Before revision:  We also find that ITN complete connectivity is mainly achieved through the presence of many weak links that keep commodity-specific networks together , and that the correlation structure existing between topological statistics within each single network is fairly robust and mimics that of the aggregate network.
After revision:  We also find that ITN complete connectivity is mainly achieved through the presence of many weak links that keep commodity-specific networks together and that the correlation structure existing between topological statistics within each single network is fairly robust and mimics that of the aggregate network.