Publication details

Impact of macroeconomic news, regulation and hacking exchange markets on the volatility of bitcoin

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Authors

LYÓCSA Štefan PLÍHAL Tomáš MOLNÁR Peter ŠIRÁŇOVÁ Mária

Year of publication 2020
Type Article in Periodical
Magazine / Source JOURNAL OF ECONOMIC DYNAMICS AND CONTROL
MU Faculty or unit

Faculty of Economics and Administration

Citation
web https://www.sciencedirect.com/science/article/pii/S0165188920301482
Doi http://dx.doi.org/10.1016/j.jedc.2020.103980
Keywords Bitcoin; Volatility; Regulations; Hacking attacks; Macroeconomic news;
Attached files
Description We study whether news and sentiment about bitcoin regulation, the hacking of bitcoin exchanges and scheduled macroeconomic news announcements affect the volatility of bitcoin, measured as realized variance and its jump component. Our results show that realized variance and its jump component exhibit similar dynamics and react similarly to various types of news. Volatility of bitcoin reacts most strongly to news on bitcoin regulation, positive investor sentiment regarding bitcoin regulation extracted using Google searches, and most notably, hacking attacks on cryptocurrency exchanges. Quantile regression reveals that hacking attacks have particularly strong impact on the upper conditional distribution of bitcoin volatility. We also find that the volatility of bitcoin is not influenced by most scheduled US macroeconomic news announcements, such as government budget deficits, inflation, or even monetary policy announcements. On the other hand, bitcoin responds with increased volatility to announcements of forward-looking indicators, such as the consumer confidence index.
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