Buyback contract model in supply chain under the asymmetrical cost information

Buyback contract coordination based on the asymmetric cost information was studied when the market demand was affected by the market price elasticity.Based on the analysis of supply chain under symmetric information model of buyback contract coordination,the asymmetric information model of buyback contract coordination was designed.And through adjusting the cost and the price parameters,this model makes the cost information be reflected.And makes the supply chain system to obtain the coordination and the best value.Finally,the example was used to verify the model to be scientific and feasible.