Complex contagion

Complex contagion is the contagion that is substantially affected by the reinforcing signals. An extreme case is captured by the linear threshold model, where one adopts a piece of information, a belief, or behavior only when the number (or fraction) of neighbors with contagion crosses their threshold.

In complex contagion, hubs are not as important1 because hubs by themselves cannot create strong social reinforcement, which is critical in complex contagion.

Can a network facilitate complex contagion while preventing simple contagion (diseases)?