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Dynamic General Equilibrium Analysis on the Cause of the Increase in Economic Inequality and the Policy Implications

Research Project

Project/Area Number 16K17114
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Economic policy
Research InstitutionShinshu University

Principal Investigator

AOKI Shuhei  信州大学, 学術研究院社会科学系, 准教授 (00584070)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords格差 / 所得分配 / 経済政策 / 経済格差 / 所得分布 / マクロ経済学 / 所得格差 / 科学・技術・イノベーション政策
Outline of Final Research Achievements

Since the 1970s, the developed countries have experienced increases in income inequality. It becomes an important task to analyze the causes. In this research, I focus on how policy changes since the 1970s have contributed to the increase in income inequality. I constructed a macroeconomic model to analyze how the changes in tax rates such as the income tax affected income inequality. During the implementation period, I developed numerical computation methods of the model and verified the theoretical predictions of the model. The research outcomes were published in academic journals.

Academic Significance and Societal Importance of the Research Achievements

1970年代以降、先進諸国で、経済格差が拡大していることは、各国で大きな政治問題となっている。格差を縮小させる効果的な政策を立案するためには、「なぜ格差が拡大したのか?」を分析する必要がある。これまで、ファクト・ファインディング的な研究は多かったが、その原因について、理論的・定量的に分析したものはあまりなかった。本研究では、1970年代以降のアメリカの上位1%シェアの上昇を、所得税などの税率の変化により理論的かつ定量的に説明できることを示した。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (4 results)

All 2017

All Journal Article (4 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results,  Open Access: 1 results)

  • [Journal Article] Zipf's Law, Pareto's Law, and the Evolution of Top Incomes in the United States2017

    • Author(s)
      Shuhei Aoki and Makoto Nirei
    • Journal Title

      American Economic Journal: Macroeconomics

      Volume: 9 Issue: 3 Pages: 36-71

    • DOI

      10.1257/mac.20150051

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Allocation of Research Resources and Publication Productivity in Japan: A Growth Accounting Approach2017

    • Author(s)
      Aoki, Shuhei and Kimura, Megumi
    • Journal Title

      Public Policy Review

      Volume: 13 Pages: 287-303

    • Related Report
      2017 Research-status Report
  • [Journal Article] Zipf's Law, Pareto's Law, and the Evolution of Top Incomes in the U.S.2017

    • Author(s)
      Aoki, Shuhei and Makoto Nirei
    • Journal Title

      American Economic Journal: Macroeconomics

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Allocation of Research Resources and Publication Productivity in Japan: A Growth Accounting Approach2017

    • Author(s)
      Aoki, Shuhei and Megumi Kimura
    • Journal Title

      Public Policy Review

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Open Access

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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