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Register a new userPower-Law Return-Volatility Cross Correlations of Bitcoin
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Authors
T. Takaishi
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This paper investigates the return-volatility asymmetry of Bitcoin. We find that the cross correlations between return and volatility (squared return) are mostly insignificant on a daily level. In the high-frequency region, we find thata power-law appears in negative cross correlation between returns and future volatilities, which suggests that the cross correlation is revision{long ranged}. We also calculate a cross correlation between returns and the power of absolute returns, and we find that the strength of revision{the cross correlations} depends on the value of the power.
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