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以往研究表明社会网络是动态演进的,社会网络中个人的社会结构、关系也是动态变化的;但是现有关于中心人物的研究多是从静态的视角,在某一时间上考察中心人物对新产品扩散的影响。因此本文从动态的视角,考察多个时间上中心人物对于新产品扩散的影响,结果发现:随着新产品导入时间的延长,中心人物对新产品扩散的影响逐渐增大。同时根据采用时间的先后,我们区分了两种不同的中心人物:创新型中心人物和跟随型中心人物,并发现:随着新产品导入时间的延长,创新型中心人物对新产品扩散规模的影响会逐渐增大,而跟随型中心人物的影响则会随着时间的延长而减小。
Previous studies show that the social network is a dynamic evolution, and the social structure and relationship of individuals in the social network also change dynamically. However, the existing researches on the central people mostly examine the central people’s influence on new products from a static perspective at a certain time The impact of proliferation. Therefore, from a dynamic perspective, this article examines the impact of central characters on the proliferation of new products over many periods of time. The results show that as the introduction of new products extends, the influence of central people on the proliferation of new products gradually increases. At the same time, we distinguish two different kinds of central people: the innovative center figure and the following center figure, and find out that with the introduction of new products, the influence of innovative center figures on the scale of new product proliferation Will gradually increase, while the impact of follow-centered center figure will decrease over time.