188,094 research outputs found
Some effects of transaction taxes under different microstructures
No full textWe show that the effectiveness of transaction taxes depends on the market microstructure. Within our model, heterogeneous traders use a blend of technical and fundamental trading strategies to determine their orders. In addition, they may become inactive if the profitability of trading decreases. We find that in a continuous double auction market the imposition of a transaction tax is not likely to stabilize financial markets since a reduction in market liquidity amplifies the average price impact of a given order. In a dealership market, however, abundant liquidity is provided by specialists, and thus a transaction tax may reduce volatility by crowding out speculative orders
On inference processes
No full textNaeve P, Westerhoff T. On inference processes. In: Edwards D, Raun NE, eds. COMPSTAT 1988: proceedings in computational statistics. 8th Symposium held in Copenhagen 1988. Heidelberg: Physica-Verl.; 1988: 193-198
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Basil Studer, Trinity and Incarnation. The Faith of the Early Church, Translated by Matthias Westerhoff, Edited by Andrew Louth, Edinburgh, T. & T. Clark, 1995
No full textMaraval Pierre. Basil Studer, Trinity and Incarnation. The Faith of the Early Church, Translated by Matthias Westerhoff, Edited by Andrew Louth, Edinburgh, T. & T. Clark, 1995. In: Revue d'histoire et de philosophie religieuses, 75e année n°3, Juillet-août-septembre 1995. p. 342
Basil Studer, Trinity and Incarnation. The Faith of the Early Church, Translated by Matthias Westerhoff, Edited by Andrew Louth, Edinburgh, T. & T. Clark, 1995
No full textMaraval Pierre. Basil Studer, Trinity and Incarnation. The Faith of the Early Church, Translated by Matthias Westerhoff, Edited by Andrew Louth, Edinburgh, T. & T. Clark, 1995. In: Revue d'histoire et de philosophie religieuses, 75e année n°3, Juillet-août-septembre 1995. p. 342
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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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