1,721,146 research outputs found
Innovation and trade with heterogeneous firms
No full textAbstract not availableNgo Van Long, Horst Raff, Frank Stähle
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
Innovation and Trade with Heterogeneous Firms
Get PDFThis paper examines how trade liberalization affects the innovation incentives of firms, and what this implies for industry productivity. For this purpose we develop a reciprocal dumping model of international trade with heterogeneous firms and endogenous R&D. Among the robust results that hold both in the short run when there is no entry, and in the long run under free entry are that trade liberalization increases (decreases) aggregate R&D for low (high) trade costs and increases expected industry productivity. The central results of the paper regarding firm and industry level R&D spending differ significantly from the case of homogeneous firms.international trade, firm heterogeneity, R&D, productivity, market structure
Essays on offshoring and on determinants of NGO survival
Get PDFThis thesis consists of two parts. Part I focuses on
the for-profit sector, analysing the effects of offshoring on firm productivity (paper 1) and on labour market inequalities between workers of different skill levels (paper 2). Part II focuses on the non-profit sector, analysing the determinants of the survival
or failure of non-governmental organisations (NGOs) in international development
International Trade and Retailing,
Get PDFAbstract The New Trade Theory predicts that international trade lowers prices for consumers and raises the choices available to them. This study shows that both predictions may no longer hold once adjustments in retailing are taken into account. We present a new model of retailing in general equilibrium and establish a trade-off between the number of products stocked and the number of retail outlets. The results demonstrate that international trade can lead to higher consumer prices if the retail market is relatively less competitive, and that retail assortments do not rise if consumers have a sufficiently low preference for diversity. Keywords: International Trade, Retailing, Diversity, Market Structure, Welfare, Monopolistic Competition. JEL Classification: F12, L11, L81 * I gratefully acknowledge research support from the German Science Foundation (DFG grant number EC 216/5-1). Thanks also to Jim Anderson, Beata Javorcik, James Markusen, J. Peter Neary, Volker Nocke, Michael Pflüger, Horst Raff, and Michael Rauscher for helpful comments and discussions. A previous version of this paper circulated with the subtitle "Diversity versus Accessibility and the Creation of 'Retail Deserts'" and was presented at various conferences and seminars
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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