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人民币汇率的半参数预测模型研究
Id:2115
Date:20131014
Status:published
ClickTimes:
作者
蔡宗武, 陈琳娜, 方颖
正文
本文利用从2006年1月4日到2008年7月18日人民币对美元汇率中间价的日均数据,同时运用非参数函数系数模型和GARCH模型来分析人民币对美元汇率收益率与波动率的非线性时间序列特征。实证结果表明, 半参数组合模型具有较好的拟合以及预测效果,而且汇率管制政策变动的虚拟变量的估计系数显著不为0。跨度为25天的样本外预测显示:96%的收益率真实值都落在2.5%以及97.5%的非参数分位数回归预测线区间之间;参数GARCH(1,1)模型拟合的波动率所显示出的汇率震荡与实际情况一致。
JEL-Codes:
关键词:
汇率;GARCH模型;函数系数模型;非参数分位数回归
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