Koji Yokote (written as 横手 康二 in Japanese)
Project Assistant Professor at the University of Tokyo and UTMD
Ph.D. in Economics, Waseda University, Japan, 2017
Research Interests: Market Design, Game Theory, Application of Discrete Convex Analysis to Economics
Working Papers
Tandem concavity with application to matching problems (with Satoru Fujishige)
Rationalizing path-independent choice rules (with Isa E. Hafalir, Fuhito Kojima, and M. Bumin Yenmez)
Market design with distributional objectives
formerly entitled "Design on Matroids: Diversity vs. Meritocracy
(with Isa E. Hafalir, Fuhito Kojima, and M. Bumin Yenmez)
Behavioral bargaining theory: Equality bias, risk attitude, and reference-dependent utility (with Yoshio Kamijo)
Efficient, fair, and strategy-proof allocation of discrete resources under weak preferences and constraints
[Earlier version]
Articles in Refereed Journals
A note on ordinally concave functions
(with Satoru Fujishige and Fuhito Kojima)
Discrete Applied Mathematics, 376, 294-305, 2025
Economics Letters, 226, 111106, 2023
Japan Journal of Industrial and Applied Mathematics, 40, 965-983, 2023
Consistency of the doctor-optimal equilibrium price vector in job-matching markets
Journal of Economic Theory, 197, 105346, 2021.
Redistribution to the less productive: Parallel characterizations of the egalitarian Shapley and consensus values
(with Takumi Kongo and Yukihiko Funaki)
Theory and Decision, 91, 81-98, 2021
See also publisher's correction to this article.
On optimal taxes and subsidies: A discrete saddle-point theorem with application to job matching under constraints
[Supplemental material]
Journal of Mechanism and Institution Design, 5(1), 37-77, 2020
The discrete separation theorem and price adjustment directions in markets with heterogeneous commodities
Discrete Applied Mathematics, 275, 134–143, 2020
Relationally equal treatment of equals and affine combinations of values for TU games
(with Takumi Kongo and Yukihiko Funaki)
Social Choice and Welfare, 53, 197-212, 2019
See also a correction to this article. Social Choice and Welfare, 53, 555-555, 2019
Weakly differentially monotonic solutions for cooperative games
(with Andre Casajus)
International Journal of Game Theory, 48(3), 979-997, 2019
The balanced contributions property for equal contributors
(with Takumi Kongo and Yukihiko Funaki)
Games and Economic Behavior, 108, 113-124, 2018
Coincidence of the Shapley value with other solutions satisfying covariance
(with Yoshio Kamijo and Yukihiko Funaki)
Mathematical Social Sciences, 89, 1-9, 2017
Weighted values and the core in NTU games
International Journal of Game Theory, 46(3), 631-654, 2017
Random reduction consistency of the Weber set, the core and the anti-core
(with Yasushi Agatsuma and Yukihiko Funaki)
Mathematical Methods of Operations Research, 85(3), 389-405, 2017
Monotonicity implies linearity: characterizations of convex combinations of solutions to cooperative games
(with Yukihiko Funaki)
Social Choice and Welfare, 49(1), 171-203, 2017
The balanced contributions property for symmetric players
(with Takumi Kongo)
Operations Research Letters, 45(3), 227-231, 2017
Weak differential monotonicity, flat tax, and basic income
(with Andre Casajus)
Economics Letters, 151, 100-103, 2017
Weak differential marginality and the Shapley value
(with Andre Casajus)
Journal of Economic Theory, 167, 274-284, 2017
Core and competitive equilibria: An approach from discrete convex analysis
Journal of Mathematical Economics, 66, 1-13, 2016
A new basis and the Shapley value
(with Yukihiko Funaki and Yoshio Kamijo)
Mathematical Social Sciences, 80, 21-24, 2016
Weak addition invariance and axiomatization of the weighted Shapley value
International Journal of Game Theory, 44(2), 275-293, 2015
Award
The EAAMO23 Conference's Theory Track Paper Award (2023)
Waseda University Research Award (December 2018)
Waseda University Azusa Ono Memorial Award (March 2014)