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Supply Networks and Macroeconomics

Research Project

Project/Area Number 21K01396
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 InstitutionAoyama Gakuin University (2022-2023)
Hokkaido University (2021)

Principal Investigator

SHIROTA Toyoichiro  青山学院大学, 経済学部, 教授 (80783951)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords供給ネットワーク / 投資特殊的技術進歩 / マクロ経済学
Outline of Research at the Start

経済の企業や産業は、中間財の仕入れ・販売という取引関係を通じて、実体的にも金融的にも相互に深く結びついている。こうした企業間・産業間の結び付きの強度が正規分布に従う場合、個別の企業や産業の動向はマクロ経済に影響しない(分散化定理)。
本研究は、この分散化定理が成立しないという、現実的ではあるが従来のマクロ経済学では十分に考慮されていない状況を前提として、既存のマクロ経済学上の重要な発見を再検討する。

Outline of Final Research Achievements

Four studies were conducted in this study. The first is a theoretical and empirical study on technological progress specific to investment goods in the presence of industrial linkages through intermediate goods. The second is a theoretical study on the optimal inflation rate under the presence of supply networks. The third is a theoretical study on the relationship between the rigidity of real values and the number of layers in the supply network, consistent with micro empirical studies. Fourth, an empirical study on whether the main determinants of economic growth are industry-specific or industry-common trends.

Academic Significance and Societal Importance of the Research Achievements

本課題の研究上の特徴は、中間財を通じた供給側のネットワークが果たす役割について検討を行った点にある。その結果、供給側のネットワークの構造は、経済成長や長期的なインフレ率、あるいは実質値の硬直性など、経済の様々な領域にわたって無視できない影響を及ぼしえることが分かった。また、こうした構造の存在を考慮しないで分析を行ってしまうと、その影響は大きなものとなりえることが分かったことも重要な成果の一つであるといえる。

Report

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

    (5 results)

All 2024 2022

All Journal Article (5 results) (of which Open Access: 4 results,  Peer Reviewed: 1 results)

  • [Journal Article] Aggregate Implications of Changing Industrial Trends in Japan2024

    • Author(s)
      Shirota Toyoichiro and Tsuchida Satoshi
    • Journal Title

      BOJ working paper

      Volume: E-02 Pages: 1-42

    • Related Report
      2023 Annual Research Report
    • Open Access
  • [Journal Article] The cost-of-living index in a cash and credit goods economy2022

    • Author(s)
      Shirota Toyoichiro
    • Journal Title

      Macroeconomic Dynamics

      Volume: - Issue: 5 Pages: 1-14

    • DOI

      10.1017/s136510052200027x

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Production Network and Optimal Inflation Rate2022

    • Author(s)
      Shirota Toyoichiro
    • Journal Title

      SSRN Electronic Journal

      Volume: -

    • DOI

      10.2139/ssrn.4231859

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] Investment-specific Technological Progress in Production Networks2022

    • Author(s)
      Shirota Toyoichiro
    • Journal Title

      SSRN Electronic Journal

      Volume: -

    • DOI

      10.2139/ssrn.4238283

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] Demand-side Real Rigidities Revisited2022

    • Author(s)
      Shirota Toyoichiro
    • Journal Title

      SSRN Electronic Journal

      Volume: -

    • DOI

      10.2139/ssrn.4236995

    • Related Report
      2022 Research-status Report
    • Open Access

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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