1,721,022 research outputs found
The Cryptocurrency Phenomenon: The Origins, Evolution and Economics of Digital Currencies
No full textThis book provides a comprehensive analysis of the cryptocurrency phenomenon from a financial/monetary point of view. It offers a unique slant in at least two ways, with the financial perspective as the reference point.
An examination of the technicalities surrounding blockchain and the mining of cryptocurrencies is included, but the reading is oriented to those who seek to better understand how these technical issues help to explain the functioning and the potential of cryptocurrencies, without touching on coding aspects. Moreover, the book addresses cryptocurrencies as an evolution of the concept of money, and it frames the analysis to give readers all the knowledge needed to connect the cryptocurrency phenomenon with traditional monetary theories. In so doing, cryptocurrencies are not considered as a completely disconnected trend, set apart from traditional financial systems, but as innovations that will push the concept of money forward, without dismantling previous foundations.
The book also includes a discussion on central banks, and stresses how their initial diffidence toward cryptocurrencies has turned into a more active approach that includes projects to develop the so-called Central Bank Digital Currencies (CBDC), thereby completing the analysis of the state of the art of the cryptocurrency surge.
The mix of theoretical content on the concept of money, the description of payment tools and the functioning of the payment industry, and the analysis of blockchain and the cryptocurrency markets makes the book interesting reading for researchers, scholars and students of economics, finance, or business, enabling them to develop the ability to understand the dynamics of the cryptocurrency phenomenon and its possible evolution
Un’analisi della natura prevalente del Bitcoin tra strumento monetario ed asset speculativo
No full textLo studio analizza prezzi e rendimenti giornalieri del Bitcoin mettendoli
in relazione con una pluralità di indici "nanziari (azionari, obbligazionari,
commodities, valute, ecc.) e considerando l’impatto di diverse notizie relative
all’accettabilità del Bitcoin come mezzo di pagamento ed altri eventi.
L’obiettivo di comprendere la natura prevalente del Bitcoin è stato perseguito
tramite una serie di analisi di regressione multivariata su diversi orizzonti
temporali. L’ipotesi alla base del lavoro è che la natura prevalente del Bitcoin
possa emergere da una maggiore similarità con l’andamento di alcune variabili
esplicative di di#erenti mercati (es. azionari, valutari, ecc.) rispetto ad altri. I
risultati denotano una signi"catività statistica maggiore per le variabili relative
ai mercati azionari – in particolare i mercati azionari americani ed europei –
rispetto a mercati valutari e delle commodities, portando a concludere che, al
momento, il Bitcoin venga considerato prevalentemente un asset speculativo,
molto più simile alle azioni, anziché una valuta o una commodity. La natura
monetaria non è comunque totalmente assente data la rilevanza statistica di
eventi che potrebbero in$uenzare l’accettabilità del Bitcoin come mezzo di
pagamento
Le determinanti del comportamento finanziario digitale: un’indagine nel contesto italiano
No full textNegli ultimi decenni il settore finanziario ha vissuto un’evoluzione digitale continua che
ha modificato l’offerta di servizi e strumenti e influito sul comportamento finanziario
dei consumatori. Questo lavoro, basato su un questionario somministrato ai consumatori
italiani (n = 502), indaga il comportamento finanziario degli investitori retail realizzato
attraverso canali digitali studiandone le determinanti. Le analisi rivelano che,
oltre che dalle variabili sociodemografiche e socioeconomiche quali genere, età, livello
d’istruzione e reddito, il comportamento finanziario digitale è positivamente influenzato
dall’alfabetizzazione finanziaria e digitale, dalla conoscenza delle criptoasset e dal
grado di fiducia nell’automazione
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
IL LAVAGGIO PERITONEALE POSTOPERATORIO.RICHIAMI DI FISIOPATOLOGIA DEL PERITONEO E PRIMI RISULTATI SPERIMENTALI
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