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Spécialisation régionale et concentration spatiale de l'industrie manufacturière au Maroc
This paper analyses the spatial distribution of manufacturing industries in Morocco by examining the degree of spatial concentration of industrial sectors and their location patterns. It aims, on the one hand, to measure through dedicated indices the level of spatial concentration of manufacturing activities and, on the other hand, to analyse the consequential regional specialization.
To achieve our objective, we will use three indices: the Gini index, the Herfindahl index and the Ellison-Glaeser index. To capture the main components of the industrial configuration at the provincial level, we use a variable for the number of manufacturing firms and a variable for the number of manufacturing workers. Both variables are broken down by manufacturing sector and by province. Our analysis covers the entire Moroccan territory with 12 regions. The regions are organized into 75 provinces corresponding to the spatial scale used in our analysis. The data used are from the annual survey of manufacturing industries conducted by the Ministry of Industry, Investment, Trade and the Digital Economy.
As for sectoral concentration, our results suggest that most of the manufacturing industry is concentrated in a small number of provinces and regions. This result is verified for the two variables of our study, namely the number of manufacturing firms and the number of manufacturing jobs. It would therefore seem that there is a certain structure in the location of manufacturing activities in Morocco. Indeed, there is a clear trend toward increasing concentration of manufacturing in specific provinces or regions. Regarding regional industrial specialization, our results show a tendency towards diversification in the provinces that are home to the major urban centers, such as Casablanca-Settat, Rabat-Salé-Kénitra and Tangier-Tétouan-Al Hoceima. The diversified provinces are characterized by the presence of a range of manufacturing industries allowing them to benefit from diversification externalities. Conversely, medium and small provinces tend to specialization. These relatively isolated provinces are characterized by the presence of few manufacturing industries, but can benefit from externalities related to industrial specialization.
Keywords: Geographic concentration, regional specialization, spatial externalities, concentration indices.
JEL Classification: R12, L11, D62, C43.
Paper type: Empirical researchCet article propose d’analyser la répartition spatiale des industries manufacturières au Maroc, en examinant le degré de concentration spatiale des secteurs industriels et leurs schémas de localisation. Il s’agit, d’un côté, de mesurer à travers des indices dédiés le niveau de concentration spatiale des activités manufacturières et, d’un autre côté, d’analyser la spécialisation régionale qui en résulte.
Pour atteindre notre objectif, nous allons nous baser sur trois indices, à savoir l’indice de Gini, l’indice d’Herfindahl et l’indice d’Ellison et Glaeser. Pour tenir compte des principales composantes de la configuration industrielle au niveau provincial, nous utilisons une variable relative au nombre d’entreprises manufacturières, ainsi qu’une variable relative au nombre d’emplois manufacturiers. Les deux variables sont ventilées par secteurs manufacturiers et par provinces. Notre analyse couvre l’intégralité du territoire marocain comptant 12 régions. Les régions sont organisées en 75 provinces et 89 préfectures correspondant à l’échelle spatiale retenue pour notre analyse. Les données utilisées sont issues de l’enquête annuelle sur les industries de transformation, effectuée par le ministère de l’Industrie, de l’Investissement, du Commerce et de l’Économie numérique.
Pour ce qui est de la concentration sectorielle, nos résultats suggèrent que l’important des industries manufacturières se voit concentré dans un nombre réduit de provinces et régions. Ce constat est vérifié pour les deux variables de notre étude à savoir le nombre d’entreprises manufacturières et le nombre d’emplois manufacturiers. Il semblerait donc qu'il y ait une certaine structure dans la localisation des activités manufacturières au Maroc. En effet, il existe une orientation claire vers une concentration industrielle de plus en plus importante dans des provinces ou régions spécifiques. Concernant la spécialisation industrielle régionale, nos résultats montrent une tendance à la diversification des provinces qui abritent les grandes métropoles à l’instar des régions de Casablanca-Settat, Rabat-Salé-Kénitra et Tanger-Tétouan-Al Hoceima. Les provinces diversifiées sont caractérisées par la présence d’une palette d’industries manufacturières leur permettant de bénéficier des externalités de diversification. À l’opposé, les provinces de taille moyenne et petite ont tendance à la spécialisation. Ces provinces relativement isolées sont caractérisées par la présence de peu d’industries manufacturières, mais peuvent bénéficier d’externalités liées à la spécialisation industrielle.
Mots clés : Concentration géographique, Spécialisation régionale, externalités spatiales, indices de concentration.
Classification JEL : R12, L11, D62, C43.
Type de l’article : Recherche appliqué
Going Beyond Counting First Authors in Author Co-citation Analysis
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
Variations on the Author
“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
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
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
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
Author-wise bibliometric analysis based on entropy.
Author-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
In Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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