Study on efficiency of supply chain based on single revenue sharing contract and double contracts combination

Supply chain contract plays an important role in the coordination of members of supply chain. The existing application of supply chain contracts is mainly based on a single contract, which exist some limitations. From the point of combination of supply chain contracts, we establish two models based on system dynamics, one is revenue sharing contract model and the other is the combination model consisting of quantity discount contract and revenue sharing contract. Then, we use Vensim to simulate. The results show that the combination model is more conducive to the overall efficiency of the supply chain. This paper provides a new way for the study on supply chain coordination.