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我国股票市场连续性波动与跳跃性波动实证研究
id: 2140
Date: 20131014
status: published
Times:
Magazines
2010年第9期
Author
陈国进, 王占海
Content
以非参数化方法为理论基础,利用沪深300指数2006年至2008年的一分钟高频数据,分离出已实现波动率中的连续性波动和跳跃性波动的时间序列,进而检验了两种不同波动成分在股市不同周期内的统计性质,以及收益率对各种波动成分是否存在规模效应和杠杆效应。结论表明:股票指数的运行过程存在明显的跳跃聚集现象;我国A股市场的连续性波动与跳跃性波动比美国市场具有更长期的滞后相关性;杠杆效应在各个考察时期内均不具有显著性,规模效应在大部分时间内具有显著性,表明收益率取值的大小较取值的正负更能对各种波动成分造成影响,这种影响在牛市中更为明显。
JEL-Codes
Keywords
跳跃行为;非参数方法;连续性波动;跳跃性波动
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