1,721,043 research outputs found
Access Regulation, Financial Structure and Investment in Vertically Integrated Utilities: Evidence from EU Telecoms
Full text linkWe examine theoretically and empirically the relationship between access regulation, financial structure and investment decisions in network industries, analyzing if financial variables can be used as a strategic device to influence the regulator’s price setting decisions. Using a panel of 15 EU Public Telecommunication Operators (PTOs) over the period 1994-2005, we first investigate the determinants of regulated prices (both wholesale and retail), firm financial structure and investment, and then test the relationship between leverage, regulated charges and firm’s investment. However, our model suggests that if leverage influences the regulated access charges, then it will also impact competition in the downstream segment. Therefore, we also investigate the impact of the PTO’s leverage on market competition. Our results show that leverage positively affects regulated rates, as well as the PTOs’ investment rate, as predicted by Spiegel and Spulber (1994). Moreover, higher leverage also leads to higher access charges and an increase in leverage is followed by a decrease in the number of competitors and by an increase of the incumbent’s market share. This suggests that the strategic use of debt to discipline the regulator’s lack of commitment within a vertically integrated network industry may somewhat impair or delay competition in the retail segment, but has a favorable counterpart in mitigating the underinvestment problem.
Independence, Investment and Political Interference: Evidence from the European Union
Full text linkThis paper examines the implications of “modern” regulatory governance - i.e. the inception of Independent Regulatory Authorities (IRAs) - for the investment decisions of a large sample of EU publicly traded regulated firms from 1994 to 2004. These firms provide massively consumed services, and this is why governments are highly sensitive to regulatory decisions and outcomes. We therefore analyse and empirically investigate if: i) the inception of IRAs reduces the time-inconsistency problems that lead regulated firms to underinvest, and ii) governments’ political orientation and residual state ownership interfere with investment decisions. To control for potential endogeneity of the key institutional variables, we draw our identification strategy from the political economy literature. Our results show that regulatory independence has a positive impact on regulated firms’ investment while private vs. state ownership is not significant. We also find that, under executives at the extreme of the political spectrum, government interference in the functioning of the IRA is likely to re-introduce instability and uncertainty in the regulatory framework, thus undermining investment incentives.Institutions; Firm Investment; Private and State ownership; regulatory independence; government's political orientation
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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