The role of primary processing in the supply risks of critical metals

The role of primary processing in the supply risks of critical metals
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初级加工在关键金属供应风险中的作用

DOI:
10.1080/09535314.2017.1295923
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发表时间:
2017
影响因子:
2.5
通讯作者:
Yosuke Shigetom
Yosuke Shigetom
中科院分区:
经济学4区
文献类型:
--
作者:
Keisuke Nansai;Kenichi Nakajima;Sangwon Suh;Shigemi Kagawa,Yasushi Kondo;Wataru Takayanagi;Yosuke Shigetom

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本研究旨在通过对日本三种关键金属(钕、钴和铂)的案例研究,了解初级加工(即采矿后的第一个阶段)在供应风险中的作用。我们将“足迹”概念与多区域投入产出模型相结合,量化了日本经济对此类风险的直接和间接脆弱性。考虑到与初级加工商相关的供应风险,我们发现与钴和铂相比,日本最终消费者面临的钕供应风险相对较高。我们的研究表明,金属供应链的初级加工阶段可能对整体供应风险产生重大影响,这表明在理解和减轻供应链脆弱性时应适当考虑这一阶段,例如通过供应商多元化和替代材料开发。
This study seeks to understand the role of primary processing, i.e. the first post-mining stage, in supply risk, by means of a case study on three critical metals (neodymium, cobalt, and platinum) in the context of Japan. Applying the ‘footprint’ concept with a multiregional input–output model, we have quantified the direct and indirect vulnerability of the Japanese economy to such risks. Considering the supply risks associated with primary processors, we find that Japanese final consumers are exposed to relatively higher supply risks for neodymium as compared with cobalt and platinum. Our study shows that the primary processing stage of a metal’s supply chain may contribute significantly to the overall supply risks, suggesting that this stage should be taken into due account in understanding and mitigating supply-chain vulnerability through, e.g. supplier diversification and alternative material development.
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