The article constructs a model of system dynamics for the business website information ecosystem, and educes that the user scale, profit model and network transactions are the intrinsic motivation factors which affect the evolution of the business website information ecosystem, while the risk investigation and the competitors are the external key factors which affect the evolu- tional development of business website information ecosystem.%文章构建商务网站信息生态系统的系统动力学模型,得出用户规模、盈利模式和网络交易量是影响商务网站信息生态系统演进的内在动力,而风险投资、竞争对手是影响商务网站信息生态系统演化发展的外部关键要素。
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