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Considering Consumer Behavior and Food Waste Reduction Systems: Utilizing the Milk Game

Research Project

Project/Area Number 20K15611
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 41010:Agricultural and food economics-related
Research InstitutionTokyo University of Agriculture

Principal Investigator

Sato Mizuho  東京農業大学, 国際食料情報学部, 教授 (80738683)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords食品ロス・廃棄 / フードサプライチェーン / 食の商習慣 / 持続可能性 / シリアスゲーム / ゲーミング&シミュレーション / ゲーム理論 / 商習慣 / ミルクサプライチェーン / 意思決定 / 消費者行動 / 食品ロス / 食品廃棄 / ゲーム / 1/3ルール / サプライチェーンゲーム / 消費者 / ライフスタイル / 消費行動 / 環境意識 / Food Related Lifestyle / アンケート調査 / サプライチェーン / 2持続可能なサプライチェーンマネジメント / 消費者購買行動 / 牛乳
Outline of Research at the Start

本研究では,他者との差別化が難しい牛乳のサプライチェーンをベースに食品廃棄低減化のルールや政策を検討する.まず,多様化する消費者の牛乳の購買行動(環境への意識度, 食品廃棄への関心度など)を調査し,消費者行動をモデル化する.次に,牛乳のサプライチェーンをベースにゲームを作成し,1/3ルールがある場合とない場合など各役割のプレイヤーの意思決定と食品廃棄への影響を比較検討し,食品廃棄低減化に効果的な振る舞いを検討することとする.そして,最後にこれらの結果をゲームに盛り込みシミュレーションを通じて,異なるシナリオのもとでどのようなルールや政策が望ましいかを検討する.

Outline of Final Research Achievements

In this study, we developed a milk supply chain game (Milky Chain Game) and conducted both subject experiments and simulation experiments to examine the impact of different food trade practices (1/3 rule, 1/2 rule) on players’ decision-making and waste. In the subject experiments, even when deadlines were set for manufacturers and retailers, the impact on waste was minimal because it became easier to adjust the sales price based on these deadlines. On the other hand, in the simulation experiments, game theory-based analysis showed that imposing the 1/3 rule could eliminate the equilibrium of last-in, first-out, which tends to generate waste. Furthermore, under the 1/2 rule, it was possible to reduce waste without compromising the interests of the supply chain stakeholders.

Academic Significance and Societal Importance of the Research Achievements

日本の食品ロス・廃棄の原因の1つとして食の商習慣である1/3ルールが問題視されている.しかし,以前に行われた実証実験では,ルールを緩和することで逆に食品ロス・廃棄が増加する商品も見られていた.本研究の結果からも,それを裏付けるように,必ずしもこの商習慣が廃棄を増大させるとは限らないことが示唆された.したがって,本研究は,今後,食のサプライチェーンの施策などを検討する際の基礎としての意義がある.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results) Presentation (7 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Devising Food Waste Reduction Measures through Consumer Segmentation : -Based on the Association between Food-Related Lifestyle and Food Waste Behavior-2022

    • Author(s)
      佐藤みずほ, 水山元
    • Journal Title

      Journal of Japanese Society of Shokuiku

      Volume: 16 Issue: 4 Pages: 157-173

    • DOI

      10.14986/shokuiku.16.157

    • ISSN
      1882-4773, 2189-3233
    • Year and Date
      2022-10-25
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Equilibrium search technique using genetic algorithm and replicator dynamics and its application to food supply chain model2022

    • Author(s)
      Natsuki Morita1, Hayato Dan1, Katsumi Homma1, Hitoshi Yanami1, Shota Suginouchi, Mizuho Sato, Hajime Mizuyama, and Masatoshi Ogawa
    • Journal Title

      Smart Innovation, Systems and Technologies

      Volume: 309 Pages: 363-374

    • DOI

      10.1007/978-981-19-3444-5_31

    • ISBN
      9789811934438, 9789811934445
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] フードシステム全体から見た食品ロスの課題2022

    • Author(s)
      佐藤みずほ
    • Journal Title

      日本食品科学工学会第69回大会講演集

      Volume: 第69回大会講演集 Pages: 17-17

    • Related Report
      2022 Research-status Report
  • [Journal Article] Global Environmental Issues: Food and Agriculture Education to Address Food Loss and Waste, Aiming at a Sustainable Supply Chain2022

    • Author(s)
      Mizuho Sato, Hajime Mizuyama
    • Journal Title

      Journal of Nutritional Science and Vitaminology

      Volume: 68 Pages: 95-97

    • Related Report
      2022 Research-status Report
  • [Journal Article] Effect Evaluation of Relaxing Shipping/Selling Deadline in the Food Supply Chain, An Evolutionary Game Theoretical Approach2022

    • Author(s)
      Hayato Dan, Natsuki Morita, Katsumi Homma, Hitoshi Yanami, Shota Suginouchi, Mizuho Sato, Hajime Mizuyama, Masatoshi Ogawa
    • Journal Title

      International Annual EurOMA Conference paper

      Volume: The 29th Pages: 1-10

    • Related Report
      2022 Research-status Report
  • [Journal Article] Proposal of a beer distribution game considering waste management and the bullwhip effect2020

    • Author(s)
      Mizuho Sato, Masaru Nakano, Hajime Mizuyama, and Christoph Roser
    • Journal Title

      Serious Games, Joint International Conference, Proceedings, Springer

      Volume: JCSG 2020 Pages: 78-84

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Milky Chain Game: A Pedagogical Game for Food Supply Chain Management2023

    • Author(s)
      Mizuho Sato
    • Organizer
      Advances in Production Management Systems
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Global Environmental Issues: Food and Agriculture Education to Address Food Loss and Waste, Aiming at a Sustainable Supply Chain2022

    • Author(s)
      佐藤みずほ
    • Organizer
      2nd IUNS-ICN International Congress of Nutrition
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] フードシステム全体から見た食品ロスの課題2022

    • Author(s)
      佐藤みずほ
    • Organizer
      日本食品科学工学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 利得表が未知なゲームに対する効率的な均衡探索アルゴリズムの提案2022

    • Author(s)
      檀 隼人,森田菜月,本間克己,屋並仁史,杉之内 将大,佐藤 みずほ,水山 元,小川 雅俊
    • Organizer
      計測自動制御学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 遺伝的アルゴリズムとレプリケーターダイナミクスを用いたサプライチェーンの均衡探索2022

    • Author(s)
      森田 菜月, 檀隼人, 本間克己, 屋並仁史, 杉之内将大, 佐藤みずほ, 水山元, 小川 雅俊
    • Organizer
      日本機械学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Milky-Chain Game を用いた食品サプライチェーンの参加型シミュレーション2021

    • Author(s)
      栗田 海,佐藤 みずほ,水山 元:
    • Organizer
      日本シミュレーションゲーミング学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Proposal of a beer distribution game considering waste management and the bullwhip effect2020

    • Author(s)
      Mizuho Sato, Masaru Nakano, Hajime Mizuyama, and Christoph Roser
    • Organizer
      Serious Games, Joint International Conference, JCSG 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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