Complexity in economic and social systems: Cryptocurrency market at around COVID-19

S Drożdż, J Kwapień, P Oświęcimka, T Stanisz… - Entropy, 2020 - mdpi.com
Social systems are characterized by an enormous network of connections and factors that
can influence the structure and dynamics of these systems. Among them the whole …

Cryptocurrencies are becoming part of the world global financial market

M Wątorek, J Kwapień, S Drożdż - Entropy, 2023 - mdpi.com
In this study the cross-correlations between the cryptocurrency market represented by the
two most liquid and highest-capitalized cryptocurrencies: bitcoin and ethereum, on the one …

What is mature and what is still emerging in the cryptocurrency market?

S Drożdż, J Kwapień, M Wątorek - Entropy, 2023 - mdpi.com
In relation to the traditional financial markets, the cryptocurrency market is a recent invention
and the trading dynamics of all its components are readily recorded and stored. This fact …

Collective dynamics, diversification and optimal portfolio construction for cryptocurrencies

N James, M Menzies - Entropy, 2023 - mdpi.com
Since its conception, the cryptocurrency market has been frequently described as an
immature market, characterized by significant swings in volatility and occasionally described …

[HTML][HTML] An exploration of the mathematical structure and behavioural biases of 21st century financial crises

N James, M Menzies - Physica A: Statistical Mechanics and its Applications, 2023 - Elsevier
In this paper we contrast the dynamics of the 2022 Ukraine invasion financial crisis with
notable financial crises of the 21st century—the dot-com bubble, global financial crisis and …

COVID-19 effects on the relationship between cryptocurrencies: can it be contagion? Insights from econophysics approaches

D Almeida, A Dionísio, I Vieira, P Ferreira - Entropy, 2023 - mdpi.com
Cryptocurrencies are relatively new and innovative financial assets. They are a topic of
interest to investors and academics due to their distinctive features. Whether financial or not …

Correlations versus noise in the NFT market

M Wątorek, P Szydło, J Kwapień… - Chaos: An Interdisciplinary …, 2024 - pubs.aip.org
The non-fungible token (NFT) market emerges as a recent trading innovation leveraging
blockchain technology, mirroring the dynamics of the cryptocurrency market. The current …

Decomposing cryptocurrency high-frequency price dynamics into recurring and noisy components

M Wątorek, M Skupień, J Kwapień… - … Interdisciplinary Journal of …, 2023 - pubs.aip.org
This paper investigates the temporal patterns of activity in the cryptocurrency market with a
focus on Bitcoin, Ethereum, Dogecoin, and WINkLink from January 2020 to December 2022 …

Impact of the COVID-19 pandemic on cryptocurrency markets: A DCCA analysis

D Almeida, A Dionísio, P Ferreira, I Vieira - FinTech, 2023 - mdpi.com
Extraordinary events, regardless of their financial or non-financial nature, are a great
challenge for financial stability. This study examines the impact of one such occurrence—the …

Detecting imbalanced financial markets through time-varying optimization and nonlinear functionals

N James, M Menzies - Physica D: Nonlinear Phenomena, 2025 - Elsevier
This paper studies the time-varying structure of the equity market with respect to market
capitalization. First, we analyze the distribution of the 100 largest companies' market …