中文摘要：

研究了制造商向顾客提供两种产品，且两种产品在价格、质量和服务三个方面进行竞争的均衡与协调策略问题．通过构建一条包括制造商和顾客的供应链模型，分析了协调情形和无协调情形下两种产品竞争的均衡解．运用数值仿真讨论了各种参数变化带来的影响，结果表明：协调策略是制造商的占优策略，且两种产品存在越大的价格差或存在明显的质量成本优势或存在明显的服务成本优势时，采取协调策略获益幅度越大；协调策略可以弥补产品在质量成本或服务成本方面的劣势，但从整个市场的发展来说，无协调策略却能加强市场竞争激烈程度，提高产品平均质量和平均服务，使顾客受益，市场中顾客总量增加．

英文摘要：

This paper considers a manufacturer who provides two products competing on three aspects： Price, quality and service, and discusses competition equilibriums and the coordination strategy. Through formulating a simple supply chain consisting of a manufacturer and a customer, we analyze the competition results in two scenarios： The uncoordinated scenario and coordinated scenario. By a numerical simulation analysis, we dis- cuss how competition results are influenced by the parameters. The results indicate that coordinating products decisions is a dominant strategy for a manufacturer. Coordination can bring more benefits when there is a big- ger gap between the two products prices, or when the products have more advantages of quality or service cost. The coordination strategy can compensate for disadvantages of product quality cost or service cost. However, from the perspective of the whole market development, noncoordination can enhance the competitive intensity, which leads to higher product quality and service levels. Customers can benefit a lot from the noncoordination strategy, and hence the amount of customers is increasing.