Search results for "Coin"
showing 10 items of 612 documents
Statistical Modelling and Risk Analysis of Bitcoins Exchange Rate
2018
Master's thesis Business Administration BE501 - University of Agder 2018 Bitcoin is a phenomenon that is new and there is little information on how and why it behaves as volatile as it does. This thesis uses existing data on Bitcoin’s exchange rate to estimate a model that describes the pattern and use it in a financial risk analysis. We also aim to contribute as a foundation for further studies in this field. The statistical properties of the log-return of the exchange rate are analysed and it is deemed to be iid. From the eleven distributional candidates we study is the fitted skew generalised t distribution proven to represent the data best after evaluation by criteria and statistics. Th…
“NUMMI DIGITALI”: approcci innovativi per la conoscenza, gestione e valorizzazione del patrimonio numismatico del Museo Archeologico Regionale “A. Sa…
2022
The subject of the contribution is the “NUMMI DIGITALI” project which aims to enhance the numismatic collection of the Archaeological Museum “A. Salinas” in Palermo, closed to public use for over seventy years, which will become accessible thanks to the close interrelationship between numismatic-archaeological methodologies and the IT approach. The project, curated by Lavinia Sole, Numismatics researcher at the Culture and Society Department of the University of Palermo, within the PON "Research and Innovation" 2014-2020, Axis IV-Action IV.4, provides for the creation of a digital database, in line with the standards and cataloging tools of the ICCD and with the methodological guidelines of…
Nonlinear Liouville Problems in a Quarter Plane
2016
We answer affirmatively the open problem proposed by Cabr\'e and Tan in their paper "Positive solutions of nonlinear problems involving the square root of the Laplacian" (see Adv. Math. {\bf 224} (2010), no. 5, 2052-2093).
Kryptologia a prawo – wybrane zagadnienia: idea kryptowaluty i jej wpływu na ewolucję oszustw w internecie
2016
Rozwój cyberprzestrzeni i jej narzędzi kreuje nowe zagadnienia zarówno w świecie wirtualnym, jak i realnym. Pojawienie się nowego elementu, tzn. waluty cyfrowej w postaci monet kryptograficznych spowodowało szereg zmian w funkcjonowaniu użytkowników w Sieci. Wraz ze zmianami ewoluowały również metody stosowane przez cyberprzestępców. Celem artykułu jest ukazanie, jaki wpływ wywarły monety typu bitcoin na powstanie nowych form oszustw występujących w Internecie
Differences in wage determination in the Eurozone: A challenge to the resilience of the common currency
2019
Abstract Different developments in wages and unit labor costs across countries can reduce the synchronization of business cycles within a currency area and therefore be a potential source of asymmetric shocks and/or asymmetric response to a common shock. In this paper, we use novel econometric methods to identify differences and similarities in wage determination across Eurozone countries. Results show that wages have different determinants across euro area countries, among which two relatively distinct groups can be identified. In particular, wages in Germany, Austria, Belgium, Luxembourg, the Netherlands and Finland behave more similarly, are less sticky and respond more to macroeconomic …
EMU and Trade Revisited: Long-Run Evidence Using Gravity Equations
2013
In this paper, we present evidence of the long-run effect of the euro on trade for the twelve initial EMU countries for the period 1967–2008 from a double perspective. First, we pool all the bilateral combinations of trade flows among the EMU countries in a panel cointegration gravity specification. Second, we estimate a gravity equation for each of the EMU members vis-a-vis the other eleven partners. We apply panel cointegration techniques based on factor models that account for cross-dependence and structural breaks. Whereas the joint gravity equation provides evidence on the aggregate effect of the euro on intra-European trade, by isolating the individual countries, we assess which of th…
Monotone generalized nonlinear contractions and fixed point theorems in ordered metric spaces
2011
The purpose of this paper is to present some fixed point theorems for T -weakly isotone increasing mappings which satisfy a generalized nonlinear contractive condition in complete ordered metric spaces. As application, we establish an existence theorem for a solution of some integral equations.
Beneficial coinfection can promote within-host viral diversity
2018
Abstract In many viral infections, a large number of different genetic variants can coexist within a host, leading to more virulent infections that are better able to evolve antiviral resistance and adapt to new hosts. But how is this diversity maintained? Why do faster-growing variants not outcompete slower-growing variants, and erode this diversity? One hypothesis is if there are mutually beneficial interactions between variants, with host cells infected by multiple different viral genomes producing more, or more effective, virions. We modelled this hypothesis with both mathematical models and simulations, and found that moderate levels of beneficial coinfection can maintain high levels o…
Kriptovalūtu statistiskās īpašības un to portfeļa optimizēšana
2018
Bakalaura darbā aprakstīta, mūsdienu, viena no populārākajām valūtām-kriptovalūta, kas pēdējo gadu laikā, ir izraisījusi lielu interesi investoru un spekulantu vidū. Darbā tiks apskatīta lielākā no kriptovalūtām Bitcoin un tās statistiskās īpašības. Tākā kriptovalūtai piemīt daudzas valūtai raksturīgās īpašības, to var uzsskatīt par finanšu instrumentu. Šajā darbā tiks izklāstīts, kā izveidot optimālu portfeli, pielietojot plašāk pazīstamās portfeļu optimizācijas metodes.
Prue rostrate sulle monete: riflessioni iconografiche
2016
The contribution will review the main types coin with prows and beaks, represented in isolation or as part of warships, starting from the oldest representations up to those of the First Punic War, which is the theme of the conference. Follow the iconographic observations and reflections about the reasons that prompted the issuing authorities to choose these types