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为揭示蔬菜价格波动与传导动力学特征,本文对2005年1月-2016年1月“菜篮子”产品批发价格指数的月环比数据进行粗粒化处理,将蔬菜价格涨跌数据转换成符号序列,构建了以模态关系转化为边、模态为节点的蔬菜价格有向加权复杂网络,并结合时间要素,对蔬菜价格波动网络的模态统计特征、核心模态、模态传导特征等进行了分析,明确了蔬菜价格波动网络的核心模态、蔬菜价格波动的主要模态转换时间特征,从而对调控蔬菜市场、稳定蔬菜价格提供了决策依据。
In order to reveal the characteristics of vegetable price fluctuation and conduction dynamics, this paper, from January 2005 to January 2016, analyzed the month-on-month data of the wholesale price index of vegetable basket products, and converted the vegetable price fluctuation data into symbols Sequence, we constructed a complex network of directed price-weighted vegetables with modal relations transformed into edges and modal nodes. Combined with time elements, we analyzed the modal statistical characteristics, core modes and modal conduction characteristics of vegetable price fluctuation network Analyzed the core modalities of the vegetable price fluctuation network and the main modal conversion time characteristics of the vegetable price fluctuation, which provided the decision-making basis for regulating the vegetable market and stabilizing the vegetable price.