Figure 9
A network diagram illustrating the connections between different keywords. The central nodes include 'sustainable development', 'circular economy', and 'digital technologies', which are interconnected with various other keywords. Keywords such as 'industry 4.0', 'artificial intelligence', 'supply chains', 'environmental impact', and 'business models' are prominently featured. The diagram uses different colors to represent clusters of related keywords, with lines indicating the strength and frequency of their connections. The central nodes have the highest number of connections, indicating their importance in the network.Keywords mapping. Sources: VOSviewer, authors’ collaboration