7. Conclusions
By reflecting the social network perspective put forward by Grannovetter (1973, 1992) and Burt (1992), this paper considers how social networks can support the implementation of sustainable SCM. Social networks are socially constructed and, while found in many cultures, there has been a focus on Confucian cultures, and specifically guanxi networks. The systematic literature reviews have provided insights into the current state of the art in the constructs of guanxi networks and their influence on the flow of supply chain capital and sustainable SCM. The constructs of social networks in Confucius cultures are reflected as ganqing, renqing, xinren and mianzi, which affect supply chain practices substantially. Regarding to the research topic, there is a good range of research that address the influence of guanxi networks on the flow of supply chain capital, namely, social, financial and human capital, but a paucity of work that considers sustainable SCM explicitly. General works cover some aspects of sustainable SCM, but opportunities remain for exploring these aspects in more depth.
The proposed theoretical framework and propositions give awareness of how formal institution and personal ties affect the implementation of environmental and social practices in a supply chain. Institutional forces for sustainability have provided the logic of sustainable practices in SCM, whereas implementations in different regions are socially embedded. Research calls for the acknowledgement of the uncertainty adhered in a complex environment (Alexdander et al., 2015). The framework is inherent with this complexity, finding ways to increase network economics, trust and network governance for companies and their supply chains to implement environmental and social practices.