Updated on 2024/12/27

写真a

 
ADACHI Hiroyuki
 
Organization
Academic Assembly Institute of Humanities and Social Sciences KEIZAIGAKU KEIRETU Associate Professor
Graduate School of Modern Society and Culture Associate Professor
Faculty of Economic Sciences Associate Professor
Title
Associate Professor
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The Best Research Achievement in Research Career

    • 【Papers】 On a characterization of stable matchings  2000.7

    • 【Papers】 A search model of two-sided matching under nontransferable utility  2003.12

Degree

  • Ph.D. in economics ( 1998.9 )

  • B.A. in economics ( 1994.3   Ritsumeikan University )

Research Interests

  • Auctions

  • Search Theory

  • サーチ理論

  • ミクロ経済学

  • ゲーム理論

  • Matching Theory

  • Game Theory

  • マッチング理論

  • オークション

  • Microeconomics

Research Areas

  • Humanities & Social Sciences / Economic theory

Research History

  • Niigata University   Graduate School of Modern Society and Culture   Associate Professor

    2024.10

  • Niigata University   Faculty of Economic Sciences   Associate Professor

    2024.10

  • Niigata University   Institute of Humanities and Social Sciences, Academic Assembly   Associate Professor

    2024.10

Education

  • State University of New York at Buffalo   Department of Economics   Economics

    - 1998

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  • ニューヨーク州立大学バッファロー校   経済学研究科

    - 1998

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    Country: Japan

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Studying abroad experiences

  • State University of New York at Buffalo   Ph.D. program in economics

    1994.8 - 1998.9

 

Papers

  • Stable matchings and fixed points in trading networks: A note Reviewed

    Hiroyuki Adachi

    ECONOMICS LETTERS   156   65 - 67   2017.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCIENCE SA  

    Building on the work of Ostrovsky (2008) on supply chain networks, Fleiner et al. (2016) showed that, in possibly cyclic trading networks under fully substitutable preferences, the set of fully trail-stable matchings is nonempty by characterizing it using the set of the fixed points of an increasing function. I characterize the fully trail-stable matchings using a different fixed point (increasing) function, rendering generalized T-algorithm for such environments. (C) 2017 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.econlet.2017.03.032

    Web of Science

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  • A search model of two-sided matching under nontransferable utility Reviewed

    H Adachi

    JOURNAL OF ECONOMIC THEORY   113 ( 2 )   182 - 198   2003.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ACADEMIC PRESS INC ELSEVIER SCIENCE  

    in a decentralized marriage market there are different types of men and women. Agents sequentially search for mating partners and meet bilaterally in a random fashion. Upon meeting, the paired agents complete mating if both agree, and separate and continue searching otherwise. The polarization of interests between men and women appears as in Gale-Shapley marriage problems; as agents of one sex become more selective about their mates, agents of the other sex lose. As search costs disappear, the set of equilibrium outcomes in a search model reduces to the set of stable matchings in a corresponding Gale-Shapley marriage problem. (C) 2003 Elsevier Science (USA). All rights reserved.

    DOI: 10.1016/S0022-0531(03)00085-1

    Web of Science

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  • On a characterization of stable matchings Reviewed

    H Adachi

    ECONOMICS LETTERS   68 ( 1 )   43 - 49   2000.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCIENCE SA  

    The set of stable matchings in the Gale-Shapley marriage problem is characterized as the fixed points of an increasing function. Its well-known non-emptiness and lattice property are an immediate consequence of Tarski's fixed point theorem. (C) 2000 Elsevier Science S.A. All rights reserved. JEL classification: C71.

    Web of Science

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Teaching Experience

  • 応用ミクロ経済学

    2024
    Institution name:新潟大学

  • 応用ミクロ経済学

    2024
    Institution name:新潟大学