Research on the robustness of B2B2C supply chain logistics-order flow composite network
Based on the percolation theory,considering the seepage capacity of nodes and the in-fluence of upstream and downstream failure nodes,the upstream and downstream cascading fail-ure strategy of composite network is designed.The robustness of B2B2C composite network is e-valuated by the average shortest path length,the maximum connected subgraph rate and the global efficiency of the network.The simulation shows that with the increase of seepage capacity coefficient,the robustness of the network is enhanced.The composite network is of poor resist-ance to deliberate attacks,the average shortest path length,global efficiency and maximum con-nected subgraph rate decrease to 0,and the network is basically paralyzed,while it has good ro-bustness against random attacks.Compared with the logistics network,the average degree of the composite network is 40.6％lower,the power index is 12.1％higher,and the robustness is bet-ter.
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