Fig. 1
From: Countries’ positions in the international global value networks: Centrality and economic performance
Example of an input-output tripartite weighted graph. The sets k 1, k 2, and k 3 represent three production stages. Only links from nodes in set k 1 to nodes in set k 2 and links from nodes in set k 2 to nodes in set k 3 are allowed. Above each link is indicated the value of its corresponding weight. The width of each link is proportional to the corresponding weight