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Chapter 5 presents a comprehensive quantitative assessment of the security level of China’s semiconductor industry chain. It introduces an evaluation model integrating principal component analysis (PCA), entropy weighting, and the TOPSIS method, and details key methodological steps, including indicator standardisation, principal component extraction, weight determination, and final ranking based on relative closeness to ideal solutions. A longitudinal analysis covering the years 2015 to 2023 reveals an initial decline in supply chain security, followed by a steady recovery, culminating in the highest level recorded in 2023. A cross-sectional analysis of 29 provinces and municipalities in 2024 indicates that Guangdong ranks highest in security, while Shanxi ranks lowest, with the Eastern region leading overall. Segment-level trade analysis identifies downstream sectors as the most secure and upstream sectors as the most vulnerable. The chapter concludes with an in-depth assessment of import concentration risks, based on trade data from 2019 to 2024, highlighting structural vulnerabilities across countries and product categories that warrant strategic policy attention.

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Comprehensive Quantitative Assessment of the Security Level of China’s Semiconductor Industry Chain

  • 章节

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Tao Ma,
  • Tiantian Wang,
  • Jian Zhang

摘要

Chapter 5 presents a comprehensive quantitative assessment of the security level of China’s semiconductor industry chain. It introduces an evaluation model integrating principal component analysis (PCA), entropy weighting, and the TOPSIS method, and details key methodological steps, including indicator standardisation, principal component extraction, weight determination, and final ranking based on relative closeness to ideal solutions. A longitudinal analysis covering the years 2015 to 2023 reveals an initial decline in supply chain security, followed by a steady recovery, culminating in the highest level recorded in 2023. A cross-sectional analysis of 29 provinces and municipalities in 2024 indicates that Guangdong ranks highest in security, while Shanxi ranks lowest, with the Eastern region leading overall. Segment-level trade analysis identifies downstream sectors as the most secure and upstream sectors as the most vulnerable. The chapter concludes with an in-depth assessment of import concentration risks, based on trade data from 2019 to 2024, highlighting structural vulnerabilities across countries and product categories that warrant strategic policy attention.