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arXiv physics/0606161physics.soc-phq-fin.ST
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流动性与股票市场交易量的多尺度特性

Liquidity and the multiscaling properties of the volume traded on the stock market

Zoltan Eisler, Janos Kertesz

摘要:

我们研究了纽约证券交易所交易数据的相关性。每只股票的交易活动f(t)在60-390分钟的时间尺度上显示出从弱相关性到强相关性的交叉。在这两种情况下,赫斯特指数H在数学上取决于股票的流动性,以每分钟的平均交易价值衡量。所有的多尺度指数tau(q)都显示出类似的流动性依赖性,这清楚地表明缺乏其他研究所假设的通用形式。这种行为的起源是长期记忆中的连续交易的频率和规模。

英文摘要:

We investigate the correlation properties of transaction data from the New York Stock Exchange. The trading activity f(t) of each stock displays a crossover from weaker to stronger correlations at time scales 60-390 minutes. In both regimes, the Hurst exponent H depends logarithmically on the liquidity of the stock, measured by the mean traded value per minute. All multiscaling exponents tau(q) display a similar liquidity dependence, which clearly indicates the lack of a universal form assumed by other studies. The origin of this behavior is both the long memory in the frequency and the size of consecutive transactions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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