1,720,961 research outputs found
Volatility and liquidity in Eastern Europe financial markets under efficiency and transparency conditions
No full textFollowing the consequences of the global financial crises, transparency and efficiency conditions of a local economic system have become important remedies for restoring of financial markets. This study provides measure of transparency and efficiency with correlation to liquidity and volatility and is taking into account the stock price reaction of emerging financial stock markets of Eastern Europe area and Turkey. We find that observed countries don’t fully answer the expected sign of transparency, liquidity and risk measure, which meets the innovation from previous works (Berglöf, Pajuste, 2005). It raises doubts concerning functioning of legal basement in these countries and affects the decisions about investments. In line with previous research (Ivanov, Lomev and Bogdanova, 2012) our findings show that these countries don’t prove to have certain transparency expectations, which could result in a limited access to market information and in a decrease of market efficiency
Why do banks react differently to short-selling bans? Evidence from the Asia-Pacific area and the United States
No full textThe use of short-selling bans in different countries has greatly caught the attention of policy modelling. Our study is among the first studies to try to explain the phenomenon of different bank price reactions in terms of country and stock market conditions, looking at both the stock price reaction and risk. Overall, our findings suggest that the impacts of these bans on overall market efficiency were heterogeneous and, in most cases, modest for the countries analysed. Indeed, either we do not observe any improvements or the improvements are only short-lived. For the first time, we document that banks react differently to ban restrictions mostly because of differences in terms of their fundamental factors (balance sheet indicators). Given that Us and Asia-Pacific banks react differently to a ban on short selling depending on the particular financial structure of each market, when taking these actions, policy makers should consider which firm characteristics are most important and should pay attention to whether these interventions are effective in the market. Moreover, short-selling restrictions did not contribute to containing the volatility of the financial stocks subjected to the bans; on the contrary, our results indicate that negative volatility increased in some countries
Looking at Socially Responsible Investment Strategies Through the Lenses of the Global ETF Industry
Full text linkEnvironmental, Social, and Governance (ESG) ratings feature statistical and economic problems undermining their reliability as valid proxies for corporates’ social performance. To overcome this ratings providers specific bias, we focus on global sample of ESG-oriented Exchange Traded Funds (ETFs). Studying passive and pre-committed strategies provide us with several economic and econometric advantages, allowing us to document that Socially Responsible Investments (SRI)-oriented strategies generate significantly higher average stock market returns and liquidity. However, the identified overperformance is concentrated in months of extreme climate activity, while the effect reverses during financial crises. These findings confirm that investors react to non-pecuniary shocks by increasing the weights assigned to SRI investments in their portfolio, but their preference shifts back towards traditional strategies during economic downturns
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
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