Welcome to Susumu CATO's website
Professor, Institute of Social Science, University of Tokyo
Email: susumu.cato[at]gmail.com (replace [at] with @)
Correspondence Address
Institute of Social Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033
Research Fields
Social Choice Theory
Political Philosophy (distributive justice & population ethics)
Politics, Philosophy, and Economics (PPE)
Welfare Economics
Organizational Economics
Industrial Organization
News
Jan 10, 2023: A new working paper is available
Title: Independent, neutral, and monotonic collective choice: The role of Suzumura consistency,
Co-authors: Walter Bossert and Kohei Kamaga
Feb 2, 2023: A new paper in Japanese has been published
Title: "Jissen to kosei" ("practice and fairness: conceptual and economic analysis of fair play" in English) will appear in
Journal: Syakaikagaku-kenkyu (Journal of Social Science).
Co-authors: Masaya Miyamoto
Feb 17, 2023: A new working paper is available
Co-authors: Walter Bossert and Kohei Kamaga
Feb 20, 2023: A dialogue on homo-economicus (with Sonoe Omoda, Ken Oshitani, and Shigeki Uno). The event is held in the ISS.
March 15, 2023: A new paper has been accepted
Title: Strategic crackdown on organized crime by local governments
Journal: Economics of Governance
Co-author: Ken Yahagi
May 3-6, 2023: A talk in Granada
Event: Workshop on Collective Decisions: Current Trends (University of Granada)
Title: Non-binary population ethics and the mere addition paradox
Date: May 4th
Note: Stéphane Gonzalez presents our joint work too (May 4th)
June 3, 2023: A new paper has been accepted
Title: "Independent, neutral, and monotonic collective choice: The role of Suzumura consistency"
Journal: Social Choice and Welfare
Co-authors: Walter Bossert and Kohei Kamaga
July 6, 2023: Organizing an international conference
Speakers: Matthew Adler (Duke University), Wataru Tanaka (University of Tokyo), Hun Chung (Waseda University), Kenneth Mori McElwain and the ISS COVID Team (University of Tokyo), Jun Otsuka (Kyoto University), Sawako Shirahase (University of Tokyo)
July 15, 2023: One paper is forthcoming
Title: Trade-off between repugnant and sadistic conclusions under the separability of people’s lives
Book chapter: Y. Adachi and M. Usami (eds.), Governance for a Sustainable Future. Springer.
July 16, 2023: A new working paper is available.
Title: Fair social quasi-orderings
Co-author: Marc Fleurbaey
July 17-21, 2023: A talk in Paris
Event: SAET (Society for the Advancement of Economic Theory) conferences in Paris
Title: Non-binary population ethics and the mere addition paradox
Date: July 17th
July 20, 2023: A paper came out.
Title: Are good leaders truly good?
Co-author: Akira Inoue
Journal: Analysis
July 24, 2023: summaries of two books are available in UTokyo BiblioPlaza:
Cato, Susumu (2016). Rationality and Operators: The Formal Structure of Preferences. Springer Briefs in Economics, Springer-Verlag.
Ohtaki, Masayuki, Cato, Susumu (eds.) (2017). Keynes to Sono Jidai o Yomu (Lessons from Keynes and his contemporary writers - a guide to rethinking a time of crisis), University of Tokyo Press.
Aug 8: A new paper has been accepted.
Title: A new result on the impossibility of avoiding both the repugnant and sadistic conclusions
Co-author: Ko Harada
Journal: Economics Letters
Aug 18: A new paper has been accepted.
Title: Infection control, subjective estimates, and the ethics of testing during the COVID-19 pandemic
Co-author: Shu Ishida
Journal: Bioethics
Aug 25-26: A talk by my co-author, Akira Igarashi (in Japanese)
Event: JAMS (Japanese Association for Mathematical Sociology), Aichi Daigaku, Nagoya
Paper: Do history textbooks influence future political beliefs?
Date: Aug 25, 11:30 am -13:00 am
Note: This is a poster session
Sept 13: A new paper has been accepted.
Title: Stable dystopia: a critique of the circular definition of stability in Nozick’s model of utopia
Co-author: Hun Chung
Journal: Analysis
Sept 12: A new discussion paper is available.
Title: Suzumura consistency and minimal quasi-transitive extensions
Co-authors: Walter Bossert and Kohei Kamaga
Sept 13: A new discussion paper is available.
Title: Ex-post approaches to prioritarianism and sufficientarianism
Co-authors: Matthew D. Adler, Walter Bossert, and Kohei Kamaga
Available at SSRN: https://ssrn.com/abstract=4569519 or http://dx.doi.org/10.2139/ssrn.4569519
Sept 15: A program committee member / a chair of Session 5
Sept 16-17: A discussant
Paper: Consistent linear orders for supermajority rules (Yasunori Okumura)
Sep 16, 2023 9:30 AM - 11:30 AM Room 4 (C301)
Sept 20: A new paper has been accepted.
Title: Potential rationality in collective decision-making
Journal: Synthese
Sept 27 - Oct 28
Visiting Australian National University
Host: Alan Hájek
Oct 7: Joining "Scientist Festival" as a collaborator
Onsite Poster: Shigeto Seno
Oct 19: A talk at ANU Thursday Seminar
Oct 23: Elected a council member of the society of social choice and welfare (2022-2027).
The approval voting applied.
Oct 27: Walter Bossert, my co-author, gives a talk on our project.
Title: Suzumura consistency and minimal quasi-transitive extensions
Event: 7th Spain-Japan meeting on economic theory
Place: Waseda University
Nov 2-4, 2023: Talks in New Orleans
Event: PPE conference
Sessions
[1] Formal Approaches to Deliberative Democracy and Aggregative Democracy
[2] Formal Approaches to PPE: Algorithmic Fairness and Nozick’s Framework for Utopia
Note: I will join the event with my co-author, Hun Chung.
Nov 27, 2023: A new paper has been accepted.
Title: Timeslice Prioritarianism, Prudence, and Weak Pareto
Journal: Australasian Journal of Philosophy
Co-author: Iwao Hirose
Dec 20, 2023: A new paper has been accepted.
Title: Sufficientarianism and incommensurability
Journal: Philosophical Studies
Jan 26, 2024: A talk at Otaru University of Commerce
Title: Population ethics with thresholds
Co-authors: Walter Bossert and Kohei Kamaga
Event: Saturday Workshop
Jan 26, 2024. 4:10 pm -5:40 pm
Jan 27, 2027: A study group on Rawls's political philosophy
A host of this group.
Jan 30, 2024: A talk in the JLPS workshop
Feb 6, 2024: Applied Ethics Workshop
Role: organizer
Two presentations (chaired by Ken Oshitani):
Satoshi Kodama (Kyoto U )
Title：Conceptual and ethical issues in pandemic response
Jeroen Hopster (1 hour; In person; chaired by Ken Oshitani)
Title：Do status quo expectations carry moral weight? Their role in a just climate transition
Location: Institute of Social Science, University of Tokyo
Date：February 6, 2024／3:00 pm ‐5:00 pm (JST)
Feb 9, 2024: A presentation
Title: Fair social quasi-orderings
Event: Dialogue between Philosophy and Economics: Taking Interpersonal Comparisons of Well-being Seriously in Its Formulation and Measurement for Social Evaluation
Feb 16, 2024: A new paper has been accepted.
Title: Tsunami-tendenko follows the anti-extinction principle, not utilitarianism
Journal: Journal of Medical Ethics
Co-author: Ken Oshitani
March 4, 2024: Hosting a talk
Speaker: Benoit Decerf (The World Bank)
Title: Lives, Livelihoods, and Learning: A Global Perspective on the Wellbeing Impacts of the Covid-19 Pandemic (joint work with J. Friedman, A Mendes, S Pennings, N Yonzan)
Location: Institute of Social Science, University of Tokyo
March 16-17: A talk by my co-author, Kohei Kamaga (in Japanese)
Event: JAMS (Japanese Association for Mathematical Sociology), Osaka University, Osaka
Paper: The Poverty Line Paradox
Date: March 16, 2024
Note: This is a poster session
March 18, 2024: Hosting a talk
Speaker: L.A.Paul (the Millstone Family Professor of Philosophy and Professor of Cognitive Science, Yale University)
Title: The computational self: location in space, time, and possibility (joint work with Julian de Freitas (Harvard), Tomer Ullman (Harvard), & Josh Tenenbaum (MIT))
Location: Institute of Social Science, University of Tokyo
Co-organizer: Kengo Miyazono (Graduate School of Humanities & Human Sciences, Hokkaido University)
April 4, 2024: A new paper has been accepted.
Title: Smallest quasi-transitive extensions
Journal: Journal of Mathematical Economics
Co-authors: Walter Bossert and Kohei Kamaga