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作 者:张强[1] 刘善存[2] 邱菀华[2] 林千惠[2]
机构地区:[1]北京化工大学经济管理学院,北京100029 [2]北京航空航天大学经济管理学院,北京100191
出 处:《管理科学学报》2013年第7期55-65,共11页Journal of Management Sciences in China
基 金:国家自然科学基金资助项目(71071010;70831001)
摘 要:利用生存分析理论建立一个高频交易强度模型,分析随市场流动性特征的改变,知情与非知情交易强度的变化.选取上证流动性高和低两组股票数据作为对照样本,检验知情、非知情交易在不同流动性股票中的表现.结果发现:两组股票中,随着交易量的增加知情交易强度增大,非知情交易强度减少;高流动股票中,随价差增大知情交易强度增加,非知情交易强度减少;低流动股票中,随价差增大知情交易强度减少,非知情交易强度增加.同时发现,两组股票,知情交易间正相关;高流动股票中,知情交易与非知情交易间负相关;而低流动股票中,知情交易与非知情交易间正相关.Based on the survival analysis theory, we split the effects of market characteristics on the trading intensity into a transitory (uninformed) and a permanent (informed) component. We test the effects of market status on informed and uninformed trading using the high frequency data of 10 liquid stocks and 10 illiquid stocks of SSE. These data cover from June, 2006 to September, 2006. Our results show that, when trading volume increases, the trading intensity of informed (uninformed) trading increases (decreases) in the two markets. When the spreads increase, the trading intensity of informed (uninformed) trading increases (decreases) in the liquid market, while the trading intensity of informed (uninformed) trading decreases ( increases) in the illiquid market. Moreover, we observe that the informed trades are highly persistent in the two markets, but that the uninformed trades respond negatively to the informed trades in the liquid market and the uninformed trades respond positively to the informed trades in the illiquid market.
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