本文采用的行业分析模型是当今世界上最流行的、哈佛商学院迈克尔·波特教授的五力(Five Forces)分析模型。该模型通过对影响行业结构的五种力量的分析,清晰地刻画了行业的特征。这五种力量分别是:买方的竞价能力、供方的竞价能力、替代品的威胁、业内竞争的强弱以及新进入者的威胁。此后,学者们又发现存在着第六种重要的力量,即“互补品的影响”,因 The industry analysis model used in this article is the Five Forces analysis model currently being the most popular in the world by Professor Michael Porter at Harvard Business School. The model clearly characterizes the industry by analyzing the five forces that affect the structure of the industry. The five forces are: the buyer’s bidding ability, the supplier’s bidding ability, the threat of the substitute, the competition in the industry, and the threat of new entrants. Since then, scholars have found that there is a sixth important force, “the impact of complementary products,” because