Time–frequency co-movement and risk connectedness among cryptocurrencies: new evidence from the higher-order moments before and during the COVID-19 …

J Cui, A Maghyereh - Financial Innovation, 2022 - Springer
Analyzing comovements and connectedness is critical for providing significant implications
for crypto-portfolio risk management. However, most existing research focuses on the lower …

Co-jump dynamicity in the cryptocurrency market: A network modelling perspective

L Zhang, E Bouri, Y Chen - Finance Research Letters, 2023 - Elsevier
We examine the co-jumps of 37 cryptocurrencies based on a network model, and analyse
the portfolio implications. The results reveal that, firstly, Bitcoin exerts the strongest influence …

The great crypto crash in September 2018: why did the cryptocurrency market collapse?

V Manahov - Annals of Operations Research, 2024 - Springer
The cryptocurrency crash on the 5th of September, 2018, resulted in price decreases in 95 of
the 100 leading digital currencies. We obtained millisecond data of some of the more …

Monetary policy, investor sentiment, and the asymmetric jump risk of Chinese stock market

J Wang, P Chen, J Wang, X Guo… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
To investigate the impacts of monetary policies on the jump risk of Chinese stock market, we
introduce them into an exponential generalized autoregressive conditional …

Expectations of macroeconomic news announcements: Bitcoin vs. Traditional assets

I Mužić, I Gržeta - Risks, 2022 - mdpi.com
Research on cryptocurrencies has proliferated in recent years. Our research objective was
to answer the question of whether macroeconomic news from the US affects Bitcoin in the …

Cryptocurrency markets, macroeconomic news announcements and energy consumption

W Ben Omrane, Q Qi, S Saadi - Annals of Operations Research, 2023 - Springer
Motivated by recent evidence showing that shocks in cryptocurrencies' trade volume
increase their energy consumption and carbon footprint, this study seeks to identify the news …

Macroeconomic news, senior officials' speeches, and emerging currency markets: An intraday analysis of price jump reaction

MA Ayadi, WB Omrane, DK Das - Emerging Markets Review, 2024 - Elsevier
We examine intraday emerging currency jumps in response to domestic and foreign
macroeconomic news announcements, as well as US senior officials' speeches. We use the …

Senior official speeches and severe price discontinuities in the foreign exchange market

MA Ayadi, W Ben Omrane, J Wang… - Studies in Economics and …, 2023 - emerald.com
Purpose This study aims to better understand the effects of speeches as a valuable
communication tool for central banks. It extends the analysis of the effects of public …

Macroeconomic news and price jumps: evidence from ETFs and LOFs in China

D Su, T Hu - International Journal of Emerging Markets, 2024 - emerald.com
Purpose We examine the relationship between macroeconomic news and fund price jumps,
using high-frequency 5-min intraday data for Exchange Traded Funds (ETFs) and Listed …

Enduring relief or fleeting respite? Bitcoin as a hedge and safe haven for the US dollar

T Conlon, S Corbet, R McGee - Annals of Operations Research, 2024 - Springer
Can technology protect investors from extreme losses? This paper investigates the short-
and long-run hedging and safe haven properties of Bitcoin for the US dollar over the period …