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Theoretical research on policy coordination among asymmetric countries

Research Project

Project/Area Number 20K01727
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 07050:Public economics and labor economics-related
Research InstitutionHiroshima University

Principal Investigator

Yamaguchi Chikara  広島大学, 人間社会科学研究科(社), 教授 (60435047)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords国家間の政策協調 / 政策協調 / 環境協定 / 租税競争 / 非同質国
Outline of Research at the Start

本研究は、地球温暖化問題や租税競争など政府間の政策協調が不可欠な諸問題において国家間の異質性(人口規模、初期賦存量、生産技術、住民の選好など)の度合いが複数の政府間の提携構造および協調政策にどう影響するか、また、そうした提携が提携参加国と提携不参加国双方の厚生に与える効果について、戦略的提携理論の枠組みを用いた分析を行い、国家間の利害対立における政策協調の有効性を検証し、その政策的インプリケーションを明確にする。

Outline of Final Research Achievements

This study analyzes the coalition structure and heterogeneity among countries on the stability and sustainability of coordinated policies in global Prisoner's Dilemmas such as climate change and tax competition. We found that the introduction of income transfers among cooperating countries can destabilize coordination by promoting withdrawal from coordination, and that in the case of partial coordination among countries with asymmetric productivity, the conditions for the sustainability of coordination can be mitigated by appropriately choosing the timing of policy decisions.

Academic Significance and Societal Importance of the Research Achievements

本研究では、各国の合意に基づく分権的な協調政策について、安定的で持続的な提携行動の特徴について整理を行った。この結果は、環境経済学や租税競争理論への貢献だけではなく、地球温暖化問題の気候変動枠組条約(COP)、安全保障に関する核拡散防止条約(NPT)、税源浸食と利益移転(BEPS)におけるデジタル課税や自由貿易協定(FTA)といった多国間協定の持続的な制度設計(改変)に有益な指針となると考えられる。

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

    (3 results)

All 2023 2021 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results)

  • [Int'l Joint Research] University of Alberta(カナダ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Endogenous leadership and sustainability of enhanced cooperation in a repeated interactions model of tax competition: Endogenous leadership in tax competition2023

    • Author(s)
      Jun-ichi Itaya and Chikara Yamaguchi
    • Journal Title

      Journal of Public Economic Theory

      Volume: 25 Issue: 2 Pages: 276-300

    • DOI

      10.1111/jpet.12624

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Overlapping Climate Clubs: Self-Enforcing R&D Networks to Mitigate Global Warming2021

    • Author(s)
      Emilson Caputo Delfino Silva and Chikara Yamaguchi
    • Journal Title

      Games

      Volume: 13(1) Issue: 1 Pages: 1-24

    • DOI

      10.3390/g13010004

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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

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