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دسته بندی:
پایگاه داده - Database
سال انتشار:
2017
عنوان انگلیسی مقاله:
A graph theory-based methodology for vulnerability assessment of supply chains using the life cycle inventory database
ترجمه فارسی عنوان مقاله:
یک روش مبتنی بر نظریه گراف برای ارزیابی آسیب پذیری زنجیره های تامین با استفاده از پایگاه داده موجودی
منبع:
Sciencedirect - Elsevier - Omega, Corrected proof: doi:10:1016/j:omega:2017:03:003
نویسنده:
Jun Nakatani a,∗, Kiyotaka Tahara b, Kenichi Nakajima c, Ichiro Daigo a, Hideaki Kurishima d, Yuki Kudoh b, Kazuyo Matsubae e, Yasuhiro Fukushima e, Tomohiko Ihara f, Yasunori Kikuchi g, Asako Nishijima h, Yuichi Moriguchi a
چکیده انگلیسی:
Owing to the growing number of risk factors that can be triggered by natural and manmade disasters,
management of disruption risks in supply chains has become increasingly significant. Since the market
concentration of raw material suppliers is a determinant of the supply disruption risk, identification
of raw materials vital in a supply chain and concurrently whose markets are highly concentrated will
help supply chain risk management. In this study, we develop a graph theory-based methodology for
assessing supply chain vulnerability to disruption risks by using the life cycle inventory (LCI) database
as a data source for nationwide supply chains. A supply chain structure, i.e., raw material-to-product
links and overall chain, is modeled by a directed graph and its adjacency matrix, adapted from physical
input–output data in the LCI database. The reachability components in the supply chain are identified by
Boolean matrix calculations. Vulnerability indicators for each reachability component are determined on
the basis of market concentration as measured by the Herfindahl–Hirschman Index in terms of domestic
production regions and import partners as a proxy for the extent of supply disruption risks. The method
ology developed is demonstrated using the national-level LCI database of Japan, and vulnerability factors
are presented for 23 types of Japanese synthetic resins.
Keywords: Supply chain risk management | Disruption risk | Supply chain vulnerability | Graph theory | Life cycle inventory database | Market concentration
قیمت: رایگان
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