它分为两种：内部偏好图与外部偏好图。
It has 2 types mapping: Internal Preference Mapping and External Preference Mapping.
他说，现在的外部环境非常艰难，消费者的偏好发生了明显变化。
'This is a very challenging external environment, reflecting a seismic shift in consumer preferences, ' said Ford's Mr. Farley.
该模型全面考虑了局域内以及局域外部加点、偏好链接以及链接随机消亡等诸多因素，并引入三角形形成机制调节模型的簇系数。
This model took general consideration of adding new nodes, preferential attachment and random death of nodes in or between local-worlds, and introduced triad formation to tune the clustering.
其次，修正了现有研究前提假设的缺陷：消费者对不同网络的外部性具有一致偏好。
Secondly, this dissertation premises the assumption deficiency of the existing research: consumers have consistent preference to the externality of different networks.
研究发现，影响产业多样化、专业化的主要因素有要素禀赋、需求偏好、规模经济、外部性、运输成本等。
We found that the factors which affect the industrial specialization and diversification are factor endowment, demand preferences, economies of scale, externalities, transport costs, and so on.
在具有网络外部性特征的市场中，潜在厂商更偏好进入在位厂商相互不兼容的市场。
And during the market which has the characteristic of network externality, the potential firm tends to enter the market where the incumbent firms take the strategy of products incompatibility.
在具有网络外部性特征的市场中，潜在厂商更偏好进入在位厂商相互不兼容的市场。
And during the market which has the characteristic of network externality, the potential firm tends to enter the market where the incumbent firms take the strategy of products incompatibility.
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