新企业进入市场的决策不仅要考虑自身的运作成本,同时也要考虑市场上原有供应链网络中竞争者的影响.新进企业与网络中的竞争者构成闭环供应链网络下的一主多从Stackelberg对策问题.主方作选址决策,从方以利润最大化策略应对主方的潜在位置决策,利用均衡模型描述从方各决策者的竞争行为,分析他们之间的相互作用.
最后利用模型分析新企业的进入对竞争对手相关经济指标的影响,解决新企业在竞争环境中的设施位置设计问题.

The decision making of a new enterprise to enter market concerns not only its own operation cost but also the influence on its competitors within the supply chain network. The new entering enterprise and the competitors lead to a one-leader multiple-follower Stackelberg Strategy problem in a non-collaboration
 competition closed-loop supply chain network. When the leader makes facility location decision and the followers make  decisions to maximize their profits corresponding  to the potential facility location decision, the competitive behavior  of the decision makers in all parts can be described and their interactions can be analyzed by using an equilibrium model  proposed in the paper. Finally, based on the above model the entry impacts on the competitors can
 be analyzed by various  economic indicators  for the new enterprise to make the facility location  design under the competition environment.