Search results for "currency"
showing 10 items of 165 documents
Distributed Computing on Distributed Memory
2018
Distributed computation is formalized in several description languages for computation, as e.g. Unified Modeling Language (UML), Specification and Description Language (SDL), and Concurrent Abstract State Machines (CASM). All these languages focus on the distribution of computation, which is somewhat the same as concurrent computation. In addition, there is also the aspect of distribution of state, which is often neglected. Distribution of state is most commonly represented by communication between active agents. This paper argues that it is desirable to abstract from the communication and to consider abstract distributed state. This includes semantic handling of conflict resolution, e.g. i…
C<sup>2</sup>SMA/CA: Enabling co-channel concurrency in WLANs using positional information
2013
An attractive approach to overcome capacity limitations in a densely deployed WLAN environment is to enable transmission concurrency. In this paper, we propose a co-channel concurrent transmission scheme, referred to as C2SMA/CA, which determines whether to allow multiple concurrent transmissions based on interference estimation using positional information. A distributed multi-link concurrency scheduling algorithm is implemented, and its performance is evaluated through extensive simulations.
Corruption, Carry Trades, and the Cross Section of Currency Returns
2017
This is the first paper to explore the effects of perceived corruption on the FX market. It finds that the currencies of countries perceived to suffer from high levels of corruption generate statistically significantly lower returns than the currencies of countries perceived to have low levels of corruption. Moreover, the portfolio spread is highly correlated with NBER recessions and U.S. consumption growth of nondurable goods. Interestingly, stochastic discount factor model analysis reveals that the portfolio spread is useful for pricing the cross section of currency returns, even when controlling for standard FX risk factors.
FPGA-based concurrent watchdog for real-time control systems
2003
A straightforward and efficient implementation of a custom concurrent watchdog processor for real-time control systems is presented. Emphasis is given to the techniques used for on-line checking the main processor activity without adding overhead, and to the advantages of a field programmable gate array implementation.
Editorial – About a ‚PLATO‘
2017
While learning has constantly been an object of research in manifold disciplines and fields, it has generally been understood in a positive sense. In the Age of Information, we are witnessing an increasing number of phenomena in the context of knowledge construction and accumulation that we describe as “negative learning”. This includes, for example, the deliberate circulation of counterfactual knowledge leading to negative learning outcomes, i.e., deficient decision-making and acting, like medical errors.
Next-Day Bitcoin Price Forecast
2019
This study analyzes forecasts of Bitcoin price using the autoregressive integrated moving average (ARIMA) and neural network autoregression (NNAR) models. Employing the static forecast approach, we forecast next-day Bitcoin price both with and without re-estimation of the forecast model for each step. For cross-validation of forecast results, we consider two different training and test samples. In the first training-sample, NNAR performs better than ARIMA, while ARIMA outperforms NNAR in the second training-sample. Additionally, ARIMA with model re-estimation at each step outperforms NNAR in the two test-sample forecast periods. The Diebold Mariano test confirms the superiority of forecast …
Virtual Currency: New Step in Monetary Development
2016
Abstract Money is perhaps the best recognized and at the same time less understood figure of economy. During the evolution of a monetary science starting from the eighteenth century and fundamental works on such questions as true nature and main functions of money, the approach and theories about monetary science have changed significantly up to date not reaching the final state. The twenty-first century can be characterized with a vast development of technologies and the increase use of the internet which significantly succeeded the development of monetary system introducing a new phenomenon - virtual currencies. While remaining rather illusive, virtual currencies have been broadly noted b…
Insufficiencies in European Union law and member state national law regarding cryptocurrency regulations and its illicit use
2022
Cryptocurrency market transactions and provided opportunities for individuals have highly increased the use of this new paradigm for pursuing illicit activities. The European Union has reacted to this situation and have started to imply certain regulations to restrict criminal activities such as tax evasion, money laundering, terrorist financing and others. The aim of this research is to recognize possible insufficiencies in directives, normative acts and proposals provided by the EU. Understanding the problems within these regulations will help in the constant development and creation of a unified legislation for cryptocurrency users within the EU, and possibly indicate a roadmap for other…
Predicting Cryptocurrency Defaults
2019
We examine all available 146 Proof-of-Work based cryptocurrencies that started trading prior to the end of 2014 and track their performance until December 2018. We find that about 60% of those cryptocurrencies were eventually in default. The substantial sums of money involved mean those bankruptcies will have an enormous societal impact. Employing cryptocurrency-specific data, we estimate a model based on linear discriminant analysis to predict such defaults. Our model is capable of explaining 87% of cryptocurrency bankruptcies after only one month of trading and could serve as a screening tool for investors keen to boost overall portfolio performance and avoid investing in unreliable crypt…
Analysis of the evolution of the EU regulatory approach on virtual assets
2022
The technological advancements of virtual assets are growing exponentially in numbers now providing better security and enhanced privacy for its users. Furthermore, users may scramble and tumble virtual assets disguising their records of transactions. Innovations such as these although allow users to enjoy enhanced privacy in a world of constant supervision and “liberalization” of currency from the state, has however also opened a milieu for criminals to operate in, allowing money laundering, terrorism financing, tax and sanctions evasion, and other financial crimes to go unnoticed. In that regard, this thesis focuses on how the European Union has managed to catch up with the continuous inn…