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This paper analyzes high-frequency estimates of good and bad realized volatility of Bitcoin. We show that volatility asymmetry depends on the volatility regime and the forecast horizon. For one-day ahead forecasts, good volatility commands a stronger impact on future volatility than bad...
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cryptocurrency returns. A nonlinear technique of transfer entropy is applied to investigate the relationship between the top 30 … cryptocurrencies by market capitalization and COVID–19 news sentiment to capture cryptocurrency return and volatility dynamics. Results … show that COVID–19 news sentiment influences cryptocurrency returns. The nexus is unidirectional from news sentiment to …
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