| 上市公司股票更名效应的实证研究 |
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| 引用本文： | 邓建平,曾勇.上市公司股票更名效应的实证研究[J].漳州师院学报,2006,20(3):1-6. |
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| 作者姓名： | 邓建平 曾勇 |
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| 作者单位： | [1]漳州师范学院,经济系,福建漳州363000 [2]电子科技大学,管理学院,四川成都610054 |
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| 摘 要： | 采用事件研究法,对股票更名公告前后市场上的交易量和收益率反应进行研究.研究发现在股票更名前后存在超常交易量和超额收益率,市场对更名事件存在过度反应.另外,实证研究还发现不同原因引起的更名公告的交易量和收益率反应是不一样的,说明我国股市存在较严重的题材炒作和投机现象.
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| 关 键 词： | 更名事件 交易量 收益率 过度反应 |
| 文章编号： | 1004-468X(2006)03-01-06 |
| 收稿时间： | 04 26 2006 12:00AM |
| 修稿时间： | 2006年4月26日 |
An Empirical Study on the Effect of the Rename of Stocks from the Listed Companies |
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| DENG Jian-ping,ZENG Yong.An Empirical Study on the Effect of the Rename of Stocks from the Listed Companies[J].Journal of ZhangZhou Teachers College(Philosophy & Social Sciences),2006,20(3):1-6. |
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| Authors: | DENG Jian-ping ZENG Yong |
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| Abstract: | By using the method of event study, this paper studies on the reactions of the trading volume and returns around the period of the rename announcement of the stock. The abnormal trading volume and returns around the period of the rename of the stock and the overreaction of the market on the rename of the stock are found. And meanwhile, the fact that difierent causes can lead to different reactions of trading volume and returns on the rename announcement is also discovered. All these findings show that there are heavy promotional hype and severe speculation in our country's stock market. |
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| Keywords: | rename announcement trading volume returns overreaction |
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