Updated on 2025/04/17

Information

 

写真a

 
YAGI MICHIYUKI
 
Organization
Urban Insitute Lecturer
Title
Lecturer
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Papers

  • The spillover effects of rising energy prices following 2022 Russian invasion of Ukraine

    Yagi, M; Managi, S

    ECONOMIC ANALYSIS AND POLICY   77   680 - 695   2023.3   ISSN:0313-5926

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    Publisher:Economic Analysis and Policy  

    This study examines how the rise in energy prices following the Russian invasion of Ukraine (which began on February 24, 2022) has spread to other sectors using the monthly input–output model (56 sectors in 44 countries). The estimated results demonstrate that if prices increase by 20% exclusively in Russia's mining and quarrying (M&Q) sector, there will be almost no global effect. However, if prices increase by 20% in every M&Q sector around the world, global prices (the weighted average across all sectors) will rise by 3.15%, damaging 6.83% of monthly GDP at the pre-invasion level as a surplus loss ($551,080 million per month). Because oil prices rose for almost five months from February 28 to August 3, 2022, the world suffered five times this damage, or 2.85% of annual GDP ($2.7 trillion). This scenario is roughly equivalent to a price change of 5 times in the Russian M&Q sector alone.

    DOI: 10.1016/j.eap.2022.12.025

    Web of Science

    Scopus

Research Projects

  • Development of ESG investment model

    Grant number:21K01698  2021.4 - 2026.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    八木 迪幸

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    Grant type:Scientific research funding

    本研究の目的は、日本企業のESG(環境E・社会S・ガバナンスG)実践(開示)が企業業績に与える影響を検証するESG投資モデルの開発を行うことである。この投資モデルでは、ESGスコアが高い日本企業は、株価リターンとリスク(株価変動率)がどれだけ変わるかを、包絡線分析(DEA)を用いて分析する。なお、この分析結果の補足検証として、市場ベース指標(トービンのq)と会計ベース指標(利益率)を用いた線形モデルで分析を行う。

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