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投资者行为与期货市场波动:基于OLG模型和高频数据的理论与实证

, PP. 91-101

Keywords: 投资者行为,OLG模型,动量交易,反转交易

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Abstract:

?本文是针对投资者行为与期货市场波动性关系的研究,首先将宏观经济学中的世代交叠模型(OLG)引入期货市场,建立了基于期货合约价格的投资者交易行为模型,以及将模型扩展到完全信息和部分信息的情况并求解出均衡解,在推导命题基础上建立了两个假说并使用铜期货合约日内每笔交易数据对其做了实证研究。结果表明:(1)本文建立的两期世代交叠模型显示,期货合约价格的波动与债券的无风险利率,投资者的风险厌恶系数,合约供给的状态以及风险溢价的波动有关;(2)期货市场上富有信息的投资者(如机构投资者),通常采用反转交易模式;(3)期货市场上缺乏信息的投资者(例如散户),则通常采用动量交易模式。而这一结论显示,中国期货市场投资者与股票市场投资者在交易行为上存在明显区别。

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