1,720,964 research outputs found
Vulnerabilità del sistema bancario italiano. Diagnosi e rimedi
Full text linkIl sovraccarico di crediti deteriorati (NPL) associato ad una bassa redditività sono i fattori che principalmente contribuiscono a determinare la vulnerabilità del sistema bancario italiano. L'attenzione finora si è concentrata principalmente sull'eccesso di NPL, mentre il problema della redditività è di solito considerato come una questione che deve essere affrontata e gestita dal management bancario e non come un'area meritevole di specifici interventi di regolamentazione e di vigilanza. Anche se il capitale costituisce il fulcro della regolamentazione prudenziale, i regolatori e i supervisori non dedicano di solito sufficiente attenzione al problema da dove venga questo capitale. Nello studio, condotto su un campione di 410 banche e gruppi bancari italiani, facciamo uno stress test sugli NPL integrato con un test di vitalità. I risultati principali sono i seguenti. I fattori di vulnerabilità del sistema bancario italiano sono estremamente diffusi e non limitati a poche "mele marce", come talora si sostiene. Interventi di ricapitalizzazione nell'ordine di circa 10 miliardi di euro sarebbero necessari per risolvere in misura accettabile l'eccesso degli NPL; tuttavia, molto più importante è che limitare gli interventi al problema degli NPL non è sufficiente a riportare gran parte delle banche italiane in condizioni di vitalità di lungo termine, a causa delle inefficienze dei loro attuali modelli di business. L'analisi sul sistema bancario italiano offre motivi a supporto di una critica radicale dell'attuale approccio regolamentare e di vigilanza che, trascurando il problema fondamentale della redditività delle banche, non è quindi in grado di evitare i rischi per la loro solvibilità originati dall'accumulazione degli NPL. Sosteniamo quindi che i cambiamenti strutturali necessari per riportare le banche italiane su un percorso di vitalità di lungo termine richiedono un approccio innovativo di regolamentazione e di supervisione.The major vulnerabilities of the Italian banking system are the overhang of NPLs and low profitability. Differently from the attention given to excesses of NPLs, the profitability problem is normally considered to be a matter to be left to bank management and not an area of explicit direct regulatory action. Although focusing on capital requirements, regulators and supervisors seldom pose the question of where capital comes from. Using a large sample of 410 Italian domestic banking groups and individual banks, we propose an NPL stress test and a viability test that show: that the system’s vulnerability is a widespread phenomenon; that a further recapitalisation of around ten billion euro is necessary; and that, more importantly, limiting interventions to the overhang problem does not put the majority of Italian banks into a viability path due to the inefficiencies coming from their current business models. The analysis of the Italian case strengthens the critique of current regulation and supervision because, not focusing on bank profitability, they do not avoid threats on solvency coming from the accumulation of NPLs. We thus argue that the structural changes necessary to put the Italian banking system into a viable path require new regulatory and supervisory approaches
Dealing with the vulnerability of the Italian banking system
Full text linkThe major vulnerabilities of the Italian banking system are the overhang of NPLs and low profitability. Differently from the attention given to excesses of NPLs, the profitability problem is normally considered to be a matter to be left to bank management and not an area of explicit direct regulatory action. Although focusing on capital requirements, regulators and supervisors seldom pose the question of where capital comes from. Using a large sample of 410 Italian domestic banking groups and individual banks, we propose an NPL stress test and a viability test that show: that the system’s vulnerability is a widespread phenomenon; that a further recapitalisation of around ten billion euro is necessary; and that, more importantly, limiting interventions to the overhang problem does not put the majority of Italian banks into a viability path due to the inefficiencies coming from their current business models. The analysis of the Italian case strengthens the critique of current regulation and supervision because, not focusing on bank profitability, they do not avoid threats on solvency coming from the accumulation of NPLs. We thus argue that the structural changes necessary to put the Italian banking system into a viable path require new regulatory and supervisory approaches
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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