1,720,956 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Credit Crunch in Germany?
No full textCredit Crunch in Germany?
This paper evaluates whether the German economy was affected by a credit crunch from 2001 to 2003, i.e. a supply-side restriction of loans that is not in line with market interest rates and profitability of investment projects. With the help of a disequilibrium-model, we calculate a credit supply and a demand-function. We have compared estimated demand with estimated supply, finding evidence for a substantial supply side restriction of the German credit market, particularly since the end of 2002. The main reason for this restriction is the drop in earnings in the banking sector. Applying the model to Großbanken (big banks) and other credit institutions separately shows that the former were more affected than the latter. (JEL C32, E51, G2]1
Credit Crunch in Germany?
No full textThis paper evaluates whether the Germany economy is currently affected by a credit crunch,i.e.a supply-side restriction of loans that is not in line with market interest rates and profitability of investment projects.With help of a disequilibrium-model,we calculate a credit supply and a demand-function.We compare estimated demand with estimated supply,finding a considerable ex- cess-demand particularly in the second half of 2002.The main reason for this restriction is the drop in earnings in the banking sector.Applying the model to Großbanken (big banks)and other credit institutions separately,shows that the situation in the former is more severe than in the latter
Der Zins-Pass-Through deutscher Geschäftsbankengruppen
Get PDFDer Zins-Pass-Through, also die Geschwindigkeit, mit der Geschäftsbanken einen Geldmarktimpuls an ihre Kunden weitergeben, ist aus zwei Gründen wirtschaftspolitisch relevant. Zum einen ist er eine wichtige Determinante für die Wirksamkeit der Geldpolitik, da er die erste Stufe der geldpolitischen Transmission darstellt. Zum anderen lässt er auf den Wettbewerb auf dem Bankenmarkt schließen. In der vorliegenden Arbeit wird die Weitergabe von Zinsimpulsen in theoretischer, institutioneller und empirischer Hinsicht untersucht. Ein besonderes Augenmerk liegt dabei auf der Frage, ob sich Großbanken, Sparkassen, Kreditgenossenschaften und Regionalbanken in ihrer Reaktionsgeschwindigkeit unterscheiden. Dabei werden jeweils die Zinsen von vier Retail-Produkten geprüft. Zunächst wird der theoretische Rahmen der empirischen Messung entwickelt. Flankierend werden die aus der Literatur bekannten Determinanten des Zins-Pass-Through zusammengestellt. An ihnen orientiert werden die vier Institutsgruppen verglichen. Die empirische Analyse erfolgt im Rahmen eines Panel-Fehlerkorrekturmodells. Insgesamt zeigen die Schätzungen, dass Großbanken und Sparkassen fast gleich - und deutlich schneller als Regional- und vor allem Genossenschaftsbanken - auf Geldmarktimpulse reagieren. Erklärt werden kann dies durch institutionelle Unterschiede und die jeweilige Ausrichtung auf Geschäftsfelder und Kundengruppen. Bei den Sparkassen wären jedoch größere Ähnlichkeiten mit den Kreditgenossenschaften als mit den Großbanken zu vermuten gewesen. Die sofortige Anpassung der Hypothekenzinsen in allen untersuchten Bankengruppen kann als Hinweis darauf gelten, dass der Wettbewerb im deutschen Bankenmarkt grundsätzlich funktioniert, allerdings je nach Produkt in unterschiedlicher Intensität
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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