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Theoretical and experimental approaches to the economics of information transmission and the formation of an international research network

Research Project

Project/Area Number 19H01471
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 07010:Economic theory-related
Research InstitutionWaseda University

Principal Investigator

Kawamura Kohei  早稲田大学, 政治経済学術院, 教授 (30787817)

Co-Investigator(Kenkyū-buntansha) 清水 崇  神戸大学, 経済学研究科, 教授 (80323468)
本領 崇一  同志社大学, 経済学部, 准教授 (40835667)
三浦 慎太郎  神奈川大学, 経済学部, 准教授 (80632794)
定兼 仁  京都大学, 経済研究所, 助教 (30804900)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords情報伝達 / 情報開示 / チープトーク / シグナリング / ベイズ説得 / 戦略的情報伝達 / 情報集計 / 戦略的投票 / 説得ゲーム / マスメディア
Outline of Research at the Start

本研究の概要は主に次の2点にまとめられる。1.個人間、組織や市場、またはオンラインニュース等に見られる様々な戦略的情報伝達について、必ずしも合理的ではないプレイヤーの存在を考慮に入れたゲーム理論分析を経済実験と並行しながら進め、情報伝達の基礎理論と応用理論の双方に貢献する。2.こうした研究成果を更に発展させる契機として日本国内を拠点とする情報伝達理論の研究者が参加する定期ワークショップを創設し、研究者同士のネットワークを構築して連携を強化する。さらにこのワークショップに海外から当該分野の有力研究者を招聘して研究交流することにより、研究の推進と発信を強化する機会を日本の研究者に広く提供する。

Outline of Final Research Achievements

We first developed a community of researchers working on economic analysis of information transmission based in Japan, through both in-person and online workshops. In the following step, by inviting researchers based outside of Japan and deepening research exchanges with them, we obtained international recognition of the activities and research output of the research community. This has allowed us to obtain feedback from both domestic and overseas researchers on ongoing research projects, and created an environment that promotes international collaboration. Utilizing this environment, for example, in our research on the reliability of online news, we demonstrated that easier access to news articles decreases their credibility. In our research on voting theory, we derived the equilibria where the most efficient aggregation of information occurs, and demonstrated their intuitive and practical implications.

Academic Significance and Societal Importance of the Research Achievements

社会における情報の氾濫と信頼性低下が危惧される中、情報伝達の経済分析は学術的、および社会的な重要性を増す一方、我が国では複数の大学にまたがる当分野の研究者が定期的に会し、研究水準を高め合う機会が無かった。本研究では多数の研究会開催と海外研究者の招聘を通して、国際共同研究を推進する環境を整備し、同時に当研究者グループは日本における当分野の研究拠点として国際的認知を獲得することができた。この環境を活かし、情報伝達の経済分析に国際学術誌への出版を通した貢献を行うとともに、オンラインニュースの信頼性についての経済理論分析をはじめとした、実社会の問題に直接的な関わりを持つ研究成果をあげた。

Report

(5 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (54 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (8 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (44 results) (of which Int'l Joint Research: 8 results,  Invited: 6 results)

  • [Int'l Joint Research] バース大学/イースト・アングリア大学/競争・市場庁(CMA)(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] コンコルディア大学(カナダ)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Efficient equilibria in common interest voting games2024

    • Author(s)
      Kawamura Kohei、Vlaseros Vasileios
    • Journal Title

      International Journal of Game Theory

      Volume: - Issue: 2 Pages: 475-492

    • DOI

      10.1007/s00182-024-00886-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] News credibility and the quest for clicks2023

    • Author(s)
      Kawamura Kohei、Le Quement Mark T.
    • Journal Title

      Journal of Public Economics

      Volume: 227 Pages: 105005-105005

    • DOI

      10.1016/j.jpubeco.2023.105005

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multistage Information Transmission with Voluntary Monetary Transfers2023

    • Author(s)
      Hitoshi Sadakane
    • Journal Title

      Theoretical Economics

      Volume: 18 Issue: 1 Pages: 267-301

    • DOI

      10.3982/te3501

    • NAID

      40022347005

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Strategic stability of equilibria in multi-sender signaling games2021

    • Author(s)
      Vida Peter、Honryo Takakazu
    • Journal Title

      Games and Economic Behavior

      Volume: 127 Pages: 102-112

    • DOI

      10.1016/j.geb.2021.02.006

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Idiosyncratic Information and Vague Communication2021

    • Author(s)
      HONRYO TAKAKAZU、YANO MAKOTO
    • Journal Title

      American Political Science Review

      Volume: 115 Issue: 1 Pages: 165-178

    • DOI

      10.1017/s0003055420000660

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Maximal miscommunication2020

    • Author(s)
      Miura Shintaro、Yamashita Takuro
    • Journal Title

      Economics Letters

      Volume: 188 Pages: 108962-108962

    • DOI

      10.1016/j.econlet.2020.108962

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Strategic central bank communication: Discourse analysis of the Bank of Japan’s Monthly Report2019

    • Author(s)
      Kohei Kawamura, Kobashi Yohei, Shizume Masato, Ueda Kozo
    • Journal Title

      Journal of Economic Dynamics and Control

      Volume: 100 Pages: 230-250

    • DOI

      10.1016/j.jedc.2018.11.007

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cheap Talk when the Receiver Has Uncertain Information Sources2019

    • Author(s)
      Jun-Ichiro Ishida and Takashi Shimizu
    • Journal Title

      Economic Theory

      Volume: 印刷中 Issue: 2 Pages: 303-334

    • DOI

      10.1007/s00199-018-1123-y

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] A Model of Sequential Consultation2024

    • Author(s)
      河村耕平
    • Organizer
      CIRANO Workshop on Misinformation: Causes, consequences, and remedies
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cheap Talk and Lie Detection2024

    • Author(s)
      定兼仁
    • Organizer
      CIRANO Workshop on Misinformation: Causes, consequences, and remedies
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cheap Talk and Lie Detection2024

    • Author(s)
      定兼仁
    • Organizer
      Virtual seminar series in information economics and experiments (VIEE)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cheap Talk and Lie Detection2024

    • Author(s)
      定兼仁
    • Organizer
      英バース大学 Department of Economics Seminar
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Cheap Talk and Lie Detection2023

    • Author(s)
      定兼仁
    • Organizer
      HSI 2023: Microeconomic Theory
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Value of Middle Managers2023

    • Author(s)
      三浦慎太郎
    • Organizer
      東京理科大学経済学セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Value of Middle Managers2023

    • Author(s)
      三浦慎太郎
    • Organizer
      Organizational Economics Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Value of Middle Managers2023

    • Author(s)
      三浦慎太郎
    • Organizer
      日本経済学会2023年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] On the Combination of Biased Members2023

    • Author(s)
      清水崇
    • Organizer
      Contract Theory Workshop
    • Related Report
      2022 Annual Research Report
  • [Presentation] On the Combination of Biased Members2023

    • Author(s)
      清水崇
    • Organizer
      75th European Meeting of the Econometric Society
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] News Credibility and the Quest for Clicks2023

    • Author(s)
      河村耕平
    • 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
  • [Presentation] News Credibility and the Quest for Clicks2023

    • Author(s)
      河村耕平
    • Organizer
      グラスゴー大学Microtheory Seminar
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2023

    • Author(s)
      定兼仁
    • Organizer
      Applied Economics and Management Workshop 第 13 回研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2023

    • Author(s)
      定兼仁
    • Organizer
      Virtual Seminar Series in Information Economics and Experiments (VIEE)
    • Related Report
      2021 Annual Research Report
  • [Presentation] News Credibility and the Quest for Clicks2023

    • Author(s)
      河村耕平
    • Organizer
      京都大学経済研究所ミクロ経済学・ゲーム理論研究会, グラスゴー大学Microtheory Seminar
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2023

    • Author(s)
      定兼仁
    • Organizer
      Applied Economics and Management Workshop 第 13 回研究会, Virtual Seminar Series in Information Economics and Experiments (VIEE)
    • Related Report
      2020 Annual Research Report
  • [Presentation] News begets news: A Model of Endogenously Repeated Costly Consultation2022

    • Author(s)
      河村耕平
    • Organizer
      Virtual Seminar Series on Information Economics and Experiments
    • Related Report
      2021 Annual Research Report
  • [Presentation] On the Combination of Biased Members2022

    • Author(s)
      清水崇
    • Organizer
      Osaka Workshop on Economics of Institutions and Organizations
    • Related Report
      2021 Annual Research Report
  • [Presentation] On the Combination of Biased Members2022

    • Author(s)
      清水崇
    • Organizer
      Communication and Persuasion Workshop
    • Related Report
      2021 Annual Research Report
  • [Presentation] Delegation in Teams2022

    • Author(s)
      本領崇一
    • Organizer
      高麗大学BK21 FOUR Microeconomics Theory Seminar
    • Related Report
      2021 Annual Research Report
  • [Presentation] Delegation in Teams2022

    • Author(s)
      本領崇一
    • Organizer
      Signaling in Social Interactions: a Multidisciplinary Approach (学会、於パリ第2大学)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Delegation in Teams2022

    • Author(s)
      本領崇一
    • Organizer
      東北大学現代経済学研究会合同セミナー
    • Related Report
      2021 Annual Research Report
  • [Presentation] Robust Prediction in Games with Uncertain Parameters2022

    • Author(s)
      三浦慎太郎
    • Organizer
      一橋大学経済理論ワークショップ
    • Related Report
      2021 Annual Research Report
  • [Presentation] Robust Prediction in Games with Uncertain Parameters2022

    • Author(s)
      三浦慎太郎
    • Organizer
      慶應義塾大学ミクロ経済学ワークショップ
    • Related Report
      2021 Annual Research Report
  • [Presentation] Robust Prediction in Games with Uncertain Parameters2022

    • Author(s)
      三浦慎太郎
    • Organizer
      日本経済学会2022年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Robust Prediction in Games with Uncertain Parameters2022

    • Author(s)
      三浦慎太郎
    • Organizer
      2022 AMES in East and South-East Asia
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Value of Middle Managers2022

    • Author(s)
      三浦慎太郎
    • Organizer
      The 21st Annual SAET Conference
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cheap Talk and Lie Detection2022

    • Author(s)
      定兼仁
    • Organizer
      BAPTIST-KYOTO-NTU-OSAKA-SINICA Workshop on Economic Theory
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2022

    • Author(s)
      定兼仁
    • Organizer
      慶應大学ミクロ経済学ワークショップ
    • Related Report
      2021 Annual Research Report
  • [Presentation] News Begets News: A Model of Endogenously Repeated Costly Consultation2022

    • Author(s)
      河村耕平
    • Organizer
      Virtual Seminar Series on Information Economics and Experiments
    • Related Report
      2020 Annual Research Report
  • [Presentation] Delegation in Teams2022

    • Author(s)
      本領崇一
    • Organizer
      高麗大学BK21 FOUR Microeconomics Theory Seminar, Signaling in Social Interactions: a Multidisciplinary Approach (学会、於パリ第2大学), 東北大学現代経済学研究会合同セミナー
    • Related Report
      2020 Annual Research Report
  • [Presentation] Robust Prediction in Games with Uncertain Parameters2022

    • Author(s)
      三浦慎太郎
    • Organizer
      一橋大学経済理論ワークショップ, 慶應義塾大学ミクロ経済学ワークショップ, 日本経済学会2022年度秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2022

    • Author(s)
      定兼仁
    • Organizer
      BAPTIST-KYOTO-NTU-OSAKA-SINICA Workshop on Economic Theory, 慶應大学ミクロ経済学ワークショップ
    • Related Report
      2020 Annual Research Report
  • [Presentation] News begets news: A model of endogenously repeated costly consultation2022

    • Author(s)
      河村耕平
    • Organizer
      Virtual Seminar Series on Information Economics and Experiments
    • Related Report
      2019 Annual Research Report
  • [Presentation] On the Combination of Biased Members2021

    • Author(s)
      清水崇
    • Organizer
      慶応義塾大学経済研究所ミクロ経済学ワークショップ
    • Related Report
      2021 Annual Research Report 2019 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2021

    • Author(s)
      定兼仁
    • Organizer
      Communication and Persuasion Workshop
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2021

    • Author(s)
      定兼仁
    • Organizer
      東京大学 Microeconomics Workshop
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2021

    • Author(s)
      定兼仁
    • Organizer
      一橋大学経済理論ワークショップ
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2021

    • Author(s)
      定兼仁
    • Organizer
      神戸大学六甲第セオリーセミナー
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2021

    • Author(s)
      定兼仁
    • 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
  • [Presentation] On the Combination of Biased Members2021

    • Author(s)
      清水崇
    • Organizer
      慶応義塾大学経済研究所ミクロ経済学ワークショップ, Communication and Persuasion Workshop, Osaka Workshop on Economics of Institutions and Organizations
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2021

    • Author(s)
      定兼仁
    • Organizer
      Communication and Persuasion Workshop, 東京大学 Microeconomics Workshop,京都大学経済研究所ミクロ経済学・ゲーム理論研究会, 一橋大学経済理論ワークショップ,神戸大学六甲第セオリーセミナー
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cheap Talk and Lie Detection2021

    • Author(s)
      定兼仁
    • Organizer
      Communication and Persuasion Workshop, 東京大学 Microeconomics Workshop,京都大学経済研究所ミクロ経済学・ゲーム理論研究会,一橋大学経済理論ワークショップ,神戸大学六甲第セオリーセミナー
    • Related Report
      2019 Annual Research Report
  • [Presentation] Diversification and Decentralization2020

    • Author(s)
      定兼仁
    • Organizer
      6th World Congress of the Game Theory Society
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2025-01-30  

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