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Income taxation and redistribution with extensive marginal labor responses based on age and generation

Research Project

Project/Area Number 19K01717
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 InstitutionMeiji Gakuin University (2020-2022)
Shizuoka University (2019)

Principal Investigator

Takamatsu Yoshihiro  明治学院大学, 経済学部, 教授 (90454016)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords最適所得税 / 就業選択 / 年齢に基づく税制・再分配政策 / 非自発的失業 / 失業給付 / 給付付き税額控除 / 老後の資産形成 / 年齢に基づく政策 / 就業選択行動
Outline of Research at the Start

グローバル化の進展や非正規労働など雇用形態が多様化する一方,少子高齢化の進展で労働人口が減少する中で,就労可能な低所得者向けの所得課税・再分配政策を再考する必要がある。
本研究は家計の労働供給行動として就業選択行動を採用した最適所得税モデルを構築し,誘因両立的な所得再分配政策を提示するための理論的分析を行う。具体的には,①年齢や世代に基づく政策の有用性と世代ごとの再分配政策のあり方,②労働需要側と非自発的失業者を考慮した再分配政策,③不確実な人的資本投資の下での所得課税・再分配政策のあり方,の3点について考察する。

Outline of Final Research Achievements

In this study, I investigate the optimal labor income taxation with extensive labor margin and propose incentive compatible redistribution policies. This study suggests the following: (i) We consider the optimal age-dependent income taxation in a dynamic extensive margin and show that a negative participation tax should be restricted to young households. (ii) We investigate an optimal combination of labor income taxation and search-contingent unemployment benefits in a model with involuntary unemployed households. We derive optimal rules of employment tax and the search-contingent unemployment benefits and show that the optimal size of unemployment benefits is likely positive. (iii) We consider the stationary nonlinear labor income taxation in a dynamic extensive margin. The long-run consequences of household’s saving behavior and asset distribution blunt the desirability of in-work benefits policies.

Academic Significance and Societal Importance of the Research Achievements

これまでの多くの研究では,家計の労働供給行動として労働時間の選択モデルを用いて分析を行ってきたが,本研究では就業選択モデルを採用し,年齢に基づいた政策の有用性や動学的モデルの下での給付付き税額控除の有用性,給付付き税額控除と失業給付の有用性と役割分担について明らかにしており,その点に学術的意義がある。また,今後の就労可能な低所得者に対する所得税・再分配政策の制度設計に関して有用な判断材料を提供することができた点に社会的意義がある。

Report

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

    (9 results)

All 2023 2022 2021 2020 2019

All Journal Article (5 results) (of which Open Access: 4 results,  Peer Reviewed: 1 results) Presentation (3 results) (of which Int'l Joint Research: 2 results) Book (1 results)

  • [Journal Article] 平時からの所得再分配政策の必要性:アフターコロナを見据えて2022

    • Author(s)
      高松 慶裕
    • Journal Title

      証券レビュー

      Volume: 62 (2) Pages: 1-7

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] 給付付き税額控除と最適参加税率―労働不効用の想定による影響―2021

    • Author(s)
      高松 慶裕
    • Journal Title

      経済系:関東学院大学経済経営学会研究論集

      Volume: 283 Pages: 67-75

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] Optimal labor income taxation and social security programs when private savings are unobservable2021

    • Author(s)
      Takao Takaoka and Yoshihiro Takamatsu
    • Journal Title

      Waseda Business & Economic Studies

      Volume: 55 Pages: 1-21

    • NAID

      120007007283

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] 年齢や世代に基づいた課税・再分配政策:概観2020

    • Author(s)
      高松 慶裕
    • Journal Title

      証券レビュー

      Volume: 60巻1号 Pages: 70-82

    • NAID

      40022131459

    • Related Report
      2019 Research-status Report
    • Open Access
  • [Journal Article] Optimal age-dependent income taxation in a dynamic extensive model: The case for negative participation tax on young people2019

    • Author(s)
      Takao Takaoka and Yoshihiro Takamatsu
    • Journal Title

      Journal of Public Economic Theory

      Volume: -- Issue: 5 Pages: 1338-1367

    • DOI

      10.1111/jpet.12421

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Optimal labor income taxation and asset distribution in an economy with no insurance market and extensive labor supply responses2022

    • Author(s)
      Takao Kataoka and Yoshihiro Takamatsu
    • Organizer
      日本経済学会2022年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Optimal income taxation and unemployment benefit with involuntary unemployment2019

    • Author(s)
      Takao Kataoka and Yoshihiro Takamatsu
    • Organizer
      2019 Symposium of Public Economics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Optimal income taxation and unemployment benefit with involuntary unemployment2019

    • Author(s)
      Takao Kataoka and Yoshihiro Takamatsu
    • Organizer
      The 75th Annual Congress of the International Institute of Public Finance
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Book] 日本の家計の資産形成-私的年金の役割と税制のあり方(分担執筆 第10章「「老後の資産形成と高齢者の就業選択―就業選択モデルに基づく最適所得税からの理論的整理―」)2023

    • Author(s)
      証券税制研究会編
    • Publisher
      中央経済社
    • Related Report
      2022 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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