中文摘要：

关于技术创新合作与竞争的研究，过去大多数研究集中在基于Cournot模型的同质商品产量竞争的范畴，本文则在考虑不同企业的商品具有差异的情况下，在Hotelling模型的基础上构建了一个考虑技术创新溢出的三阶段模型，并基于此模型，对相互竞争的企业在选址、技术创新投入决策、产品定价以及企业收益方面进行了分析。

英文摘要：

Most of the theoretical literatures on technological innovation cooperation and competition have been confined to the model of Cournot model, where the competing firms are producing the homogeneous products. On the other hand, this paper builds a model with technological innovation spillovers based on Hotelling model, in which the products manufactured by different firms are discrepant, to analyze the locational choice, the input of technological innovation, the pricing of products and the profit of firms.