1,720,957 research outputs found
Essays on Innovation
No full textInnovation is the engine of economic growth for developed countries. In my dissertation, I study three different factors that affect firms’ innovation outcome. The first chapter of my dissertation shows that when courts systematically favor plaintiffs over defendants, their biased attitudes stifle innovation and reduce the financial value of innovative firms under their jurisdiction. The second chapter of my dissertation looks at another aspect of innovation output, namely the inventors. I show that inventors who work in cities with higher level of labor market concentration produce more patents while compensating that with lower quality of innovation. The third chapter of my paper shows that in firms where the extensive monitoring is absent; innovation output could also be the outcome of firms’ attempt to time the market
Two Essays on Investments: Corporate and Institutional Perspective
Full text linkIn my dissertation, I study factors that influence investments from either corporate or institutional perspective. First, I examine the sensitivity of corporate investment to internally generated cash flow and its pattern of change over time across countries. Second, I investigate how a firm's customer profile can shape its ownership structure of institutional investors.
Existing studies have documented a puzzling disappearance of investment-cash flow (ICF) sensitivity in the U.S.. In the first chapter, I explore whether economic and financial development can explain the extent of a country's ICF sensitivity and its evolution through time. I find that, in aggregate, ICF sensitivity has also faded around the world; yet it has remained high in countries with low economic and financial development. Further, I find that the access to external finance, especially equity finance, is a key channel through which country-level development affects the sensitivity of investment to internal cash flow. In more developed countries, external finance has become more accessible for firms when their internal cash flow is insufficient, thereby reducing their reliance on internal cash flow. The results indicate that once a country advances to a certain degree of financial and economic development, it becomes more efficient in allocating resources and therefore financial constraints at the individual firm level become less binding.
A growing literature has documented different financial implications of a concentrated customer base. In the second chapter, I examine how customer concentration affects institutional investors' investment decisions. I find that a firm's customer concentration tends to attract different groups of institutional investors, depending upon their investment horizons. Specifically, those institutions who trade actively (short-term) would buy the stocks of firms with a more concentrated customer base. Conversely, those institutions who trade less actively (long-term) would buy the stocks of firms with a less concentrated customer base. While the preference of long-term investors is supported by the increased risk associated with the dependency on a few large customers, I find that the improved stock liquidity is the channel through which a concentrated customer base attracts short-term investors. Further, my findings cannot be explained by information transfer along the supply chain
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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