Table 5 Overlap of nodes and edges between the layers, as measured by the fraction of nodes/edges appearing in both layers over the aggregate number of nodes/edges of the two layers
From: Multilayer network analysis of the drugs development cycle in the global pharmaceutical industry
Drug pipeline | Supply chain | Ownership | |
|---|---|---|---|
(a) Node overlap between two layers | |||
Drug pipeline | 1.000 | ||
Supply chain | 0.730 | 1.000 | |
Ownership | 0.042 | 0.057 | 1.000 |
(b) Edge overlap between two layers | |||
Drug pipeline | 1.000 | ||
Supply chain | 0.081 | 1.000 | |
Ownership | 0.007 | 0.007 | 1.000 |
(c) Number of node overlap between two layers \(\left| V_{\alpha }\cap V_{\beta }\right|\) | |||
Drug pipeline | 1574 | ||
Supply chain | 1149 | 1149 | |
Ownership | 67 | 66 | 74 |
(d) Number of edge overlap between two layers \(\left| E_{\alpha }\cap E_{\beta }\right|\) | |||
Drug pipeline | 3318 | ||
Supply chain | 480 | 3079 | |
Ownership | 22 | 23 | 75 |