摘要
提出了一个模仿传染模型,模型中包含有稳定从众系数b、参与交易的投资者比例y及股民的初始平均观念x1这3个参数.分析得出,在股市尚不成熟的中国市场,b相对较大,当y较小时就将引起一边倒的从众行为.并且发现,只有在一定的条件下(如领头羊的带动作用),使得参与交易者所占比例达到某种程度,股民中的模仿传染才会导致从众均衡.
A model of imitation and contagion is proposed. There are three parameters： the steady herd coefficient b, the proportion of traders y and the investors＇ initial average attitude x1. In the immature market of China, b is relatively biggish. When y is lesser, it can generate herd behavior leaning to one side. It is also found that only under some conditions, such as the drive of leaders, making the proportion of traders reach some degree, the equilibrium of herd behavior can be resulted in through the imitation and contagion within investors.
出处
《上海理工大学学报》
EI
CAS
北大核心
2006年第3期242-244,共3页
Journal of University of Shanghai For Science and Technology
基金
国家自然科学基金资助项目(70471066)
上海市重点学科建设资助项目(T0502)
关键词
模仿
传染
从众
投资者
imitation
contagion
herd
investor
