Official Title

Assistant Professor(without tenure)


(Waseda Institute for Advanced Study)



Faculty of Political Science and Economics(Graduate School of Economics)

Research Grants & Projects

Grant-in-aids for Scientific Research Adoption Situation

Research Classification:

A comprehensive study of economics, game theory, and discrete convex analysis


Allocation Class:¥1690000

Research Classification:

A theoretical analysis of markets with indivisible commodities: An approach from discrete mathematics


Allocation Class:¥1040000

On-campus Research System

Special Research Project



Research Results Outline:    The purpose of this research is to analyze allocation ru    The purpose of this research is to analyze allocation rules that describe how to distribute limited resou...    The purpose of this research is to analyze allocation rules that describe how to distribute limited resources among agents. We explain two results obtained in this research.     First, we identify desirable allocation rules in the framework of cooperative games. The is a joint work with Professor Andre Casajus at HHL Leipzig Graduate School of Management.  We introduce a new axiom, termed weak differential monotonicity. This axiom requires monotonicity of the difference of final rewards between two specific players. We prove that this axiom characterizes the class of egalitarian Shapley values. I presented this result at East Asian Game Ttheory Conference 2017 held in Singapore.     Second, we apply discrete separation theorem to an auction model. Discrete convex analysis is a branch of mathematics that studies convexity in discrete settings. In an auction model, a non-equilibrium situation induces the discrepancy between aggregate demand and supply. Applying the discrete separation theorem to this situation, we obtain a new characterization of competitive price vectors. This result enables a unified understanding of existing auctions. I summarized this result in a working paper, which is accesible through Munich Personal Repec Archive.



Research Results Outline: 政府が公共施設(例:公立学校、保育所)に利用者を受け入れる場合、「受け入れ枠をどのように分配すれば良いのか」という問題が生じる。本研究では、受け入れ 政府が公共施設(例:公立学校、保育所)に利用者を受け入れる場合、「受け入れ枠をどのように分配すれば良いのか」という問題が生じる。本研究では、受け入れ枠のような「非分割財」(即ち、細かく分けることができない財)を適切に分配する方法について、経済学・... 政府が公共施設(例:公立学校、保育所)に利用者を受け入れる場合、「受け入れ枠をどのように分配すれば良いのか」という問題が生じる。本研究では、受け入れ枠のような「非分割財」(即ち、細かく分けることができない財)を適切に分配する方法について、経済学・離散数学を用いて分析した。主に二つの研究を進めた。一つ目の研究では、労働マッチング市場に政府が介入する状況を考え、適切な税・補助金額を発見するアルゴリズムを提示した。この研究成果をまとめた論文は国際的な学術雑誌に受理された。二つ目の研究では、日本における保育所の分配問題を取り上げ、現行の制度の問題点と修正案を論じた。

Lecture Course

Course TitleSchoolYearTerm
Market Design(Yokote, K)Graduate School of Economics2020fall semester