大宗交易、信息透明度與崩盤風險
發(fā)布時間:2018-09-03 16:15
【摘要】:本文選取我國A股上市公司2002-2015年的數(shù)據(jù)作為研究樣本,分析了大宗交易是否會影響上市公司的股價崩盤風險,并進一步考察了大宗交易在信息透明度存在差異的樣本中其降低股價崩盤風險作用所存在的差異。研究發(fā)現(xiàn):(1)大宗交易與上市公司的股價崩盤風險之間存在顯著的負相關(guān)關(guān)系,當上市公司發(fā)生大宗交易成交、大宗交易成交金額越大時,上市公司的股價崩盤風險越低,大宗交易作為一種外部市場交易機制能夠降低上市公司的股價崩盤風險;(2)在進一步控制了上市公司自身的信息透明度變量之后,大宗交易與上市公司信息透明度交叉項的回歸系數(shù)依然顯著,說明大宗交易降低股價崩盤風險的作用在信息透明程度較低的上市公司中更加顯著,進一步支持了大宗交易降低上市公司的股價崩盤風險的效應。
[Abstract]:This paper selects the data of China A-share listed companies from 2002 to 2015 as the research sample to analyze whether the bulk trading will affect the risk of stock price collapse of listed companies. Furthermore, the paper investigates the differences in the role of bulk trades in reducing the risk of stock price collapse in the samples with different information transparency. The results show that: (1) there is a significant negative correlation between bulk trading and the risk of stock price collapse of listed companies. As an external market trading mechanism, bulk trading can reduce the risk of stock price collapse of listed companies; (2) after further controlling the information transparency variables of listed companies, The regression coefficient of the cross-item of information transparency between bulk trading and listed companies is still significant, indicating that the role of bulk trading in reducing the risk of stock price collapse is more significant in listed companies with lower degree of information transparency. It further supports the effect of bulk trading to reduce the risk of share price collapse of listed companies.
【作者單位】: 鄭州大學西亞斯國際學院;
【分類號】:F832.51
[Abstract]:This paper selects the data of China A-share listed companies from 2002 to 2015 as the research sample to analyze whether the bulk trading will affect the risk of stock price collapse of listed companies. Furthermore, the paper investigates the differences in the role of bulk trades in reducing the risk of stock price collapse in the samples with different information transparency. The results show that: (1) there is a significant negative correlation between bulk trading and the risk of stock price collapse of listed companies. As an external market trading mechanism, bulk trading can reduce the risk of stock price collapse of listed companies; (2) after further controlling the information transparency variables of listed companies, The regression coefficient of the cross-item of information transparency between bulk trading and listed companies is still significant, indicating that the role of bulk trading in reducing the risk of stock price collapse is more significant in listed companies with lower degree of information transparency. It further supports the effect of bulk trading to reduce the risk of share price collapse of listed companies.
【作者單位】: 鄭州大學西亞斯國際學院;
【分類號】:F832.51
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