This paper aims to select the best model or set of models for modelling volatility of the four most popular … cryptocurrencies, i.e. Bitcoin, Ethereum, Ripple and Litecoin. More than 1,000 GARCH models are fitted to the log returns of the … exchange rates of each of these cryptocurrencies to estimate a one-step ahead prediction of Value-at-Risk (VaR) and Expected …

This paper examines mean and volatility spillovers between three major cryptocurrencies (Bitcoin, Litecoin and Ethereum … (interdependence) among the three cryptocurrencies under investigation are found in most cases when cyber attacks are taken into …

This paper provides some comprehensive evidence on the effects of cyber-attacks on the returns, realized volatility and … trading volume of five of the main cryptocurrencies (Bitcoin, Ethereum, Litecoin, XRP and Stellar) in 99 developed and … the US cyber security firms tend to overreact to cyberattacks affecting cryptocurrencies and more wealth is spent on cyber …

bubbles are awed due to an insufficient consideration of the fundamental value of cryptocurrencies. As even fiat money is said … to exhibit features of bubbles, the same applies to cryptocurrencies. Thus, any empirical investigation into either the … presence of cryptocurrency bubbles or the fundamental value of cryptocurrencies is needless. Second, the paper conducts a short …

Cryptocurrencies are often thought to operate out of the reach of national regulation, but in fact their valuations … regulatory category to which the news relates: events related to general bans on cryptocurrencies or to their treatment under …, and on restricting the interoperability of cryptocurrencies with regulated markets. News pointing to the establishment of …

of the four main cryptocurrencies in terms of market capitalization (BTC, ETH, USDT, BNB) and of four US stock market … market efficiency in the case of the cryptocurrencies but not of the stock market indices considered. They also indicate that … cryptocurrencies can be a useful tool for investors to diversify and hedge when required in the case of the US markets. …