报告题目：The Analysis of Global Supply Chain in Major Industries using International Input-Output Tables
报告时间：2025年7月10日
报告地点：经济管理学院 B312
报告人： 长谷部勇一 教授
邀请人：徐照光 副教授
报告人简介：
报告人：长谷部勇一 教授
国籍：日本
专业研究方向：经济学
主要成就：长谷部勇一1954年生于日本东京，毕业于一桥大学。自1984年4月起在横滨国立大学经济学科任教，1996年晋升教授。历任经济学部长、研究生院研究科长、信息基础中心主任等职，并于2015年至2021年担任该校校长，展现出卓越的领导才能与学术管理能力。2022年4月，他重返一桥大学，先后担任理事及现任常勤监事。此外，他还曾身兼中国投入产出学会顾问、经济企划厅经济研究所客座研究官、神奈川联合国儿童基金会协会会长等多项社会职务，现任神奈川县综合计划审议会会长。凭借深厚的学术造诣，积极推动国内外学术交流与合作，在业界声誉颇高。
报告内容和摘要：
The rise of emerging economies such as China and India since the 2000s has accelerated global supply chain development. However, this trend has slowed due to COVID-19, Russia’s invasion of Ukraine, and increasing U.S.–China tensions, prompting shifts toward trade bloc formation. As countries now seek to rebuild resilient supply chains for economic security, the role of international input-output tables is gaining renewed attention.
This study focuses on key industries—transportation equipment, electronic machinery, and computers—and analyzes the evolving international division of labor and production technologies. Building on Professor Iwao Ozaki’s concept of the Unit Structure, we propose two extensions: the Extended Unit Structure (EUS), which incorporates capital and labor into conventional input-output analysis, and the International Extended Unit Structure (I-EUS), which visualizes supply chain dynamics for 24 countries and regions from 2000 to 2022 using 3D graphs.
Through I-EUS, we identify critical effects in global supply chains, including intra-regional multipliers, spillovers, and feedback loops. The results reveal increasing regionalization of value chains, consistent with Professor Baldwin’s assertion that “global value chains are not yet global.”In the transportation equipment sector, countries like Japan, China, India, and Russia exhibit strong domestic self-sufficiency, while others such as Mexico and Canada rely heavily on U.S. intermediate goods. A notable trend is the rising dependence on China across all nations, alongside a post-2020 decline in reliance on Russia—except by China and, to a lesser extent, Germany.
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