Barigozzi, Matteo; Fagiolo, Giorgio; Mangioni, Giuseppe - Laboratory of Economics and Management (LEM), Scuola … - 2010
We study the community structure of the multi-network of commodity-specific trade relations among world countries over the 1992-2003 period. We compare structures across commodities and time by means of the normalized mutual information index (NMI). We also compare them with exogenous community...