Where is the chokepoint? Mapping supply chain vulnerabilities using firmto-firm transaction data

Satoshi Inomata, Toru Hisamitsu, Fumihiko Imamura, Yuichi Kichikawa and Yoshiyuki Sagara

No 1004, IDE Discussion Papers from Institute of Developing Economies, Japan External Trade Organization(JETRO)

Abstract: This study proposes a novel approach to quantifying supply chain exposure to global risks with a particular focus on firms’ activities. The principal contribution of the study is that the proposed metric is specifically designed to address economic security issues, in which supply chain vulnerability is analyzed with respect to the level of network dependence on critical inputs and/or dominant foreign markets.

Keywords: global; supply; chain|choke; point|vulnerability|economic; security (search for similar items in EconPapers)
JEL-codes: C55 C67 F60 (search for similar items in EconPapers)
Date: 2026-03
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Published in IDE Discussion Paper = IDE Discussion Paper, No.1004. 2026-03

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