关键词: 电子采购, （s, S） 策略, 电子商务, 供应链

Abstract: As for (s, S) strategy, we establish a two-stage operation cost model which is used to compare and analyse the long-term collaboration strategy, e-procurement strategy and mixed procurement strategy of supply chain procurement management in e-commerce. Then, the optimal procurement quantities of them are given respectively. Finally, the validity of the model and arithmetic is validated through a case study.

Key words: E-procurement, （s, S） Strategy, E-commerce, Supply Chain