Results 71 to 80 of about 55,395 (322)

Cryptocurrencies and momentum

open access: yesEconomics Letters, 2019
Abstract Retrieving a set of 143 cryptocurrencies for a sample spanning 2014–2018, we investigate the popular momentum strategy implemented in the cryptocurrency market. Contrary to earlier studies our findings do not indicate any evidence of significant momentum payoffs, supporting the view that the cryptocurrency market is far more efficient than ...
Sapkota, Niranjan, Grobys, Klaus
openaire   +4 more sources

Multi‐Distance Spatial‐Temporal Graph Neural Network for Anomaly Detection in Blockchain Transactions

open access: yesAdvanced Intelligent Systems, EarlyView.
This paper presents a novel Multi‐Distance Spatial‐Temporal Graph Neural Network for detecting anomalies in blockchain transactions. The model combines multi‐distance graph convolutions with adaptive temporal modeling to capture complex patterns in anonymized cryptocurrency networks.
Shiyang Chen   +4 more
wiley   +1 more source

Matters of concern and engaged research

open access: yesAccounting &Finance, Volume 62, Issue 4, Page 4615-4627, December 2022., 2022
Abstract This paper argues that repeated concerns about the nature of academic accounting research should be taken seriously. It proposes engaged research as a means of deepening our social license. Anchored in the argument of Chua and Fiedler (2022), engaged research is characterised as follows.
Wai Fong Chua
wiley   +1 more source

Herding and investor sentiment after the cryptocurrency crash: evidence from Twitter and natural language processing

open access: yesFinancial Innovation
Although the 2022 cryptocurrency market crash prompted despair among investors, the rallying cry, “wagmi” (We’re all gonna make it.) emerged among cryptocurrency enthusiasts in the aftermath.
Michael Cary
doaj   +1 more source

THE PROSPECTS OF USING CRYPTOCURRENCY BITCOIN AS A FINANCIAL INNOVATION IN THE INFORMATION ECONOMY OF UKRAINE

open access: yesФінансово-кредитна діяльність: проблеми теорії та практики, 2021
We have established that a relatively new market of cryptocurrency is the subject of great interest for research under the current conditions of financial innovations in payment services.
O. V. Perchuk   +2 more
doaj   +1 more source

CoinWatch: A Clone-Based Approach For Detecting Vulnerabilities in Cryptocurrencies [PDF]

open access: yesarXiv, 2020
Cryptocurrencies have become very popular in recent years. Thousands of new cryptocurrencies have emerged, proposing new and novel techniques that improve on Bitcoin's core innovation of the blockchain data structure and consensus mechanism. However, cryptocurrencies are a major target for cyber-attacks, as they can be sold on exchanges anonymously and
arxiv  

Early Warning Signals for Cryptocurrency Market States [PDF]

open access: yesarXiv, 2022
Being archetypal complex systems, financial markets exhibit rich set of dynamics in their interactions. In this paper, we focus on the recently evolved cryptocurrency market as an example of a complex system and analyse the evolution of cross correlation structure of cryptocurrencies in the 5 year period from 2017 to 2022.
arxiv  

Cryptocurrency: History, Advantages, Disadvantages, and the Future [PDF]

open access: yes, 2019
Cryptocurrency is a digital asset that has seen a large amount of attention within the past five years. Its origin is intriguing to some based upon its newness, yet it has invoked mysticism and skepticism in others.
Rice, Mitchell
core   +1 more source

Exploring the Interrelationship Between Energy, Geopolitical Risk, and Bitcoin Based Green Business Strategies

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examined how Bitcoin, energy prices, and geopolitical risk interact by examining the first four moments (mean, variance, skewness, and kurtosis) of their return distributions by using wavelet analysis. The findings reveal that the co‐movement patterns of energy index, geopolitical risk index, and Bitcoin prices are time and ...
Pooja Kumari   +4 more
wiley   +1 more source

Investor base and idiosyncratic volatility of cryptocurrencies [PDF]

open access: yesarXiv, 2022
This paper investigates how changes in investor base is related to idiosyncratic volatility in cryptocurrency markets. For each cryptocurrency, we set change in its subreddit followers as a proxy for the change in its investor base, and find out that the latter can significantly increase cryptocurrencies idiosyncratic volatility.
arxiv  

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