2011年,居民消费价格指数高位回落,全年上涨5.4%,但物价上涨的压力仍然存在。本文用复杂网络紧密度和介数概念,分别从两种角度定义一种商品对其余商品的影响力,并将影响力大的商品定义为主导节点。构建价格波动网络模型,引用广州市CPI统计范围内的34种消费品价格指数,分析影响力大的商品,进行对比分析,从而提出了调控消费品价格的政策建议。 In 2011, the consumer price index retreated at a high level, rising 5.4% for the whole year, but the pressure of rising prices still exists. This paper defines the influence of one commodity on the remaining goods from two perspectives, using the concept of complexity and medium of complex network, and defines the dominant commodity as the dominant node. Constructing a network model of price volatility, citing 34 kinds of consumer price indices within the range of CPI statistics of Guangzhou City, analyzing influential products and making a comparative analysis, and putting forward policy suggestions on how to control the prices of consumer products.