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Investigating a penetration process of new production factors: Implications from the case of industrial robots

Research Project

Project/Area Number 21K18437
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 7:Economics, business administration, and related fields
Research InstitutionYokohama City University

Principal Investigator

Ota Rui  横浜市立大学, 国際商学部, 教授 (00338229)

Co-Investigator(Kenkyū-buntansha) 藤生 源子  横浜国立大学, 大学院国際社会科学研究院, 教授 (80431394)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsロボット / 労働力不足 / 自動化 / 産業用ロボット / 自動車 / 生産要素 / 国際貿易 / 経済成長
Outline of Research at the Start

近年、ロボットやAIの普及が経済、特に労働市場に与える分析は大きな注目を受けているが、既存研究はそのような労働力と代替的な生産要素の普及過程を、国際貿易を許した設定で分析していない。貿易を通じた生産財の決定は、必要とする生産要素の決定にも繋がる。これにより労働力と代替的な生産要素の普及の程度や速度は、国によって異なる可能性がある。グローバル化が深化する経済において新しい生産要素の普及過程を分析することは、労働市場等へ適切な政策を行うために必要である。本研究はこの問いに日本の産業用ロボット産業を例として分析し、AI等の新しい生産要素の普及過程に示唆をもたらすことを目的とする。

Outline of Final Research Achievements

The purpose of this research project is to study the early development of the Japanese industrial robot industry for revealing the factors that promoted the introduction of robots in 1970s and the impact of their diffusion on the Japanese economy. By analyzing the background of the introduction of industrial robots, which is a new production factor at that time, this study aims to provide suggestions for the diffusion process of modern new production factors such as artificial intelligence, which has been actively discussed recently.
For this purpose, we compiled a dataset on the introduction of robots by industry and labor shortages in each industry from the late 1970s to 1990. By using this dataset, we show that there is a strong correlation between unskilled labor shortages and the introduction of robots. This study was published in a peer-reviewed international academic journal.

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的意義は、日本における産業用ロボットの導入には非熟練労働力の不足が強く関連していたことを示した点にある。先行研究では労働力不足を含む様々な原因が挙げられていたが、どれも本研究のような実証分析は行っていない。1970年代以降の産業用ロボットの普及状況と労働力不足に関する指数を、産業レベルで補足できるデータをデジタル化したことで、これらの統計的関係を初めて明らかにすることができた。
人工知能の普及による経済構造の変化に大きな関心が集まっている。本研究成果の社会的意義は、新技術導入が経済構造に与える影響を分析する上で、労働力供給が大きな役割を果たすことを示唆した点にある。

Report

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

    (9 results)

All 2023 2021 Other

All Int'l Joint Research (4 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] National University of Singapore/Yale-NUS College(シンガポール)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Anhui Academy of Agricultural Sciences(中国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 中国農業大学(中国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] シンガポール国立大学(シンガポール)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Labor shortage and early robotization in Japan2023

    • Author(s)
      Deng Liuchun、Fujio Minako、Lin Xin、Ota Rui
    • Journal Title

      Economics Letters

      Volume: 233 Pages: 111404-111404

    • DOI

      10.1016/j.econlet.2023.111404

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Eventual periodicity in the two-sector RSL model: equilibrium vis-a-vis optimum growth2021

    • Author(s)
      Deng Liuchun、Fujio Minako、Khan M. Ali
    • Journal Title

      Economic Theory

      Volume: 72 Issue: 2 Pages: 615-639

    • DOI

      10.1007/s00199-020-01301-0

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The miniature two-sector model of optimal growth: The neglected case of a capital-intensive investment-good sector2021

    • Author(s)
      Fujio Minako、Lei Yan、Deng Liuchun、Khan M. Ali
    • Journal Title

      Journal of Economic Behavior & Organization

      Volume: 186 Pages: 662-671

    • DOI

      10.1016/j.jebo.2020.11.007

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Labor Shortage and Early Robotization in Japan2023

    • Author(s)
      Deng Liuchun、Fujio Minako、Lin Xin、Ota Rui
    • Organizer
      WEAI 98th Annual Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Labor Shortage and Early Robotization in Japan2023

    • Author(s)
      Liuchun Deng, Minako Fujio, Xin Lin, Rui Ota
    • Organizer
      WEAI 98TH ANNUAL CONFERENCE
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2021-07-13   Modified: 2025-11-21  

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