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Consideration of Income Uncertainty in an Endogenous Fertility Model

Research Project

Project/Area Number 22K01547
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 InstitutionKwansei Gakuin University

Principal Investigator

Yasuoka Masaya  関西学院大学, 経済学部, 教授 (90437434)

Co-Investigator(Kenkyū-buntansha) 神野 真敏  南山大学, 経済学部, 教授 (10533648)
伊藤 健宏  東北学院大学, 経済学部, 教授 (40364418)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2024: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Keywords出生率 / 不確実性 / 社会保障制度 / 所得の不確実性 / 出生率内生化 / 育児支援政策 / 育児支援 / 移民 / 少子高齢社会
Outline of Research at the Start

本研究では若年期及び老年期における不確実性を考慮した出生率内生化モデルを設定し分析することによって、所得や政策の信ぴょう性などの不確実性が出生率にどのような影響を与えるかを明らかにする。具体的な分析手法としては、経済モデルを解析的に分析することを通じて長期的な視点での考察を行うと同時にシミュレーション分析を行うことを通じて短期的な視点での考察を行う。
本研究によって明らかにされる点は下記の通りである。
①不確実性を考慮した出生率内生化モデルの定性的・定量的性質
②少子化対策と矛盾しない老年世代に対する政策のあり方

Outline of Final Research Achievements

There are various possible causes of declining fertility, but this study aims to clarify the relationship between income uncertainty and low fertility. The analysis reveals that, rather than traditional child-rearing support policies centered on benefits such as child allowances, what is truly needed to address the declining birthrate are policies that reduce future income uncertainty and ensure stable income over the long term.

Academic Significance and Societal Importance of the Research Achievements

従来の育児支援政策とは異なる形での政策が少子化対策となることを示した意義は大きいと考えられる。従来の育児支援政策とは児童手当など子どもに対して給付される政策を指している。幼保無償化についても同様である。すなわち、子どもを育てる費用の低下をもたらす政策が従来の育児支援政策である。このような政策ではなく、子育て世代が安定的な所得を得ることができる環境を整える、または、失業などの負の所得ショックに対し、負の所得ショックを和らげることができるような給付の存在こそが少子化対策として必要であることを経済モデルを用いて示した。その意義は大きいと考えられる。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (29 results)

All 2025 2024 2023 2022 Other

All Journal Article (17 results) (of which Peer Reviewed: 5 results,  Open Access: 14 results) Presentation (9 results) Remarks (3 results)

  • [Journal Article] Public and Private Educational Expenditure and Human Capital Accumulation2025

    • Author(s)
      Tanaka Hiroki、Yasuoka Masaya
    • Journal Title

      応用経済学研究

      Volume: 18 Pages: 29-44

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Education choice and human capital accumulation with an endogenous fertility model2024

    • Author(s)
      Tanaka Hiroki、Yasuoka Masaya
    • Journal Title

      Economic Analysis and Policy

      Volume: 84 Pages: 194-207

    • DOI

      10.1016/j.eap.2024.08.016

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 出生率内生化モデルにおける育児支援政策の分析2024

    • Author(s)
      安岡 匡也
    • Journal Title

      オイコノミカ

      Volume: 58(2) Pages: 27-47

    • Related Report
      2024 Annual Research Report
    • Open Access
  • [Journal Article] Policy Analysis in Endogenous Fertility Model with Human Capital Accumulation2024

    • Author(s)
      Ito Takehiro, Jinno Masatoshi, Sako Kazumitsu, Shiozu Yurika, Yasuoka Masaya
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 268 Pages: 1-14

    • Related Report
      2024 Annual Research Report
    • Open Access
  • [Journal Article] Analysis of Child Care Policies with an Uncertainty Model2024

    • Author(s)
      Ito Takehiro, Jinno Masatoshi, Sako Kazumitsu, Shiozu Yurika, Yasuoka Masaya
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 269 Pages: 1-12

    • Related Report
      2024 Annual Research Report
    • Open Access
  • [Journal Article] Analysis of Child Care Support Policies in a Model of Endogenous Fertility2024

    • Author(s)
      Ito Takehiro, Jinno Masatoshi, Sako Kazumitsu, Shiozu Yurika, Yasuoka Masaya
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 270 Pages: 1-13

    • Related Report
      2024 Annual Research Report
    • Open Access
  • [Journal Article] Macroeconomic Effects of Economic Policies During the COVID-19 Pandemic2024

    • Author(s)
      Yasuoka Masaya, Hasegawa Ryoji
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 282 Pages: 1-34

    • Related Report
      2024 Annual Research Report
    • Open Access
  • [Journal Article] Immigration Policy in a Two Sector Model2024

    • Author(s)
      Jinno Masatoshi and Masaya Yasuoka
    • Journal Title

      Hitotsubashi Journal of Economics

      Volume: 65 Issue: 1 Pages: 51-64

    • DOI

      10.15057/hje.2024003

    • ISSN
      2436-097X
    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Service for Decreasing Elderly Care Levels and Supply System2024

    • Author(s)
      Kazumasa Oguro, Ryo Ishida and Masaya Yasuoka
    • Journal Title

      応用経済学研究

      Volume: 16・17 Pages: 57-64

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of Relaxing Residence Status for Foreign Workers on Native Residents2024

    • Author(s)
      Masatoshi Jinno and Masaya Yasuoka
    • Journal Title

      MPRA Paper

      Volume: 120568 Pages: 1-30

    • Related Report
      2023 Research-status Report
    • Open Access
  • [Journal Article] Demand for education investment in a model with uncertainty2023

    • Author(s)
      Hiroki Tanaka and Masaya Yasuoka
    • Journal Title

      Economics Bulletin

      Volume: 43(4) Pages: 1780-1786

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] School Choice and Private Tutoring2023

    • Author(s)
      Hiroki Tanaka and Masaya Yasuoka
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 255 Pages: 1-12

    • Related Report
      2023 Research-status Report
    • Open Access
  • [Journal Article] School Choice and Private Tutoring in the Endogenous Fertility Model2023

    • Author(s)
      Hiroki Tanaka and Masaya Yasuoka
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 260 Pages: 1-16

    • Related Report
      2023 Research-status Report
    • Open Access
  • [Journal Article] Demand for education investment in a model with uncertainty2023

    • Author(s)
      Hiroki Tanaka, Masaya Yasuoka
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 245 Pages: 1-8

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] AK type production function in DSGE model2023

    • Author(s)
      Masaya Yasuoka, Minoru Hayashida, Ryoichi Namba, Hiroyuki Ono
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 246 Pages: 1-19

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] Immigration policy in a two sector model2022

    • Author(s)
      Masatoshi Jinno, Masaya Yasuoka
    • Journal Title

      Discussion Paper Series, School of Economics, Kwansei Gakuin University

      Volume: 241 Pages: 1-14

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] The effects of admittingi Immigrants: a look at Japan’s school and pension systems2022

    • Author(s)
      Masatoshi Jinno, Masaya Yasuoka
    • Journal Title

      MPRA Paper

      Volume: 115182 Pages: 1-26

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Presentation] Public Education, Pension and Debt Policy2024

    • Author(s)
      安岡 匡也
    • Organizer
      2024年度日本経済学会秋季大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] コロナ禍における経済政策のマクロ経済効果2024

    • Author(s)
      安岡 匡也
    • Organizer
      日本財政学会第81回大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] School Choice and Private Tutoring2023

    • Author(s)
      安岡 匡也 田中宏樹
    • Organizer
      2023年度日本応用経済学会春季大会
    • Related Report
      2023 Research-status Report
  • [Presentation] School Choice and Private Tutoring in the Endogenous Fertility Model2023

    • Author(s)
      安岡 匡也 田中 宏樹
    • Organizer
      2023年度日本経済学会秋季大会
    • Related Report
      2023 Research-status Report
  • [Presentation] 出生率内生化モデルにおける育児支援政策の分析2023

    • Author(s)
      安岡 匡也
    • Organizer
      2023年度日本応用経済学会秋季大会
    • Related Report
      2023 Research-status Report
  • [Presentation] Immigration policy in two sectors model2022

    • Author(s)
      安岡 匡也
    • Organizer
      2022年度日本応用経済学会春季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Immigration policy in two sectors model2022

    • Author(s)
      安岡 匡也
    • Organizer
      日本財政学会第79回全国大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Demand for education investment in the model with uncertainty2022

    • Author(s)
      安岡 匡也
    • Organizer
      2022年度日本経済学会秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 親子間における双方向の利他心が介護に及ぼす影響2022

    • Author(s)
      伊藤 健宏 迫 一光
    • Organizer
      2022年度日本応用経済学会春季大会
    • Related Report
      2022 Research-status Report
  • [Remarks] IDEAS Page

    • URL

      https://ideas.repec.org/f/pya254.html

    • Related Report
      2024 Annual Research Report
  • [Remarks] Masaya Yasuoka, IDEAS

    • URL

      https://ideas.repec.org/f/pya254.html

    • Related Report
      2023 Research-status Report
  • [Remarks] 安岡匡也のページ

    • URL

      https://sites.google.com/view/myasuoka1978/home

    • Related Report
      2022 Research-status Report

URL: 

Published: 2022-04-19   Modified: 2026-01-16  

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