This paper examines the volatility of Bitcoin as well as shedding light on the forecasting ability of GARCH models and HAR models in the Bitcoin market. We find no evidence of the leverage effect in Bitcoin and that the HAR models are superior in modelling Bitcoin volatility to traditional GARCH...

Investor and media attention in Bitcoin has increased substantially in recently years, reflected by the incredible surge in news articles and considerable rise in the price of Bitcoin. Given the increased attention, there little is known about the behaviour of Bitcoin prices and therefore we add...

Bitcoin has received much attention in the media and by investors in recent years, although there remains scepticism and a lack of understanding of this cryptocurrency. We add to the literature on Bitcoin by studying the market efficiency of Bitcoin. Through a battery of robust tests, evidence...

Bitcoin has received much investor attention in recent years, however, there remains a lot of scepticism and lack of understanding of this cryptocurrency. We contribute to the growing literature of Bitcoin by examining the intraday variables of the leading Bitcoin exchange with the highest...