1,720,963 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Item non-response in SHARE wave 2

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    Essays on personal saving

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    This dissertation examines the evolution of the personal saving rate in the United States and Japan. The first chapter compares the Consumer Expenditure Survey (CEX) to the U.S. national accounts and finds major discrepancies between the two, with the divergence increasing over time. After adjusting the CEX in order to match the national accounts, we break down the drop of the U.S. personal saving rate across different population groups (defined by demographic and economic characteristics) and we find that almost all groups reduce their saving, that stockholding and homeownership influence saving negatively but that only the latter contributed to the drop in the saving rate, together with the decreased saving of the elderly and of the non-working. In the second chapter we build a microsimulation model of the U.S. economy that consists of three parts that deal with: (a) the demographic evolution of the system, during which individuals are hit by shocks representing demographic events (birth, death, marriage, divorce, leaving the parent family); (b) the generation of economic characteristics (education, occupation, labor force participation, home ownership); (c) the estimation of a consumption function, which depends on current wealth, projected future human and social security wealth. The third chapter examines the reasons behind the continued high saving rate of the Japanese households using data from the national accounts. After adjusting the data considerably in order to correct serious conceptual and measurement problems, we find that households incur considerable capital losses in their (direct or indirect) investment in the corporate sector. These losses are due to the very low rate on return on capital that corporations achieve and the miniscule dividends that they pay to the equity holders. Firms can operate in this way because in Japan shareholders have little power to influence the behavior of managers, who retain the bulk of profits within the firms and proceed to invest them in a very inefficient way. Households thus have to increase their saving in order to compensate for their capital losses

    Variations on the Author

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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