Estimation of Supply Chain Network Disruption of Companies Across the Country Affected by the Nankai Trough Earthquake Tsunami in Kochi City

Ogawa, Y., Akiyama, Y., Yokomatsu, M., Sekimoto, Y., & Shibasaki, R. (2019). Estimation of Supply Chain Network Disruption of Companies Across the Country Affected by the Nankai Trough Earthquake Tsunami in Kochi City. Journal of Disaster Research 14 (3) 508-520. 10.20965/jdr.2019.p0508.

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Abstract

Using various types of big data on the Nankai Trough earthquake and tsunami that struck Kochi, we describe a method of simulating how economic damage to inter-enterprise transactions propagates through the supply chain and how subsequent recovery occurs. First, we enter the human losses and material damage caused by the earthquake and tsunami to estimate the material damage and labor capital loss of each enterprise based on the position information of employees. Next, we simulate the damage repercussions regarding production capacity over the entire supply chain through many tiers, and extract bottlenecks of company risk within the supply chain. It was found that bottleneck companies tend have a slow recovery rate as compared to other affected companies. They also had a tendency of being in the construction, manufacturing, wholesale, and service industry sectors, and small in scale.

Item Type:	Article
Uncontrolled Keywords:	Bottleneck company; GPS mobile phone; Production function; Reconstruction process; Supply chain management
Research Programs:	Risk & Resilience (RISK)
Depositing User:	Luke Kirwan
Date Deposited:	25 Jul 2019 05:54
Last Modified:	27 Aug 2021 17:31
URI:	https://pure.iiasa.ac.at/16005

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