# Research on Supply Chain Network Resilience: Considering Risk Propagation and Node Type
## 5 Discussion  
Through the analysis of the above sections, we summarize several important takeaways.  
**(1). Better structure of an SCN is very important to improve its resilience**  
The scalar indices record the distribution of node degrees in the network, and the clustering coefficients are used to analyze the aggregation of nodes in the network [69]. Our results show that the larger the scalar indices of an SCN are, the higher the SCNR and the lower the impact of risks. The larger the clustering coefficient of an SCN is, the lower the SCNR and the higher the impact of risks. The network characteristics of SCNs have a huge impact on SCNR. Managers adjust the structure of an SCN to improve the SCNR and reduce the impact brought by risks.  
When risk propagation occurs in an SCN, managers can reduce transactions with firms with larger operations, making the scale of business of different firms more balanced. Enterprises need to scale down their operations and avoid business expansion. This will enable them to enhance the scalar index network characteristics of an SCN and allow it to have greater resilience. A higher clustering coefficient in an SCN means a higher  
Figure 12: The resilience of SCNs for different types of initial risk nodes when using the resilience metric \(Y\).  
Figure 13: The resilience of SCNs for different types of initial risk nodes when using the resilience metric \(S\).  
transparency of information in the network. Managers should enhance communication and cooperation among enterprises and share information resources. Enhancing the flow of information between companies and improving corporate transparency can reduce the impact of risk and increase the resilience of SCNs. However, the SCN cannot be too transparent, which can lead to conflicts and internal management difficulties, undermining the SCN's resilience.  
**(2). The ratio of node types in an SCN has a significant impact on SCNR**  
The ratio of node types in an SCN records the distribution information of enterprises with different node types. The greater the difference in the number of enterprises with different node types is, the less resilient an SCN is. In an SCN, although the functions of enterprises in different types are different, they are all equally important and indispensable. Enterprise managers should consider the whole picture and should not favor a certain enterprise node type in have business transactions. Enterprise managers should choose as many different types of partners as possible to avoid the lack of a certain partner and ensure they can function properly.  
**(3). The two infection methods of the initial node type do not affect SCNR**  
We used two infection methods, specifically node type and randomly selected node type, to select the initial risky nodes. The results show that the two node-type-specific infection methods do not affect the SCNR. Although the types of the initially infected nodes are different, they both affect the neighboring node states, and the initial node types have no effect when calculating the SCNR in a steady state. SCNR is a capability of the SCN itself, and node types are additional information that we attach to the nodes. Managers should pay high attention to each partner enterprise in an SCN and treat them equally when facing both types of risk attacks.