Before revision:  Upon comparing the results of our study with the ones obtained by analysing the World Trade Web, important structural differences emerge, in particular, the bipartite representation of the latter is not characterized by a similar block-structure, as the modularity maximization fails in revealing (bipartite) nodes clusters.
After revision:  Important structural differences emerge upon comparing the Colombian firms-products network with the World Trade Web, important structural differences emerge, in particular, the bipartite representation of the latter is not characterized by a similar block-structure, as the modularity maximization fails in revealing (bipartite) nodes clusters.