Recent scaling properties of Bitcoin price returns

Recent scaling properties of Bitcoin price returns
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比特币价格回报的近期缩放特性

DOI:
10.1088/1742-6596/1730/1/012124
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发表时间:
2021
期刊:
Journal of Physics: Conference Series
影响因子:
--
通讯作者:
Takaishi T
Takaishi T
中科院分区:
--
文献类型:
--
作者:
Takashi Yamagata;Masaaki Kuboniwa;Takaishi T

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虽然在比特币市场上观察到了相关的程式化事实,但我们发现了累积收益分布的标度行为的一个独特属性。对于各种资产,累积收益率分布的尾部指数μ表现为μ π ι 3,这被称为”逆三次定律“。另一方面,比特币的回报率被称为μ π ι 2,这被称为“平方反比定律”。“我们使用最近的比特币数据研究了缩放特性,发现尾部指数变为μ π ι 3,这与逆立方定律一致。这表明比特币市场的一些属性可能会随着时间的推移而变化。我们还研究了绝对收益的自相关性,发现它是由一个幂律与两个标度指数。通过分析以已实现波动率标准化的绝对收益率,我们验证了比特币收益率时间序列与具有时变波动率的正态随机变量是一致的。
While relevant stylized facts are observed for Bitcoin markets, we find a distinct property for the scaling behavior of the cumulative return distribution. For various assets, the tail index μ of the cumulative return distribution exhibits μ≈ 3, which is referred to as" the inverse cubic law." On the other hand, that of the Bitcoin return is claimed to be μ≈ 2, which is known as" the inverse square law." We investigate the scaling properties using recent Bitcoin data and find that the tail index changes to μ≈ 3, which is consistent with the inverse cubic law. This suggests that some properties of the Bitcoin market could vary over time. We also investigate the autocorrelation of absolute returns and find that it is described by a power-law with two scaling exponents. By analyzing the absolute returns standardized by the realized volatility, we verify that the Bitcoin return time series is consistent with normal random variables with time-varying volatility.
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发表时间: 2019-04
影响因子: 10.4
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DOI: --
发表时间: 2018
影响因子: 10.4
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