Public Library User Structure Study Oriented to Service Segment 面向服务细分的公共图书馆用户结构研究
The method of historical analysis and comparative analysis are used in concluding the Network Public Utilities 'market structures: vertical integration model, vertical segment model and networks competition model. 进而运用历史分析和比较分析的方法,指出三种网络型公用事业的市场结构模式,即纵向一体化模式、纵向分离模式和数网竞争模式。