Testing pro-social hypothesis - Image analysis of Tokyo firebombing with machine learning

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K01464
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 06010:Politics-related
• Research Institution: Fukuoka University
• Principal Investigator: Harada Masataka 福岡大学, 経済学部, 准教授 (30738810)
• Co-Investigator(Kenkyū-buntansha): 伊藤 岳 大阪公立大学, 経済学部, 准教授 (80773895)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: レガシー / 空襲 / ソーシャル・キャピタル / 向社会性 / フィールド実験室実験

Outline of Final Research Achievements

This study conducted an interactive economic experiment online between people from different regions and found that when people from the same region played against each other, there was no difference in the amount of money transferred to the other regardless of the degree of air raid damage among those who had lived in the region for longer periods of time, while those who had lived in the region for shorter periods of time transferred less money than those in regions with more air raid damage. This suggests that the formation of social capital is more difficult in areas with more raid damages. The study also indicated that in areas where strong social capital existed prior to the disaster, the loss of such capital may outweigh the war's prosocialization effect. Through a novel Internet experiment, this study reveals how past wars affect current social preferences.

Free Research Field

政治学、公共政策

Academic Significance and Societal Importance of the Research Achievements

この研究は、戦争や災害が地域社会に与える影響を詳細に調査し、その結果を社会全体に広めることを目指した。具体的には、空襲被害が多い地域では、地域の絆や信頼関係の形成が困難であることを明らかにした。また、被災前に強固な人間関係が存在していた地域では、その損失が戦争による社会参加促進効果を上回る可能性があることを示した。これらの知見は、災害復興や地域コミュニティの再建に役立つ可能性がある。さらに、この研究は、インターネットを用いた新たな実験手法を開発し、その有効性を示すことで、新たな研究方法を提供した。