Kensei Nakamura

Education

• B.A. Hitotsubashi University, 2023

• M.A. Hitotsubashi University, 2025

Publication in Refereed Journals

1. Kensei Nakamura, Social choice rules with responsibility for individual skills, accepted at Journal of Mathematical Economics. WP Version

2. Kensei Nakamura, When is it (im)possible to respect all individuals’ preferences under uncertainty? Games and Economic Behavior, Volume 158, pages 114-121 (2026). Link (WP version)

3. Noriaki Kiguchi and Kensei Nakamura, Utilitarianism or egalitarianism? A new characterization of the mixed utilitarian-maximin social welfare orderings, Social Choice and Welfare, Volume 66, pages 109-126 (2026). Link

4. Kensei Nakamura, Step-by-step negotiations and the Nash bargaining solution: efficiency-free characterizations, Economics Letters, Volume 242, 111888 (2024). Link

5. Kensei Nakamura, Collective or individual rationality in the Nash bargaining solution: efficiency-free characterizations, Social Choice and Welfare, Volume 62, pages 629-642 (2024). Link

Working Papers

1. Leo Kurata and Kensei Nakamura, Collective decisions under uncertainty: efficiency, ex-ante fairness, and normalization (2025). arXiv (new version)

• R&R, Theoretical Economics

2. Kensei Nakamura, Impartial utilitarianism on infinite utility streams (2025). arXiv

• R&R, Journal of Public Economic Theory

3. Ryoga Doi and Kensei Nakamura, Condorcet-loser dominance among scoring rules (2026). arXiv

• R&R, Social Choice and Welfare

4. Yutaro Akita and Kensei Nakamura, Randomization and ambiguity perception (2025). arXiv

• Awarded the Jaffray lecture at RUD 2026 (for an outstanding paper by young researchers)

5. Kensei Nakamura and Shohei Yanagita, Cautious dual-self expected utility and weak uncertainty aversion (2025). arXiv

6. Kensei Nakamura, Weak independence of irrelevant alternatives and generalized Nash bargaining solutions (2025). arXiv

7. Kensei Nakamura and Shohei Yanagita, Preferences with multiple forecasts (2025). arXiv

8. Kensei Nakamura and Shohei Yanagita, Partially rational preferences under ambiguity (2025). arXiv

9. Satoshi Nakada and Kensei Nakamura, The coarse Nash bargaining solutions (2025). arXiv

10. Leo Kurata and Kensei Nakamura, Reservation of judgment and robust collective decisions (2025). arXiv Presentation Slides (20 minutes)

11. Leo Kurata and Kensei Nakamura, Agreement with reservation of judgment under risk (2026). arXiv

CV

For more information, please see my CV!