사회연결망 분석을 이용한 내연기관차와 전기자동차 부품공급 네트워크 비교 분석

초록

This study analyzes the supply chain of a car manufacture and a supplier (number of parts supplied by supplier, supplyper part) by comparing internal combustion engine model (T car model 1.6 gasoline turbo, Noblesse) and electric motormodel (T car model Noblesse). Social network analysis was conducted to observe how the centrality of suppliers (nodes) ofinternal combustion and electric vehicles changes. More specifically, by comparing the strength of the whole network, theengine transmission of the internal combustion, the PE (Power Electric) of the electric vehicle, and the battery parts indetail, how the centrality of eigenvector changes, and how the network structure changes according to the characteristics ofeach item. As a result, the eigenvector centrality of the electric vehicle is several times larger than that of the internalcombustion model. Secondly, the network connection strength of electric vehicle core component suppliers was muchstronger than that of the internal combustion model. Finally, as the dependence on battery cell suppliers for electric vehiclesincreases, the negotiation power within the parts supply system of automobile manufacturers is weakening, leading to thehorizontal division of labor. This study aims to provide insights on the supply network following the future transition ofelectric vehicles

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