kamaga Takuya Hasebe Kazushi Takahashi Masamitsu Kurata Ken-ichi Akao 
Project Year: Apr 2018 - Mar 2021