Table 3. The Pearson correlation of the GRC and defined by Liu et al.

Type of the networks
Regulatory	0.843
Trust	0.974
Food web	0.69
Metabolic	−0.225
Electric	0.503
Internet	0.632
Organizational	0.337
Language	0.933

With only one exception, all correlations are positive and many of them are above 0.6, i.e., the GRC and are positively correlated.