Self-organized scale-free networks generated via Merging-and-Creation dynamics with preferential attachment

We study a self-organized scale-free network model generated using the Merging-and-Creation dynamics with preferential attachment. We show analytically that the introduction of preferential attachment has minimal impact on the steady-state degree distribution. However, we find also that the preferential attachment gives rise to a hierarchical modular structure and degree disassortativity, commonly found in technological networks.