Barigozzi, Matteo; Fagiolo, Giorgio; Mangioni, Giuseppe - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 11, pp. 2051-2066
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...