AbstractAbout the competitive advantage, academe and entrepreneur are always studying and discussing this question. Different persons have different opinions, some people think product quality and price are the competitive advantages of enterprise, and others think service, famous brand and innovation are. In this paper, I will discuss this question in other means. I think time is also the competi...学位：工商管理硕士院系专业：管理学院工商管理教育中心_工商管理硕士(MBA)学号：20011502
