Japanese

Graduate School Faculty of Arts and Letters Tohoku University

Profiles

Professor HAMADA Hiroshi

Affiliations :

Mathematics
as a vantage point

At the Behavioral Science Laboratory, we aim to understand human behavior and the structure of society through data analysis and the study of mathematical models. For example, we explore questions such as: What mechanisms generate economic inequality? Why do people feel dissatisfied even when they are objectively well off? Why do university enrollment rates differ by social background?
Some students entering the humanities may feel that, because they are “non-science” oriented, they do not need to know mathematics. It is true that there are many aspects of the world that cannot be captured in numbers. At the same time, there are truths that can only be revealed through logic and data. When we look at society through mathematics and data, an entirely new world comes into view—one that would remain invisible without them.
For those about to begin their university studies, I hope you will move beyond the old divide between the humanities and the sciences and experience a wide range of perspectives on the world.

  • Research, History
  • Books, papers, etc.
  • Courses
    Behavioral Science (Introductory Seminar); Behavioral Science (Seminar); Mathematical Behavioral Science (Advanced Seminar); Mathematical Behavioral Science (Advanced Seminar)
    Personal History
    My major is mathematical sociology.

    Received a B.A. in political science at the School of Law and Politics, Kwansei Gakuin University
    Received a Ph.D. in sociology at the Graduate School of Sociology, Kwansei Gakuin University

    Career:
    Awarded Research Fellowship for Young Scientists, The Japan Society for the Promotion of Science
    Associate Professor (Non-tenured), School of Sociology, Kwansei Gakuin University
    Degree
    Ph.D. (Sociology)
    Field
    Sociology; Economics
    Research Subject
    Examining social phenomena through mathematical models;
    Integrating mathematical models with statistical models

    Keywords
    Economic Inequality; Model of Income distribution; relative deprivation; Talent VS Luck
    Affiliation
    Association of Behavioral Economics and Finance; Japanese Association for Mathematical Sociology
    Database of Researchers Information
    https://www.r-info.tohoku.ac.jp/ja/660dc95ece2aaa97364d278e4be7c438.html
  • Books
    『格差のメカニズム』勁草書房
    『社会を数理で読み解く』（共著）有斐閣
    『その問題、数理モデルが解決します』ベレ出版
    『社会科学者のためのベイズ統計モデリング』（共著）朝倉出版
    『その問題、やっぱり数理モデルが解決します』ベレ出版
    Academic Papers
    Hamada, Hiroshi, 2023, Luck of Outcome in the Talent Versus Luck Model, Advances in Complex Systems Vol. 26, No. 04n05.
    浜田宏・前田豊，2023「小集団実験による相対的剥奪モデルの検証再考」北田暁大・筒井淳也（編）『岩波講座社会学　第一巻理論と方法』岩波書店:173-193.
    浜田宏，2022「数理モデルはなぜ必要か－－理論と実証の対話」『理論と方法』37 巻 1 号 p. 2-17
    Hamada, Hiroshi, 2019, "A Bayesian Model of Income Distribution" Sociological Theory and Methods, 34(1):131-144.
    Ishida, Atsushi., Kenji Kosaka, and Hiroshi Hamada, 2014, "A Paradox of Economic Growth and Relative Deprivation." Journal of Mathematical Sociology, 38(4): 269-84.
    Hamada, Hiroshi, 2016, "A Generative Model for Income and Capital Inequality" Sociological Theory and Methods, 31(2):241-256.
    Hamada, Hiroshi, 2012,"A Model of Class Identification: Generalization of the Fararo-Kosaka Model using Lyapounov's Central Limit Theorem," Kwansei Gakuin University School of Sociology Journal. Vol.114:21-33.
    Hamada, Hiroshi. 2004. "A Generative Model of Income Distribution 2: Inequality of the Iterated Investment Game," Journal of Mathematical Sociology, 28 (1): 1-24.
    Awards
    3rd Japanese Association for Mathematical Sociology Award

Research

Japanese