1,721,094 research outputs found
Brand Puglia: la percezione da parte dei turisti e degli intermediari commerciali. Le politiche promozionali regionali di sostegno
No full textBackward and Forward Integration Along Global Value Chains
No full textBoth backward (upstream) and forward (downstream) vertical integration strategies shape the organization of global value chains (GVCs). Yet, many studies make the unrealistic assumption that integration decisions are binary and one-directional. That is, for each production stage, companies make the integration decision only once, and this can be either backward or forward but not in both directions. The aim of this paper is to analyze the firm-level organization of GVCs when both vertical integration decisions are taken into account. Exploiting a global sample of more than 1.4 million firms, we first document how midstream parents, which actually integrate on both directions along the chain, are at least as common as downstream and upstream parents. We then find that parent companies prefer to integrate production stages with a relatively low elasticity of substitution and with a technological proximity on the supply chain. Finally, we provide evidence that more than one subsidiary in a given location can perform the same production stage
Global value chains: New evidence for North Africa
No full textThis paper analyzes the participation and the position of North African countries in global value chains (GVCs). Exploiting the recently released Eora multiregional Input-Output tables, we describe regional and country GVC involvement. North African countries have not so far been able to fully integrate into international production networks. However, a large part of their (low) trade is due to value added related activities, mainly in the upstream phases, and the importance of foreign linkages has been increasing over time. We complement the Input-Output analysis with sectoral evidence from selected case studies and policy experiences. Overall, our results suggest that enhancing the GVC participation of North African countries has potential to substantially benefit local industries, countries and indeed the whole area. However, the ability to retain such benefits relies on specific local conditions, such as a favorable environment for foreign investments, and lower trade barriers, thus leaving room for policy intervention
Global value chains participation and productivity gains for North African firms
No full textThe emergence of global value chains (GVCs) has provided some firms the opportunity to internationalize by specializing in the production of specific inputs or tasks along the chain, with a direct impact on a country’s competitiveness. China, for instance, managed to enter low value added phases in GVCs to rapidly become a major player in world trade. Against this background, this paper asks whether North Africa, given its favourable geographic position in the Mediterranean and proximity to Europe, can grab similar opportunities. In particular, it analyzes the GVCs participation of North African firms and its implications for productivity. Since the coordination of vertically fragmented production processes increasingly relies on an adequate level of quality and reliability, especially when the inputs from several stages and locations must come together in a specific way, we identify firms involved in GVCs as traders with internationally recognized quality certification. Using a propensity score matching diff-in-diff method, the paper finds that firms that enter GVCs both perform better ex ante and show additional productivity gains ex post. Results suggest that policies designed to support certifications and compliance with international standards and to increase trust between firms in different countries, represent an important tool for linking developing countries to global production networks, with possible positive consequences on their economic development and growth
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
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