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Technology Advancement, Time Allocation, and Communication

Research Project

Project/Area Number 20K13507
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 07050:Public economics and labor economics-related
Research InstitutionKyushu University

Principal Investigator

Muroga Kiho  九州大学, 経済学研究院, 准教授 (00828759)

Project Period (FY) 2020-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords時間配分 / 労働時間 / 家計生産時間 / テレワーク / 技術革新 / コミュニケーション / 女性活躍 / ジェンダー / ブロードバンドインターネット / 産業構造 / オンラインショッピング
Outline of Research at the Start

本研究では、インターネットの普及が時間利用・コミュニケーション状況に与える効果を推定する。インターネットは我々の時間利用やコミュニケーション状況を変化させたことが指摘されている。しかし、これまではデータの制約上、インターネットが時間利用やコミュニケーション状況に与えた因果効果を推定した研究はなかった。本研究では、政府統計のミクロデータを使用して、時間利用・コミュニケーション状況に与えた影響を分析する。また、時間利用やコミュニケーション状況の変化が、社会資本の減少・婚姻数の減少といった結果に結びついたのかも明らかにする。

Outline of Final Research Achievements

The internet has dramatically transformed our lives. Prior overseas studies have shown, for example, that the spread of the internet improved employer-employee matching in labor markets (Bhuller et al., 2019) and contributed to higher wages and incomes for women (Dettling, 2017). My recent work analyzed how the internet affects time use, revealing that its diffusion led to shorter working hours and increased household production time (Muroga, 2020). Building on these findings, it is plausible that the internet has also reshaped industrial structure.

Academic Significance and Societal Importance of the Research Achievements

これまでは詳細なデータの不足が原因となり、インターネットが産業構造に与えた影響を調べた研究はなかった。そのため、本研究では、インターネット普及率の地域差に着目し、インターネットの普及が産業構造に与えた効果を推定する。分析では、総務省「ブロードバンド整備状況調査」・総務省「労働力調査」・厚生労働省「賃金構造基本統計調査」の個票データを利用することにより、詳細な分析を行った。分析の結果、小売業従業確率の低下・卸売業従事確率の上昇が見られた。また、オンラインショッピング利用の増加やテレワークの増加といった我々の生活面に与えた影響も明らかとなった。

Report

(5 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (18 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (2 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results) Remarks (2 results)

  • [Int'l Joint Research] Dartmouth College(米国)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] Dartmouth College(米国)

    • Related Report
      2023 Research-status Report
  • [Int'l Joint Research] Dartmouth College(米国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] No Time for Love? The Impact of ICTs on Time Allocation and Relationships in Japan2022

    • Author(s)
      Muroga Kiho
    • Journal Title

      SSRN Electronic Journal

      Volume: -

    • DOI

      10.2139/ssrn.4186416

    • Related Report
      2022 Research-status Report
  • [Journal Article] Effect of Residential Broadband Internet Diffusion on Industry Composition: Evidence from Japan2022

    • Author(s)
      Muroga Kiho
    • Journal Title

      SSRN Electronic Journal

      Volume: -

    • DOI

      10.2139/ssrn.3934789

    • Related Report
      2022 Research-status Report
  • [Presentation] Anticipating Trade-offs: Individual Expectations on Career Development versus Family Formation2024

    • Author(s)
      室賀貴穂
    • Organizer
      東京大学SSJDAワークショップ
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Anticipating Trade-offs: Individual Expectations on Career Development versus Family Formation2024

    • Author(s)
      室賀貴穂
    • Organizer
      上智大学ワークショップ
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] Anticipating Trade-offs: Individual Expectations on Career Development versus Family Formation2024

    • Author(s)
      室賀貴穂
    • Organizer
      Meeting of the Society of Economics of the Household (SEHO)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] No Time for Love? The Impact of ICTs on Time Allocation and Relationships in Japan2023

    • Author(s)
      Kiho Muroga
    • Organizer
      数理・データサイエンスに関する教育研究支援プログラム
    • Related Report
      2023 Research-status Report
  • [Presentation] No Time for Love? The Impact of ICTs on Time Allocation and Relationships in Japan2022

    • Author(s)
      Kiho Muroga
    • Organizer
      数理・データサイエンスに関する教育研究支援プログラム
    • Related Report
      2022 Research-status Report
  • [Presentation] No Time for Love? The Impact of ICTs on Time Allocation and Relationships in Japan2022

    • Author(s)
      Kiho Muroga
    • Organizer
      Asian and Australasian Society of Labour Economics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] No Time for Love? The Impact of ICTs on Time Allocation and Relationships in Japan2022

    • Author(s)
      Kiho Muroga
    • Organizer
      労働経済学コンファレンス
    • Related Report
      2022 Research-status Report
  • [Presentation] Effect of Residential Broadband Internet Diffusion on Industry Composition: Evidence from Japan2021

    • Author(s)
      室賀貴穂
    • Organizer
      日本経済学会春季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Effect of Residential Broadband Internet Diffusion on Industry Composition: Evidence from Japan2021

    • Author(s)
      室賀貴穂
    • Organizer
      Asian and Australasian Society of Labour Economics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of Residential Broadband Internet Diffusion on Industry Composition: Evidence from Japan2021

    • Author(s)
      室賀貴穂
    • Organizer
      東京労働経済学研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Effect of Residential Broadband Internet Diffusion on Industry Composition: Evidence from Japan2021

    • Author(s)
      室賀貴穂
    • Organizer
      関西労働研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Remarks] 個人ホームページ

    • URL

      https://www.kihomuroga.com/home

    • Related Report
      2022 Research-status Report
  • [Remarks] 大学公式ウェブサイト

    • URL

      https://hyoka.ofc.kyushu-u.ac.jp/search/details/K007559/index.html

    • Related Report
      2022 Research-status Report

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Published: 2020-04-28   Modified: 2026-01-16  

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