Response to supply chain network disruption risk through link addition: Resilience enhancement strategies based on ternary closure motifs

In the context of global economic turbulence and unstable supply, supply chain networks (SCNs) are more susceptible to risks that may cause SCNs operation disruption, leading to a broader range of economic losses. How to effectively improve supply chain network resilience (SCNR) to cope with the disruption risks is an urgent problem that scholars and managers need to solve. This paper comprehensively measures SCNR from two aspects, i.e. network connectivity and network communicability, and proposes link addition strategies based on the stability of ternary closure motif structure to enhance SCNR. Meanwhile, considering the community attributes of links, the community-based ternary closure motif link addition strategies are further designed to provide more matching recommendations for SCNs. The results show that: 1) the proposed low degree ternary closure motif link addition strategy (LDM) can more effectively enhance SCNR, compared to the current link addition strategies; 2) the connectivity enhancement effect of community-based link addition strategies on SCNs depends on network size; and 3) for network communicability, intra and inter low degree community ternary closure motif link addition strategy (IAELDM) is more effective. Finally, a case study of Build Your Dreams (BYD) automotive supply chain network further validates the effectiveness of the proposed strategies.