Efficiency and robustness in evolutionary scale-free enterprise network

An important feature of many complex adaptive systems, both natural and artificial, is the structure and organization of their networks with efficiency and robustness. Scale-free was found in a variety of applications of complex enterprise network such as supply chain networks, industry district, business group, etc. Here, we present a method to evaluate efficiency and robustness of complex enterprise network using graph theory. We calculate efficiency and robustness in an evolutionary scale-free enterprise network. Through simulation, we found efficiency increased with the network growth. When network was added a large quantity of nodes through preferential linking, the network was robust in random case and worst case on condition that minority nodes were removed. So once an enterprise network grows to a certain size, the business stabilizes.