网络化市场结构下证券市场传闻的扩散规律研究

市场传闻及其扩散对证券市场行情有着非常明显的影响，但其扩散又受到证券市场结构的影响。文章将股票时间序列的相关系数矩阵看作网络邻接矩阵，得到了股票市场的两类网络化结构模型；根据传闻扩散的特点，提出了市场传闻在股票网络化结构中的扩散模型，并解析了扩散分布与分布密度。通过实证数据发现，这两类网络化结构分别是具有全连通特征的加权网络和具有无标度特征的正负加权网络；将市场传闻的扩散规律应用于这两类加权网络可以得到，全连通加权网络上扩散规律服从Logistic模型，而无标度加权网络上扩散规律受“中心”股票的影响非常显著。最后本文给出了研究结论。

Research on Spreading Law of Stock Rumor under Network Market

The rumors and their spreading have very important effect on the trend of stock market,but their spreading is affected by the structure of stock market.We regard the matrix of correlation coefficient of stock time series as an adjacent matrix of network,the two kinds of correlation network model are constructed in this paper.According to the properties of rumor spreading,the spreading model of market rumors in financial network is presented in this paper,the analysis conclusion of spreading distribution and...