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首页> 外文期刊>The quarterly review of economics and finance >Autocorrelation in daily short-sale volume
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Autocorrelation in daily short-sale volume

机译:每日卖空量的自相关

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摘要

While Diether, Lee, and Werner (2009) find that daily shorting activity is serially correlated, this study uses more formal tests and finds significant first-order autocorrelation in daily short volume. Contrary to prior research that suggests that autocorrelation in total trade volume is explained by the flow of information into prices, our tests indicate that the information contained in short sales is decreasing in the level of autocorrelation. In additional tests, we do not find that short-sale constraints explain the presence of autocorrelation. However, our tests do provide evidence that the level of autocorrelation in daily short volume is highest in stocks that are least liquid suggesting that illiquidity might explain the presence of autocorrelation.
机译:尽管Diether,Lee和Werner(2009)发现每日做空活动是连续相关的,但本研究使用了更多正式测试,并发现每日做空量具有显着的一阶自相关。与先前的研究表明总贸易量的自相关可以通过信息流入价格的解释相反,我们的测试表明卖空中包含的信息的自相关水平正在降低。在其他测试中,我们没有发现卖空限制可以解释自相关的存在。但是,我们的测试确实提供了证据,即流动性最低的股票在每日空头交易量中的自相关水平最高,这表明流动性不足可能解释了自相关的存在。

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