Konishi, Yoshifumi

写真a

Affiliation

Faculty of Economics ( Mita )

Position

Professor

Related Websites
Scopus Paper Info  
Paper Count: 14 Citation Count: 233 h-index: 10

Click to view the Scopus page. The data was downloaded from Scopus API in June 21, 2026, via http://api.elsevier.com and http://www.scopus.com .

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Career 【 Display / hide 】

  • 1999.11
    -
    2001.04

    Goldman Sachs, Investment Research, Business Analyst

  • 2002.09
    -
    2008.06

    University of Minnesota, Department of Applied Economics, Research Assistant

  • 2008.07
    -
    2010.07

    Williams College, Department of Economics, Assistant Professor

  • 2010.09
    -
    2017.08

    Sophia University, Faculty of Liberal Arts, Associate Professor of Economics

  • 2017.09
    -
    2020.03

    University of Tsukuba, Department of Policy and Planning Science, Associate Professor of Economics

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Research Keywords 【 Display / hide 】

  • Carbon Pricing

  • Transportation and Environment

  • Empirical Microeconomics

  • Emissions Trading System

  • Structural Estimation

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Books 【 Display / hide 】

  • Economics of Ridesharing

    小西祥文, Mitsubishi Economic Research Institute, 2024.11,  Page： 110

  • 『環境経済学のフロンティア』

    小西,祥文, 日本評論社, 2017.09

    Scope: 交通と環境の経済学

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Papers 【 Display / hide 】

  • Is ride-sharing good for environment? Evidence from combining satellite and survey data on U.S. cities

    Y. Konishi, A. Ono

    Journal of Urban Economics (Elsevier)  154 2026.08

    Research paper (scientific journal), Joint Work, Lead author, Last author, Corresponding author, Accepted

    　View Summary

    We estimate the causal effect of ride-hailing entry on transport-related air pollution, disentangling its mediating effect through changes in commuting modes in U.S. cities. To do so, we combine two sets of empirical approaches. First, for our main outcome regression, we leverage granular satellite-based NO2 concentration data and a newly constructed Google Trends-based measure of ride-hailing presence, with the staggered difference-in-differences design. Second, to explore its mediating mechanism, we use household-level commuting mode data to run two auxiliary regressions: commuting modes on ride-hailing entry and ambient NO2 concentration on commuting modes. For identification on the latter, we construct our instruments by combining geography-based instruments with leave-one-out regional average exposure to Uber’s official entry. We find robust evidence that (i) ride-hailing improves air quality in highly dense cities, but has no significant impact in cities with low to medium density and (ii) this air quality improvement is indeed mediated by the associated changes in commuting mode choices. Our findings provide strong empirical support for the hypothesis that the environmental impact of ride-hailing depends on its complementarity with public transit.

  • Why is Japan’s carbon emissions from road transportation declining?

    Konishi Y., Kuroda S.

    Japan and the World Economy (Elsevier)  66 ( 101194 )  2023.06

    Research paper (scientific journal), Joint Work, Accepted

  • Do regulatory loopholes distort technical change? Evidence from new vehicle launches under the Japanese fuel economy regulation

    Y Konishi, S Managi

    Journal of Environmental Economics and Management, 102377 (Elsevier)  104 2020.11

    Research paper (scientific journal), Accepted,  ISSN  00950696

    　View Summary

    Environmental regulation often creates regulatory loopholes that are not ideal in first-best settings. Such loopholes affect the marginal costs of alternative compliance strategies, leading to distortion in firm's compliance choice. We quantify the unintended effect of such loopholes on technical change in the Japanese automobile industry, using variant-level data on new vehicle launches. We employ a triple difference strategy, exploiting the two-fold treatment-control structures within each product segment, due to regulation-induced variations in the Japanese fuel economy standards over time. Our results indicate that regulation-induced differences in technical trade-offs have induced a distortion not only in product attributes but also in technical progress in fuel economy technology.

  • EBPMにおける構造推定と誘導形推定 ～効果的な環境政策へ向けて～

    小西,祥文

    『環境経済・政策研究』（招待論文）  2020.03

    Research paper (other academic), Single Work, Lead author, Last author, Corresponding author, Accepted

  • 効果的な環境政策を考える ～自動車由来のCO2排出削減施策に関する実証分析～

    小西,祥文

    月刊『統計』（招待論稿）  2020.02

    Research paper (other academic), Single Work

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Papers, etc., Registered in KOARA 【 Display / hide 】

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Reviews, Commentaries, etc. 【 Display / hide 】

  • 気候変動の社会的費用を考える(2)～新しいSCCへ

    小西祥文

    経済セミナー (日本評論社)   ( 2024年4・5月号 ) 78 - 94 2024.04

    Article, review, commentary, editorial, etc. (scientific journal), Single Work, Lead author, Last author, Corresponding author

  • 気候変動の社会的費用を考える(1)～これまでのSCC～

    小西祥文

    経済セミナー (日本評論社)   ( 2024年2・3月号 ) 110 - 121 2024.02

    Article, review, commentary, editorial, etc. (scientific journal), Single Work, Lead author, Last author, Corresponding author

  • 政策ニーズからエビデンスを考える(2)～ 気候変動対策としての建築規制（後編）～

    小西祥文

    経済セミナー (日本評論社)   ( 2023年12・2024年1月号 ) 85 - 99 2023.12

    Article, review, commentary, editorial, etc. (scientific journal), Single Work, Lead author, Last author, Corresponding author

  • 政策ニーズからエビデンスを考える(1)～ 気候変動対策としての建築規制（前編）～

    小西祥文

    経済セミナー (日本評論社)   ( 2023年10・11月号 ) 71 - 84 2023.10

    Article, review, commentary, editorial, etc. (scientific journal), Lead author, Last author, Corresponding author

  • 環境政策の技術進歩促進効果を考える

    小西祥文

    経済セミナー (日本評論社)   ( 2023年8・9月号 ) 99 - 111 2023.08

    Article, review, commentary, editorial, etc. (scientific journal), Single Work, Lead author, Last author, Corresponding author

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Presentations 【 Display / hide 】

  • DIDの計量経済手法の近年の展開

    小西祥文

    [Domestic presentation]  日本経済学会2023年度春季大会, 

    2023.05
    , 

    Public lecture, seminar, tutorial, course, or other speech, 日本学術会議数量的経済・政策分析分科会

  • 脱炭素政策のデザインにおける実証ミクロ的評価手法の重要性

    小西祥文

    [Domestic presentation]  財務省財務総合政策研究所 講演会, 

    2022.12
    , 

    Public lecture, seminar, tutorial, course, or other speech

  • Is Ride-hailing Good for Environment?

    Yoshifumi Konishi

    [Domestic presentation]  Empirical Microeconomics Seminar, 

    2022.06
    , 

    Oral presentation (general), Waseda University

  • Staggered DIDの近年の動向 ～問題と対策～

    小西祥文

    [Domestic presentation]  第24回労働経済学コンファレンス, 

    2021.09
    , 

    Public lecture, seminar, tutorial, course, or other speech

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

  • Environment, Transportation, and New Economic Geography

    2021.04
    -
    2026.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Principal investigator

  • 市場統合の経済効果とその経路依存性に関する研究～明治期の鉄道網建設を例として～

    2019.04
    -
    2023.03

    科研費, Coinvestigator(s)

  • 非都市部の交通需要の構造推定と新交通システムの可能性に関する基盤研究

    2018.04
    -
    2021.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Principal investigator

  • 非都市部の交通需要の構造推定と新交通システムの可能性に関する基盤研究

    2018.04
    -
    2021.03

    科研費, 基盤(C), Principal investigator

  • 環境政策の長期的な産業構造に与える影響に関する理論・実証研究

    2013.04
    -
    2015.03

    科研費, 若手研究(B), Principal investigator

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Awards 【 Display / hide 】

  • 学術賞

    2022.10, 環境経済・政策学会

    Type of Award： Award from Japanese society, conference, symposium, etc.

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Courses Taught 【 Display / hide 】

  • TOPICS IN SOCIETY AND ENVIRONMENT

    2025

  • SEMINAR: SOCIETY AND ENVIRONMENT

    2025

  • SEMINAR: ENVIRONMENTAL ECONOMICS

    2025

  • SEMINAR: APPLIED ECONOMICS AND POLICY

    2025

  • SEMINAR: APPLIED ECONOMICS

    2025

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Courses Previously Taught 【 Display / hide 】

  • Econometric Analysis

    University of Tsukuba

    2017.10
    -
    2020.03
    , 

    Graduate (liberal arts), Lecture, Within own ｆaculty

  • Empirical Microeconomics

    University of Tsukuba

    2017.10
    -
    2020.03
    , 

    Undergraduate (specialized), Seminar, Within own ｆaculty

  • Public Economics

    Sophia University, University of Tsukuba

    2010.10
    -
    2020.03
    , 

    Undergraduate (specialized), Lecture, Within own ｆaculty

  • Industrial Organization

    Sophia University

    2010.10
    -
    2017.09
    , 

    Undergraduate (specialized), Lecture, Within own ｆaculty

  • Introductory Microeconomics

    Sophia University

    2010.10
    -
    2017.09
    , 

    Undergraduate (liberal arts), Lecture, Within own ｆaculty

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Social Activities 【 Display / hide 】

  • 日経エコノミクス・パネル

    日本経済新聞社

    2024.11
    -
    2025.10

  • EBPMに係る論文解説講義

    総務省

    2024.09
    -
    2024.11

  • 実証経済学から見るGX政策の課題と対策

    みずほ証券（ESG機関投資家向け講演）

    2024.09

  • GX政策に関する追加的視点

    内閣府 EBPMアドバイザリーボード

    2023.04
    -
    2025.11

  • 競争法・競争政策における 環境評価手法の利用

    公正取引委員会

    2023.01
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Media Coverage 【 Display / hide 】

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Academic Activities 【 Display / hide 】

  • 日本学術振興会 科学研究費助成事業 審査委員（基盤B）

    2019.04
    -
    2021.03

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