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Relating incomplete preferences to other decision-theoretic models and its application

Research Project

Project/Area Number 18K01511
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 07010:Economic theory-related
Research InstitutionIwate Prefectural University

Principal Investigator

Koida Nobuo  岩手県立大学, 総合政策学部, 教授 (30363724)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords意思決定理論 / 不完備選好 / メニュー選好 / 非推移的無差別関係 / 確率的選択 / 柔軟性への選好 / リスク / 不確実性
Outline of Final Research Achievements

This research project has mainly (1) analyzed the relationship between preference for flexibility and incomplete preferences and (2) axiomatized a general model of intransitive indifferencce. The former study relates the two seemingly unrelated models by proposing a new axiom, which also clarifies the relationship between these frameworks with other decision-theoretic models, such as stochastic choice. The latter study axiomatizes an intransitive indifference model that has a close connection to incomplete preferences. A major contribution of this approach is to distinguish two different classes of intransitive preference, one of which is relevant to an incomplete preference and the other of which is not.

Academic Significance and Societal Importance of the Research Achievements

本研究課題で得られた研究成果の大きな特徴は、二点ある。一つめは、従来の経済学の枠組みを生かしながら、より現実の行動を記述できるような新しい意思決定モデルを構築したことである。二つめは、従来無関係あるいは関係が不明確であった複数の意思決定モデルを関連づけ、その類似点と相違点を明らかにしたことである。また、いずれについても、モデルが満たすべき行動を「公理」と呼ばれる数学的法則で特徴づける「公理化」という手法で分析することにより、より現実的な選択行動の性質を明らかにし、複数のモデルの関係をより明確化することができた点が大きな貢献だと考えられる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2018 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Anticipated Stochastic Choice2016

    • Author(s)
      Nobuo Koida
    • Journal Title

      Economic Theory

      Volume: 印刷中 Issue: 3 Pages: 545-574

    • DOI

      10.1007/s00199-016-1025-9

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Intransitive indifference with direction-dependent sensitivity2021

    • Author(s)
      Nobuo Koida
    • Organizer
      京都大学経済研究所 ミクロ経済学・ゲーム理論研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Intransitive indifference with direction-dependent sensitivity2021

    • Author(s)
      小井田伸雄
    • Organizer
      日本経済学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Intransitive indifference with direction-dependent sensitivity2021

    • Author(s)
      小井田伸雄
    • Organizer
      第27回DCコンファレンス
    • Related Report
      2021 Annual Research Report
  • [Presentation] Intransitive indifference with direction-dependent sensitivity2020

    • Author(s)
      小井田伸雄
    • Organizer
      経済理論ワークショップ/HIAS Seminar
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Indecisiveness, preference for flexibility, and a unique subjective state space2018

    • Author(s)
      Nobuo Koida
    • Organizer
      FUR2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Indecisiveness, preference for flexibility, and a unique subjective state space2018

    • Author(s)
      Nobuo Koida
    • Organizer
      EEA/ESEM
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2023-01-30  

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