1,720,955 research outputs found
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
Evaluation de l'impact de la politique monétaire sur la volatilité des cours boursiers : Réexamen de la relation sous-jacente à court et à long terme
Full text linkThis paper examines the impact of monetary policy on stock market volatility in Morocco. The study is based on the analysis of monthly data covering the period from 2002 to 2020, collected from the Moroccan Central Bank (BAM) and the Casablanca Stock Exchange (BVC). The objective is to understand how the decisions of the Central Bank influence financial markets and the national economy.
The analysis relies on advanced econometric methods, including tests for determining the optimal lag and cointegration. The results reveal that the monetary policy conducted by BAM has a significant impact on long-term stock market volatility. Variations in interbank interest rates, M3 money supply, private sector credit (CSP), and inflation rate (INF) are associated with sustained fluctuations in the MASI index of the Casablanca Stock Exchange.
The study also identifies the transmission mechanisms through which monetary policy influences stock markets. Changes in interbank interest rates directly impact business investment decisions, affecting profitability and stock prices. Additionally, M3 money supply and private sector credit CSP act as indirect channels by influencing economic activity and investor demand for equities.
Keywords: Monetary Policy, Stock Price Volatility, VECM (Vector Error Correction Model).
JEL Classification : C58, E32, E42, E44, E47
Paper type: Empirical research.Ce papier se penche sur l'impact de la politique monétaire sur la volatilité des cours boursiers au Maroc. L'étude repose sur l'analyse de données mensuelles couvrant la période de 2002 à 2020, collectées auprès de la Banque centrale marocaine (BAM) et de la Bourse des valeurs de Casablanca (BVC). L'objectif est de comprendre comment les décisions de la Banque centrale influencent les marchés financiers et l'économie nationale.
L'analyse repose sur des méthodes économétriques avancées, notamment les tests de détermination du retard optimal et de cointégration. Les résultats révèlent que la politique monétaire exercée par la BAM a un impact significatif sur la volatilité des cours boursiers à long terme. Les variations des taux d'intérêt interbancaires, de la masse monétaire M3, du crédit au secteur privé (CSP) et du taux d'inflation (INF) sont associées à des fluctuations durables de l'indice MASI de la Bourse de Casablanca.
L'étude identifie également les mécanismes de transmission par lesquels la politique monétaire influence les marchés boursiers. Les variations des taux d'intérêt interbancaires ont un impact direct sur les décisions d'investissement des entreprises, ce qui influe sur la rentabilité et les cours boursiers. De plus, la masse monétaire M3 et le crédit au secteur privé CSP agissent comme des canaux indirects en influençant l'activité économique et la demande d'investisseurs en actions
Mots clés : Politique monétaire, volatilité des prix boursiers, VECM.
Classification JEL : C58, E32, E42, E44, E47
Type de l’article : Recherche appliquée
L’ analyse empirique de l’impact de la politique monétaire sur la bourse des valeurs au Maroc : Un essai à l’aide d’un modèle vectoriel autorégressif (VAR)
Full text linkThe global importance of central banks in navigating financial crises and economic fluctuations has been underscored (Lorenzoni, 2015). The pivotal role of the institution overseeing monetary policy in shaping both the term structure of interest rates and stock market dynamics is evident. Economic theory posits a direct link between money and prices, with an increase in the money supply leading to proportional inflation, and vice versa (Dées, 2019). Keynesian perspectives, emphasizing nominal rigidities and long-term money neutrality, assert that a rising money supply influences the real economy through interest rate reduction. This dual impact of money on economic agents remains underexplored quantitatively in the Moroccan context. This study aims to fill this gap by introducing a novel quantitative framework. Employing a Vector Autoregression (VAR) model with simultaneous equations, the research assesses the short and long-term causality between central bank decisions, expressed as cyclical variables, and the stock market's performance. The analysis aims to elucidate the directional impact of monetary policy on asset returns and prices in the Moroccan context
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
Evaluation de l'impact de la politique monétaire sur la volatilité des cours boursiers : Réexamen de la relation sous-jacente à court et à long terme
No full textThis paper examines the impact of monetary policy on stock market volatility in Morocco. The study is based on the analysis of monthly data covering the period from 2002 to 2020, collected from the Moroccan Central Bank (BAM) and the Casablanca Stock Exchange (BVC). The objective is to understand how the decisions of the Central Bank influence financial markets and the national economy.
The analysis relies on advanced econometric methods, including tests for determining the optimal lag and cointegration. The results reveal that the monetary policy conducted by BAM has a significant impact on long-term stock market volatility. Variations in interbank interest rates, M3 money supply, private sector credit (CSP), and inflation rate (INF) are associated with sustained fluctuations in the MASI index of the Casablanca Stock Exchange.
The study also identifies the transmission mechanisms through which monetary policy influences stock markets. Changes in interbank interest rates directly impact business investment decisions, affecting profitability and stock prices. Additionally, M3 money supply and private sector credit CSP act as indirect channels by influencing economic activity and investor demand for equities.
Keywords: Monetary Policy, Stock Price Volatility, VECM (Vector Error Correction Model).
JEL Classification : C58, E32, E42, E44, E47
Paper type: Empirical research.Ce papier se penche sur l'impact de la politique monétaire sur la volatilité des cours boursiers au Maroc. L'étude repose sur l'analyse de données mensuelles couvrant la période de 2002 à 2020, collectées auprès de la Banque centrale marocaine (BAM) et de la Bourse des valeurs de Casablanca (BVC). L'objectif est de comprendre comment les décisions de la Banque centrale influencent les marchés financiers et l'économie nationale.
L'analyse repose sur des méthodes économétriques avancées, notamment les tests de détermination du retard optimal et de cointégration. Les résultats révèlent que la politique monétaire exercée par la BAM a un impact significatif sur la volatilité des cours boursiers à long terme. Les variations des taux d'intérêt interbancaires, de la masse monétaire M3, du crédit au secteur privé (CSP) et du taux d'inflation (INF) sont associées à des fluctuations durables de l'indice MASI de la Bourse de Casablanca.
L'étude identifie également les mécanismes de transmission par lesquels la politique monétaire influence les marchés boursiers. Les variations des taux d'intérêt interbancaires ont un impact direct sur les décisions d'investissement des entreprises, ce qui influe sur la rentabilité et les cours boursiers. De plus, la masse monétaire M3 et le crédit au secteur privé CSP agissent comme des canaux indirects en influençant l'activité économique et la demande d'investisseurs en actions
Mots clés : Politique monétaire, volatilité des prix boursiers, VECM.
Classification JEL : C58, E32, E42, E44, E47
Type de l’article : Recherche appliquée
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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