Fig 5. Correlations of Countries’ PageRank.

Left: Correlated countries - Two countries are connected with a dark grey link if the Pearson coefficient between their PageRank time series is above $T_1^{+}=0.872$ if the coefficient is only above $T_0^{+}=0.78$ the link is light grey. Right: Anticorrelated countries - Two countries are connected in dark grey if their PageRank time series have a Pearson coefficient below $T_1^{-}=-0.88$ if the coefficient is only below $T_0^{-}=-0.79$ the link is light grey. In both the size of of the nodes is proportional to the strength of the node (regarding light edges).