中文摘要：

在供应链共享信息的背景下,考虑两个供应商和一个零售商组成的供应链结构,研究多供应商定价策略问题。根据期望利润最大化建立供应链信息共享博弈模型,依据纳什均衡求解出供应商和零售商的最优定价,比较信息共享和不共享下供应链各节点的效益。结果表明：信息精度越高,供应商和零售商的定价越高。若竞争强度不变,供应商和零售商的利润都会随着信息精度的增加而增加。信息共享对供应商有利但不利于零售商,供应商需要支付相应的信息报酬才能激励零售商的信息共享行为。

英文摘要：

In the context of supply chain information sharing , a supply chain structure composed of two suppliers and one retailer is considered to study the multi-supplier pricing strategy problem. According to the expected profit maximization, and a supply chain information sharing game model is established . Based on the Nash equilibrium,the optimal pricing of suppliers and retailers is calculat - ed,and the benefits of each node in the supply chain are compared. The results show that higher accuracy of information leads to high-er pricing of suppliers and retailers . If the competition intensity is unchanged, suppliers and retailers’ profits will increase with the ac-curacy of information increases . Information sharing is good for suppliers but not for retailers . Suppliers need to pay the corresponding information to encourage retailers to share information.