## 3 Prefabricated Building Supply Chain Resilience  
Definitions of supply chain resilience based on the existing literature are not consistent. [PERSON] and [PERSON] proposed that supply chain resilience refers to the ability to foresee risks, react to disruptions, and recover [25]. Supply chain resilience is the ability of an enterprise to maintain, adjust, and thrive in dynamic change [26]. [PERSON] defined supply chain resilience as the ability to actively organize and construct a network of supply chains to prevent accidental disruptions [27]. [PERSON] and [PERSON] described supply chain resilience as the ability to flexibly handle various variations in the supply chain [28]. Resilience is generally considered as the capacity of organizations to organize themselves in a variety of contexts, including interruptions in the form of disturbances and pressures, and to adapt to changing circumstances [29]. As the definition of supply chain resilience continues to evolve, scholars have viewed it from three dimensions: the ability to resist risk and preserve stability; the ability to restore itself from risky shocks; and the ability to adapt to changing environments. Considering the three aspects, the supply chain resilience of prefabricated buildings in this study is defined as the supply chain's ability to maintain stability during normal operations, recover quickly in response to risks, and adapt to changes in a dynamic environment [29; 30].  
Prefabricated assembly building products involve the supply and installation of a wide range of prefabricated components, requiring multiple levels of business units to coordinate and cooperate. Therefore, its supply chain network system is complex, risky, and uncertain in nature. This calls for supply chain resilience. Scholars have begun to focus on the influencing factors of supply chain resilience in prefabricated buildings. [PERSON] et al. screened 15 key influencing factors on the resilience of the supply chain of prefabricated buildings from six perspectives: supply chain level, design units, component manufacturers, logistics companies, contractors, and supervisory units [8]. [PERSON] et al. summarized five dimensions of prefabricated building supply chain resilience as influencing factors from the perspective of risk tolerance [10]. These factors include prefabricated component manufacturing, transportation and warehousing, assembly and construction, information, and partnership. In addition, [PERSON] et al. found that the manufacturing of components and the assembly construction have a remarkable impact on prefabricated building supply chain resilience, whereas the transportation and storage of components had a lesser impact, and the information and partner factors had a strong moderating effect on the above processes [10]. [PERSON] et al. summarized 15 key impact factors of supply chain resilience for assembly building supply chain, and 6 highly concentrated factors were identified: risk management, inventory management, contingency planning, visibility, environmental risk, and information technology [31]. [PERSON] et al. explored 18 crucial factors on the resilience of the assembly building supply chain in terms of external and internal environments [13].  
These studies provide solid foundations for understanding the influencing factors of prefabricated building supply chain resilience.