The Journal of Society for e-Business Studies (한국전자거래학회지)

Society for e-Business Studies (한국전자거래학회)
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Designing Index for Assessing Structural Vulnerability of Supply Chain considering Risk Propagation

위험 전파 모형을 고려한 공급사슬의 구조적 취약성 평가 지표 설계

  • Moon, Hyangki (Graduate School of Logistics, Incheon National University) ;
  • Shin, KwangSup (Graduate School of Logistics, Incheon National University)
  • Received : 2015.05.07
  • Accepted : 2015.05.18
  • Published : 2015.05.31
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Abstract

It is general that the impact of supply chain risk spread out to the whole network along the connected structure. Due to the risk propagation the probability to exposure a certain risk is affected by not only the characteristics of each risk factor but also network structure. It means that the structural connectivity among vertices should be considered while designing supply chain network in order to minimize disruption cost. In this research, the betweenness centrality has been utilized to quantitatively assess the structural vulnerability. The betweenness centrality is interpreted as the index which can express both the probability of risk occurrence and propagation of risk impact. With the structural vulnerability index, it is possible to compare the stability of each alternative supply chain structure and choose the better one.

공급사슬에서 발생한 위험의 영향력은 위험이 발생한 영역에만 국한되는 것이 아니라 연결구조를 따라 네트워크 전체에 퍼지게 된다. 이러한 위험의 전파 현상으로 인해 공급사슬은 네트워크 연결 구조에 의해 위험의 영향을 받게 될 가능성이 달라진다. 따라서 공급사슬 네트워크를 설계하는 시점에 구조적 연결성을 고려하여 내외부 위험의 발생에 따른 비용을 최소화할 수 있어야 한다. 일반적으로 매개 중심성은 위험의 발생가능성과 영향력의 확산을 설명하는 지표로 해석할 수 있다. 본 연구에서는 구조적 취약성 관점에서의 재해석과 수정을 통해 서로 다른 공급사슬의 취약성을 정량적으로 비교하고, 보다 안정적인 네트워크 구조를 선택할 수 있는 방안을 제시한다.

Keywords

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