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The return volatility of cryptocurrencies during the COVID-19 pandemic: Assessing the news effect
被引:48
|作者:
Salisu, Afees A.
[1
]
Ogbonna, Ahamuefula E.
[1
,2
]
机构:
[1] Univ Ibadan, Ctr Econometr & Allied Res, Ibadan, Nigeria
[2] Univ Ibadan, Dept Stat, Ibadan, Nigeria
关键词:
Cryptocurrencies;
COVID-19;
News;
GARCH MIDAS;
VIRTUAL CURRENCY;
CHOW TEST;
BITCOIN;
COEFFICIENTS;
EQUALITY;
TESTS;
SETS;
D O I:
10.1016/j.gfj.2021.100641
中图分类号:
F8 [财政、金融];
学科分类号:
0202 ;
摘要:
In this paper, we test the role of news in the predictability of return volatility of digital currency market during the COVID-19 pandemic. We use hourly data for cryptocurrencies and daily data for the news indicator, thus, the GARCH MIDAS framework which allows for mixed data frequencies is adopted. We validate the presupposition that fear-induced news triggered by the COVID-19 pandemic increases the return volatilities of the cryptocurrencies compared with the period before the pandemic. We also establish that the predictive model that incorporates the news effects forecasts the return volatility better than the benchmark (historical average)model.
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页数:8
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