The consequences of Covid-19 on the financial sector have gained so much attention. At the same time, another growing part of the financial markets is cryptocurrencies, and it comes to the question: What is the impact of Covid-19 as a shock on crypto markets? This study is the first attempt to...

This paper assesses the impact of US policy responses to the Covid-19 pandemic on various cryptocurrencies and also technology stocks using fractional integration techniques. More precisely, it analyses the behaviour of the percentage returns in the case of nine major coins (Bitcoin - BITC,...

This study examined the structural breakdowns and co-movements of Bitcoin (BTC) and Ethereum (ETH) cryptocurrencies from the onset of the COVID-19 pandemic. The Bai-Perron test was used to determine the change in the mean and variance of the two principal actors regarding market capitalization...

We study how a firm's global connectedness through global supply chains and exports affects its stock market performance during crises. While global connectedness can expose firms to negative foreign shocks, it potentially reduces firms' susceptibility to domestic shocks by allowing...

In this letter, we analyse the effect of the COVID-19 pandemic on the network topology of the cryptocurrency market. Our results show that COVID-19 significantly affected this market during a short period of financial panic, from 12 March 2020 to 1 April 2020. Since then, it progressively...

By computing a volatility index (CVX) from cryptocurrency option prices, we analyze the market's expectation of future volatility. Our method addresses the challenging liquidity environment of this young asset class and allows us to extract stable market implied volatilities. Two alternative...

The letter examines herding in the most liquid cryptocurrency markets relative to traditional financial markets of 10 emerging economies within the G20. Our results reference significant symmetric crowd and imitation trading, which are dependent on time. Additionally, we report asymmetric herd...

This paper uses a Markov-switching non-linear specification to analyse the effects of cyber attacks on returns in the case of four cryptocurrencies (Bitcoin, Ethernam, Litecoin and Stellar) over the period 8/8/2015 - 28/2/2019. The analysis considers both cyber attacks in general and those...