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A Research into the Distribution Characteristics of Securities Return Based on Irrational Trading Behavior
Author(s): 
Pages: 149
Year: Issue:  2
Journal: Economic Survey

Keyword:  非理性交易者反馈交易尖峰厚尾分布收益自相关性;
Abstract: 笔者使用一个异质交易者并存的市场收益模型,证明非理性的反馈交易导致证券收益的长程相关,收益序列的长程相关性引起了异常扩散,由于扩散的方差大于标准布朗运动的方差,造成收益概率密度函数的厚尾现象.在模型的基础上.利用蒙特卡罗仿真方法生成了股市收益时间序列样本,计算了仿真数据的蜂度、尾指数和自相关系数,并与我国上证指数真实收益序列的相应指标进行了对比分析.模型的仿真结果显示了证券收益的尖峰厚尾特征以及收益序列的自相关性.
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