Figure 5
(a) Rich–core for the Karate network defined by the maximum of \({k}_{r}^{+}\) at r = 10. The members of the core are the top 10 ranked nodes as shown in (b). (c) Example of \({k}_{r}^{+}\) of the trade relationship between WTO countries in 1980. The core of this network is the top 97 ranked nodes (dash vertical line). The diagonal line (light blue) shows the value where the top ranked nodes form a clique. (d) The weighted w+ for the WTO countries where w+ is related to the trade in dollars. The core is the top ten ranked nodes (dash vertical line). Notice that the vertical axis is in logarithmic scale.
