Details of the Researcher

PHOTO

Yuya Katafuchi
Section
Graduate School of Environmental Studies
Job title
Specially Appointed Assistant Professor(Research)
Degree

  • Ph.D. in Economics (Kyushu University)

e-Rad No.
40883450

Research History 8

  • 2025/04 - Present
    Research Institute for Humanity and Nature　Collaborative Researcher

  • 2024/04 - Present
    Tohoku University　Graduate School of Environmental Studies　Assistant Professor

  • 2021/10 - 2024/03
    Research Institute for Humanity and Nature　Research Department　Senior Researcher

  • 2020/04 - 2021/10
    Research Institute for Humanity and Nature　Research Department　Researcher

  • 2019/04 - 2020/03
    Research Institute for Humanity and Nature　Research Department　Research Associate

  • 2016/11 - 2019/03
    Kyushu University　Graduate School of Economics　Teaching Assistant

  • 2016/04 - 2019/03
    Kyushu University　Graduate School of Economics　Research Assistant

  • 2018/03 - 2018/09
    Kyushu University　Faculty of Economics　Technical Staff

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Education 3

  • Kyushu University　Graduate School of Economics　Doctoral Program, Department of Economic Engineering

    2015/04 - 2019/03

  • National Taiwan University　College of Social Science　Visiting Ph.D. Student

    2017/02 - 2017/07

  • Kyushu University　Graduate School of Economics　Master Program, Department of Economic Engineering

    2013/04 - 2015/03

Research Interests 11

  • Input-Output Analysis

  • Industrial Ecology

  • COVID-19

  • Coronavirus Disease

  • Statistical Causal Inference

  • Urban Planning

  • Social Welfare

  • Panel Data Analysis

  • Quantile Regression

  • Applied Econometrics

  • Econometrics

Research Areas 6

  • Environmental science/Agricultural science / Recycling systems and society /

  • Environmental science/Agricultural science / Environmental impact assessment /

  • Natural sciences / Applied mathematics and statistics / Applied Machine Learning

  • Natural sciences / Applied mathematics and statistics / Statistics

  • Humanities & social sciences / Economic statistics / Applied Econometrics

  • Humanities & social sciences / Economic statistics / Econometrics

Awards 4

  1. 2025年度 農村計画学会ベストペーパー賞

    2026/11　農村計画学会　外出自粛状況における棚田地域来訪者とその特性：COVID-19影響下の宮崎県日南市坂元棚田と道の駅酒谷の人流データによる比較を事例に

  2. 博士後期課程奨学金

    2017　九州大学

  3. 国立台湾大学留学奨学金

    2016　九州大学大学院経済学府

  4. 博士後期課程奨学金

    2016　九州大学

Papers 10

  1. Construction of an enterprise-level global supply chain database International-journal International-coauthorship Peer-reviewed

    Yuya Katafuchi, Xinmeng Li, Daniel Moran, Taiki Yamada, Hidemichi Fujii, Keiichiro Kanemoto

    Nature Communications　16　2025/12/16

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41467-025-66083-2 　

    eISSN： 2041-1723

    More details Close

    Data tracing global supply chains, commonly captured in input–output models, is a foundational resource across economic, regulatory, investment, defense, and environmental applications. Such models provide insight into interdependency and environmental burden-shifting, forming part of the empirical basis for policies such as Scope 3 embodied emissions targets, supply chain transparency, life cycle assessments, and product declarations. Current approaches, based on national statistics, remain constrained by sector-level resolution, limiting their precision and utility in certain applications. Here, we document the construction of an enterprise-level multi-regional input–output (EMRIO) table. This database merges official national input–output tables with publicly available firm-level production and transaction data, creating a globally consistent account of purchases and sales across 9,466 companies, 86,305 subsegments, and 121 countries. The finer resolution allows supply chain transactions to be represented in greater detail, providing an additional resource for analyses and policy tools requiring more disaggregated supply chain information.

  2. Effect of COVID-19-Related Policy Interventions on Land Price in Japan

    Yuya Katafuchi, Keita Shiba

    SSRN　2025/10

    Publisher: Elsevier BV

    DOI： 10.2139/ssrn.5588810 　

  3. Changes in Visitors to Rice Terraces and Their Characteristics Before and After Self-Imposed Stay-Home: Evidence from Mobility Data in the Sakamoto Rice Terraces and the nearby Roadside Station during and after COVID-19 Peer-reviewed

    Takeru Kusudo, Daisuke Kunii, Goro Komatsu, Yuya Katafuchi

    Journal of Rural Planning Studies　5　(1)　17-24　2025/03

    DOI： 10.2750/jrps.5.1_17 　

  4. Systematic Underreporting in Corporate Scope 3 Disclosure

    Xinmeng Li, Yuya Katafuchi, Daniel Moran, Taiki Yamada, Hidemichi Fujii, Keiichiro Kanemoto

    2024/10/22

    Publisher: Springer Science and Business Media LLC

    DOI： 10.21203/rs.3.rs-3670939/v2 　

    More details Close

    Abstract <p>Scope 3 emissions, which encompass both direct emissions and induced emissions along upstream supply chains, have emerged as an important metric for evaluating corporate responsibility toward climate change. Scope 3 targets are being evaluated as a core element of decarbonization plans in many economically important jurisdictions. Yet robust Scope 3 reporting has been challenging due to varying system boundaries, diverging emission factors used for estimation, and the general absence of compliance audits. To overcome these limitations, and understand the efficacy of voluntary reporting, here we establish a consistent, independent estimate of Scope 3 emissions at the firm level using a new enterprise-level global supply chain database. We find that, collectively, company self-reported Scope 3 emissions may be underestimated by nearly 50%, or 0.75 Gt C, compared to our estimate using a harmonized approach.</p>

  5. COVID-19, stigma, and habituation: evidence from mobility data Peer-reviewed

    Kenichi Kurita, Yuya Katafuchi, Shunsuke Managi

    BMC Public Health　23　(98)　1-17　2023/01/13

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1186/s12889-023-14980-w 　

    eISSN： 1471-2458

    More details Close

    Abstract Background The Japanese government has restricted people’s going-out behavior by declaring a non-punitive state of emergency several times under COVID-19. This study aims to analyze how multiple policy interventions that impose non-legally binding restrictions on behavior associate with people’s going-out. Theory This study models the stigma model of self-restraint behavior under the pandemic with habituation effects. The theoretical result indicates that the state of emergency’s self-restraint effects weaken with the number of times. Methods The empirical analysis examines the impact of emergency declarations on going-out behavior using a prefecture-level daily panel dataset. The dataset includes Google’s going-out behavior data, the Japanese government’s policy interventions based on emergency declarations, and covariates that affect going-out behavior, such as weather and holidays. Results First, for multiple emergency declarations from the beginning of the pandemic to 2021, the negative association between emergency declarations and mobility was confirmed in a model that did not distinguish the number of emergency declarations. Second, in the model that considers the number of declarations, the negative association was found to decrease with the number of declarations. Conclusion These empirical analyses are consistent with the results of theoretical analyses, which show that the negative association between people’s going-out behavior and emergency declarations decreases in magnitude as the number of declarations increases.

  6. Stigma model of welfare fraud and non‐take‐up: Theory and evidence from OECD panel data Peer-reviewed

    Kenichi Kurita, Nobuaki Hori, Yuya Katafuchi

    International Journal of Economic Theory　18　(3)　310-338　2022/09

    Publisher: Wiley

    DOI： 10.1111/ijet.12295 　

    ISSN： 1742-7355

    eISSN： 1742-7363

  7. COVID-19 with Stigma: Theory and Evidence from Mobility Data Peer-reviewed

    Yuya Katafuchi, Kenichi Kurita, Shunsuke Managi

    Economics of Disasters and Climate Change　5　(1)　71-95　2021/04

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s41885-020-00077-w 　

    ISSN： 2511-1280

    eISSN： 2511-1299

  8. Penalised Quantile Regression Analysis of the Land Price in Japan by Using GIS Data Peer-reviewed

    Yuya Katafuchi, Augusto Ricardo Delgado Narro

    Eurasian Economic Perspectives　27　87-105　2020/09/29

    Publisher: Springer International Publishing

    DOI： 10.1007/978-3-030-53536-0_7 　

    ISSN： 2364-5067

    eISSN： 2364-5075

  9. Review on Quantile Regressions

    Yuya Katafuchi

    The Keizai Ronkyu　163　49-76　2019/03

  10. Land Prices and the Unemployment Rate in Japan Peer-reviewed

    Yuya Katafuchi, Jau-er Chen

    Annual Report of Kyushu Association of Economic Science　56　47-58　2018/12

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Misc. 3

  1. Enterprise-level Multi-Regional Input–Output (EMRIO) Synthetic Model: Monte Carlo-based Internal Robustness Analysis

    Yuya Katafuchi, Keiichiro Kanemoto

    GitHub, URL: https://github.com/k1ro/emrio　2025/10/05

  2. covid-19_priority_measures_japan

    Yuya Katafuchi

    GitHub, URL: https://github.com/yuya-katafuchi/covid-19_priority_measures_japan　2021/04

  3. covid-19_emergency_statement_japan

    Yuya Katafuchi

    GitHub, URL: https://github.com/yuya-katafuchi/covid-19_emergency_statement_japan　2020/06

Presentations 40

  1. Construction of Enterprise-Level Global Supply Chain Database and its Application to Scope 3 Emissions International-presentation International-coauthorship

    Keiichiro Kanemoto, Yuya Katafuchi, Xinmeng Li, Daniel Moran, Taiki Yamada, Hidemichi Fujii

    32nd International Input-Output Association Conference　2026/06/23

  2. Global Value Chain of the iPhone International-presentation

    Yuya Katafuchi, Keiichiro Kanemoto

    32nd International Input-Output Association Conference　2026/06/23

  3. The Enterprise-Level Global Supply Chain Database International-coauthorship

    Keiichiro Kanemoto, Yuya Katafuchi, Xinmeng Li, Daniel Moran, Taiki Yamada, Hidemichi Fujii

    ISIE-EEIO "Data Matter" Webinar Series　2026/04/16

  4. Construction of An Enterprise-Level Global Supply Chain Database: The EMRIO Database - methods, data, and applications

    Yuya Katafuchi, Keiichiro Kanemoto

    OECD ENIVADE Module 1 Workshop on Multi-Regional Input-Output (MRIO) models and environmental extensions　2026/03/30

  5. iPhoneのグローバルサプライチェーンと付加価値構造

    片渕結矢, 金本圭一朗

    第20回日本LCA学会研究発表会　2026/03/03

  6. Constructing a Plot-Level Database of Geographical or Physical Disadvantages International-presentation

    Yuya Katafuchi, Yoshitaka Miyake, Takeru Kusudo

    The 70th Annual Conference of The Australasian Agricultural and Resource Economics Society　2026/02/11

  7. Global Value Chain of the iPhone International-presentation

    Yuya Katafuchi, Keiichiro Kanemoto

    1st International Conference of the Taiwan Life Cycle Assessment Society　2025/09/22

  8. 筆ポリゴンを用いた農地の団地化可能性と地域的差異－福岡県を例とした試行的分析－

    楠戸建, 若林勝史, 片渕結矢

    2025年度食農資源経済学会第19回大会　2025/09/07

  9. Systematic Underreporting in Corporate Scope 3 Disclosure International-presentation International-coauthorship

    Xinmeng Li, Yuya Katafuchi, Daniel Moran, Taiki Yamada, Hidemichi Fujii, Keiichiro Kanemoto

    31st International Input-Output Association Conference　2025/07/09

  10. Construction of An Enterprise-Level Global Supply Chain Database International-presentation International-coauthorship

    Yuya Katafuchi, Xinmeng Li, Daniel Moran, Taiki Yamada, Hidemichi Fujii, Keiichiro Kanemoto

    31st International Input-Output Association Conference　2025/07/09

  11. Construction of Enterprise-Level Global Supply Chain Database International-presentation

    Yuya Katafuchi, Xinmeng Li, Taiki Yamada, Hidemichi Fujii, Keiichiro Kanemoto

    The 16th Biennial International Conference on Ecobalance (Ecobalance 2024)　2024/11/06

  12. Scope 3 Emissions of 2,000 Companies and 12,000 Subsegments International-presentation

    Xinmeng Li, Yuya Katafuchi, Taiki Yamada, Hidemichi Fujii, Keiichiro Kanemoto

    The 16th Biennial International Conference on Ecobalance (Ecobalance 2024)　2024/11/06

  13. GISデータを用いた条件不利農地把握の試み－九州地域を対象として－

    楠戸 建, 三宅 良尚, 片渕 結矢

    2024年度 食農資源経済学会 第18回大会　2024/09/08

  14. Construction of Enterprise-Level Global Supply Chain Database and its Application to Scope 3 Emissions

    Yuya Katafuchi, Xinmeng Li, Taiki Yamada, Hidemichi Fujii, Keiichiro Kanemoto

    4th Interdisciplinary Workshop on Firm-Level Supply Networks　2024/06/24

  15. マイクロデータを用いたグローバルサプライチェーンデータベースの構築

    片渕結矢, Xinmeng Li, 山田大貴, 藤井秀道, 金本圭一朗

    第19回日本LCA学会研究発表会　2024/03/07

  16. 新たなグローバルサプライチェーンデータベースを用いたスコープ3排出量の推定

    Xinmeng Li, 片渕結矢, 山田大貴, 藤井秀道, 金本圭一朗

    第19回日本LCA学会研究発表会　2024/03/07

  17. Farmland Transaction under the Policy Change in Direct Payment Scheme for Collective Stewardship of Common Property Resources International-presentation

    Takeru Kusudo, Yuya Katafuchi

    The 68th Annual Coneference of The Australasian Agricultural and Resource Economics Society　2024/02/07

  18. Farmland Transaction under COVID-19-Related Non-Pharmaceutical Policy Intervention International-presentation

    Yuya Katafuchi, Takeru Kusudo

    The 68th Annual Coneference of The Australasian Agricultural and Resource Economics Society　2024/02/07

  19. 外出自粛前後における棚田地域来訪者とその特性の変化：宮崎県日南市坂元棚田と道の駅酒谷の人流データによる比較

    楠戸 建, 國井 大輔, 小松 悟朗, 片渕 結矢

    農村計画学会2023年度秋期大会　2023/12/09

  20. Effect of COVID-19 Related Policy Intervention on Land Price

    Yuya Katafuchi, Keita Shiba

    2022 Spring Conference of Japan Association for Applied Economics　2022/06/25

  21. Residential land price fluctuations caused by behavioral changes on work-from-home based on COVID-19

    Yuya Katafuchi

    2021 Autumn Conference of Japan Association for Applied Economics　2021/11/14

  22. COVID-19, stigma, and habituation: Theory and evidence from mobility data

    Kenichi Kurita, Yuya Katafuchi

    2021 Autumn Conference of Japan Association for Applied Economics　2021/11/14

  23. COVID-19, state of emergency, and housing market

    Augusto Ricardo Delgado Narro, Yuya Katafuchi

    2020 Autumn Conference of Japan Association for Applied Economics　2020/11/22

  24. Decomposition of Density into their Components: Analysis for the case of Japan

    Augusto Ricardo Delgado Narro, Yuya Katafuchi

    2020 Spring Conference of Japanese Association for Applied Economics　2020/06/20

  25. Unconditional Quantile Regression with Endogenous Regressors: A Simulation Study International-presentation Invited

    Yuya Katafuchi

    3rd International Conference on Econometrics and Statistics, National Chung Hsing University, Taichung, Taiwan　2019/06/26

  26. Does benefit level affect welfare stigma?: Theory and evidence from OECD panel data

    Kenichi Kurita, Yuya Katafuchi

    2019 Spring Conference of Japan Association for Applied Economics　2019/06/16

  27. Does the country-general heterogeneity in the hedonic price exist in Japan?: Penalised quantile regression analysis using GIS data International-presentation

    Yuya Katafuchi, Augusto Ricardo Delgado Narro

    15th International Symposium on Econometric Theory and Applications, Osaka University, Japan　2019/06/01

  28. Does benefit level affect welfare stigma?: Theory and evidence from OECD panel data

    Kenichi Kurita, Yuya Katafuchi

    Annual Conference of Korean Association of Applied Economics 2019　2019/04/26

  29. Is welfare stigma variable with respect to benefit level ?: Theory and evidence from OECD panel data

    Kenichi Kurita, Yuya Katafuchi

    Reserach Meeting for Applied Economics, Across Fukuoka　2019/03/15

  30. Penalized Quantile Regression Analysis of the Land Price in Japan by using GIS Data International-presentation

    Yuya Katafuchi, Augusto Ricardo Delgado Narro

    27th Eurasia Business and Economics Society Conference, Grand Inna Kuta, Bali, Indonesia　2019/01/09

  31. Unconditional Quantile Regression with Endogenous Regressors: A Simulation Study

    Yuya Katafuchi

    2018 Annual Conference of Kyushu Association of Economic Science, Shimonoseki City University, Yamaguchi, Japan　2018/12/01

  32. Social norms and Social benefit programs: Evidence from OECD panel data

    Kenichi Kurita, Yuya Katafuchi

    2018 Annual Conference of Kyushu Association of Economic Science, Shimonoseki City University, Yamaguchi, Japan　2018/12/01

  33. Land Prices and the Unemployment Rate in Japan

    Jau-er Chen, Yuya Katafuchi

    2018 1st DSGE Workshop, Senshu University　2018/11/10

  34. Land Prices and the Unemployment Rate in Japan: Quantile Regression Analysis International-presentation

    Yuya Katafuchi

    World Social Science Forum 2018, Fukuoka International Congress Center　2018/09/26

  35. Penalized Quantile Regression Analysis of the Land Price in Japan by using GIS Data

    Yuya Katafuchi, Augusto Ricardo Delgado Narro

    3rd Joint-seminar between Kyushu University and National Taiwan University, National Taiwan University, Taiwan　2018/06/29

  36. Land Prices and the Unemployment Rate in Japan

    Yuya Katafuchi

    2017 Annual Conference of Kyushu Association of Economic Science, Kurume University, Fukuoka, Japan　2017/12/09

  37. Land Prices and the Unemployment Rate in Japan

    Jau-er Chen, Yuya Katafuchi

    2017 Annual Conference of Taiwan Econometric Society, Institute of Economics, Academia Sinica, Taiwan　2017/11/07

  38. Land Prices and the Unemployment Rate in Japan

    Yuya Katafuchi, Jau-er Chen

    1st Joint-seminar between Kyushu University and National Taiwan University, National Taiwan University, Taiwan　2017/07/26

  39. Change-point versus threshold processes: a comparison using Monte Carlo simulations

    Yuya Katafuchi

    2016 Annual Conference of Kyushu Association of Economic Science, Kyushu University, Fukuoka, Japan.　2016/12/09

  40. Bayesian inference for mixture innovation model

    Yuya Katafuchi

    2015 Annual Conference of Kyushu Association of Economic Science, Kagoshima University, Kagoshima, Japan　2015/12/05

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Research Projects 4

  1. Quantifying Overtourism and Evaluating Policies for Sustainable Tourism Competitive

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Early-Career Scientists

    Institution: Tohoku University

    2026/04 - 2030/03

  2. Development of a policy database on Coronavirus Disease (COVID-19) and policy evaluation taking into account the heterogeneity

    Offer Organization: Japan Society for the Promotion of Science

    System: Grant-in-Aid for Early-Career Scientists

    Category: Grant-in-Aid for Early-Career Scientists

    Institution: Research Institute for Humanity and Nature

    2021/04 - 2026/03

  3. Mapping the Environmental Impact Footprint of Cities, Companies, and Household

    Offer Organization: Research Institute for Humanity and Nature

    System: Research Project

    Institution: Research Institute for Humanity and Nature

    2017/04 - 2024/03

  4. Empirical Analysis of the Impact of Coronavirus Disease (COVID-19) on Land Prices

    Yuya Katafuchi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grant-in-Aid for Research Activity Start-up

    Category: Grant-in-Aid for Research Activity Start-up

    Institution: Research Institute for Humanity and Nature

    2020/09 - 2022/03

Teaching Experience 1

  1. Sustainable Development and Society　Tohoku University

Media Coverage 3

  1. 新型コロナ禍での緊急事態宣言には確かな効果 総合地球環境学研究所

    財経新聞　https://www.zaikei.co.jp/article/20200929/587078.html

    2020/09/29

    Type: Internet

  2. 新型コロナウイルス感染症禍での緊急事態宣言にはやはり外出抑制効果があった～感染リスクとスティグマを考慮した理論分析と実証分析で明らかに

    経済レポート　http://www3.keizaireport.com/report.php/RID/429741/

    2020/09/25

    Type: Internet

  3. 新型コロナに対する緊急事態宣言には外出抑制効果があった、地球研が分析

    マイナビニュース　https://news.mynavi.jp/article/20200924-1333994/

    2020/09/24

    Type: Internet

Academic Activities 14

  1. Economic Systems Research

    2026 - Present

    Activity type: Peer review

  2. Japanese Journal of Statistics and Data Science

    2024/11 - Present

  3. Journal of Cleaner Production

    2023/04 - Present

  4. Technological Forecasting and Social Change

    2020/09 - Present

  5. Economics of Disasters and Climate Change

    2020/09 - Present

  6. Studies in Applied Economics

    2023 - Present

    Activity type: Peer review

  7. Japanese Journal of Food, Agricultural and Resource Economics

    2022 - Present

    Activity type: Peer review

  8. Health Science Reports

    2021/04 - Present

  9. Epidemiology & Infection

    2020/11 - Present

  10. Paper Award Reviewer, 1st International Conference of the Taiwan Life Cycle Assessment Society

    Mechanical Engineering Building, National Taiwan University

    2025/09/21 - 2025/09/24

    Activity type: Academic society, research group, etc.

  11. 日本応用経済学会2024年度秋季大会・討論者

    2024/11/09 - 2024/11/10

    Activity type: Academic society, research group, etc.

  12. 第19回日本LCA学会研究発表会・公募企画セッションオーガナイザー

    2024/03/07 - 2024/03/07

    Activity type: Academic society, research group, etc.

  13. 日本応用経済学会2023年度秋季大会・討論者

    2023/11/04 - 2023/11/04

    Activity type: Academic society, research group, etc.

  14. 2020 Autumn Conference of Japan Association for Applied Economics (Discussant)

    2020/11/21 - 2020/11/21

    Activity type: Academic society, research group, etc.

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