中文摘要：

本文运用机制设计理论中的博弈工具定义了图书馆在信息服务创新的博弈结构，基于改进的Hotelling模型考察了用户异质性对于图书馆信息服务创新微观动机的影响，分析了图书馆业界创新采纳的演化规律，证明了当演化均衡路径可达时，会强化或弱化图书馆创新的微观动机。文章为研究图书馆群体间的竞争性互动行为提供了一个理论框架。

英文摘要：

Using the game tools in the mechanism design theory, this paper defines the game structure of information service innovation in the library. Based on the improved Hotelling model, the paper reviews the influence of user heterogeneity on the micro-motives for information service innovation in the library. The paper also analyzes the evolution rules of innovation adopted by library industry and proves that libraries＇ micro-motives for innovation will be intensified or weakened when there is an evolution equilibrium pathway. The paper offers a theoretical framework for researching competitive mutual actions between libraries.