Optimizing and shortening multi-stage response time,one of supply chain management goals,is an effective approach to supply chain to respond rapidly the demand in market and to reduce lead time.At first,the concept of supply chain multi-stage response time was illustrated.Supposed the core firm is a coordinating center,this paper constructed a decision-making mechanism,and developed a bi-level programming approach to model the supply chain multi-stage response time.Finally,the model was tested and verified ...