arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1006.0628q-fin.STcond-mat.stat-mechphysics.soc-ph
收藏

从平均场动力学看金融市场的普适标度

Emergence of universal scaling in financial markets from mean-field dynamics

S. V. Vikram, Sitabhra Sinha

摘要:

具有普适性质的集体现象已经在许多具有大量组分的复杂系统中观察到。在这里,我们提出了一个微观模型的出现,在这样的系统中,各个组件之间的相互作用动态介导的一个全局变量,使平均场的描述准确的标度行为。以金融市场为例,我们表明,资产价格可以是这样一个全球性的变量与协调的行动,否则独立的代理人的关键作用。由此产生的模型准确地再现了经验属性,如价格波动和成交量分布的普遍缩放,波动和多尺度的长期相关性。

英文摘要:

Collective phenomena with universal properties have been observed in many complex systems with a large number of components. Here we present a microscopic model of the emergence of scaling behavior in such systems, where the interaction dynamics between individual components is mediated by a global variable making the mean-field description exact. Using the example of financial markets, we show that asset price can be such a global variable with the critical role of coordinating the actions of agents who are otherwise independent. The resulting model accurately reproduces empirical properties such as the universal scaling of the price fluctuation and volume distributions, long-range correlations in volatility and multiscaling.

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。

↑