We test for the existence of bubbles in DeFi-focused cryptocurrencies, seeking to identify key driving forces that distinguish DeFi tokens from conventional cryptocurrencies. Conducting Supremum Augmented Dickey-Fuller, and Hacker-Hatemi-J modified Wald tests, as well as Diebold-Yilmaz return...

We investigate connectedness between energy cryptocurrencies and common asset classes, including oil, using TVP-VAR modeling, evidencing that energy cryptocurrencies, as diversifiers, normally have strong connections with bitcoin and nothing else. However, their connectedness to other assets...

We apply wavelet method to daily data of COVID-19 world deaths and daily Bitcoin prices from 31th December 2019 to 29th April 2020. We find especially for the period post April 5 that levels of COVID-19 caused a rise in Bitcoin prices. We contribute both to the fast-growing body of work on the...

We evidence that cryptocurrencies possess a significantly higher probability of crash risk than equity indices, albeit such cryptocurrency market crashes are typically of shorter duration, while possessing an increased probability of acting a source of instability through which can pass through...