Notice of RetractionOn impact of information sharing in the supply chain bullwhip effect

Based on APIOBPCS model, and treating forecast tache as an integral part of the supply chain, also transforming the traditional supply chain serial structure through information sharing, and adopting the methods of control-engineering based on z transformation and bullwhip effect measurement, the paper studied the impact of information sharing on the bullwhip effect of three-tier supply chain network which was comprised of manufacturer - distributor - retailor. The simulation results show that information sharing can reduce bullwhip effect, but it can not eliminate bullwhip effect. Finally, through discussing the impacts of logistics delay time parameters and the first-order exponential smoothing forecasting parameters on bullwhip effect, the measures to be used to weaken bullwhip effect is given.