Updated on 2026/05/09

写真a

 
OGA Yusuke
 
Name of department
Faculty of Tourism, Department of Tourism
Job title
Assistant Professor
External link

Education

  • 2023
    -
    2026

    Kyushu University   Graduate School of Economics   経済システム専攻 博士後期課程  

  • 2022
    -
    2023

    Kyushu University   Graduate School of Economics   経済システム専攻 修士課程  

  • 2018
    -
    2022

    Kyushu University   経済学部   経済経営学科  

Academic & Professional Experience

  • 2026.04
    -
    Now

    Wakayama University   Faculty of Tourism   Assistant professor

Association Memberships

  • 2021.03
    -
    Now

    日本LCA学会

Published Papers

  • Triple bottom line analysis of the decline in foreign tourist demand in Japan due to the COVID‐19 pandemic: Counterfactual structural decomposition approach

    Yusuke Oga, Shigemi Kagawa

    Journal of Industrial Ecology ( Springer Science and Business Media LLC )  29 ( 2 ) 518 - 530   2025.01  [Refereed]

    　View Summary

    Abstract

    This study developed a consumption‐endogenous input–output analysis framework and a novel counterfactual structural decomposition analysis (SDA) framework to assess the economic, social, and environmental effects of the 2020 decline in foreign tourists due to the COVID‐19 pandemic. The results show a pandemic‐induced loss of 33 million tourists, resulting in 3.44 trillion JPY in value‐added losses, employment declines for 868,976 people, and environmental benefits of an 11.6 Mt‐CO <sub>2</sub> emissions reduction. Sectors hit the hardest include hotels, eating and drinking services, and wholesale and retail trade. The deterioration revealed a 100% reduction in value added from foreign visitors, whereas shifts in production contributed to a 3.6% increase in CO <sub>2</sub> emissions. This study recommends government intervention, focusing on stipends for sectors with the highest value‐added losses and employment declines, as well as support funds for sectors that reduce environmental impact.

    DOI