Table 1 Reciprocity of 70 real weighted networks (see the SI for a description of the data), measured using ρNM under 3 null models (Weighted Configuration Model, Balanced Configuration Model, Weighted Random Graph) and comparison with r
ρWCM | ρBCM | ρWRG | r | |
|---|---|---|---|---|
Social networks (3 nets) | ||||
Most reciprocal | 0.75 ± 0.01 | 0.75 ± 0.01 | 0.75 ± 0.01 | 0.85 ± 0.01 |
Least reciprocal | 0.59 ± 0.01 | 0.58 ± 0.02 | 0.57 ± 0.02 | 0.78 ± 0.01 |
World Trade Web (53 nets) | ||||
Most reciprocal | 0.59 ± 0.03 | 0.57 ± 0.03 | 0.57 ± 0.04 | 0.79 ± 0.02 |
Least reciprocal | 0.43 ± 0.03 | 0.35 ± 0.05 | 0.36 ± 0.05 | 0.66 ± 0.02 |
Interbank networks (5 nets) | ||||
Most reciprocal | 0.07 ± 0.02 | −0.26 ± 0.03 | −0.26 ± 0.03 | 0.37 ± 0.01 |
Least reciprocal | 0.02 ± 0.01 | −0.40 ± 0.02 | −0.40 ± 0.02 | 0.30 ± 0.01 |
Neural network (1 net) | ||||
C. Elegans | 0.02 ± 0.01 | −0.11 ± 0.03 | −0.007 ± 0.01 | 0.08 ± 0.01 |
Foodwebs (8 nets) | ||||
Most reciprocal | −0.14 ± 0.26 | −0.67 ± 0.20 | −0.65 ± 0.20 | 0.17 ± 0.02 |
Least reciprocal | −0.34 ± 0.22 | −0.97 ± 0.02 | −0.97 ± 0.02 | 0.01 ± 0.02 |
