Study on the models of cross-chain inventory collaboration in the cluster supply chain

Considering the cross-chain inventory collaboration in the cluster supply chain, this paper discussed and comparatively analyzed two models: the one is cross-chain inventory complementarily between enterprises of same tier and the other one is cross-chain inventory complementarily between enterprises of different tiers with the methods of system dynamics simulation. By the analysis of the simulation data, the paper found that using inventory complementarily between enterprises of different tiers can lead to a higher satisfaction rate of customer demand without big changes of inventory and can maintain this large satisfaction rate stably. Therefore, from the perspective of the inventory and customer satisfaction rate, the complementarily model between enterprises of different tiers is superior to the model between enterprises of same tier.