1,720,965 research outputs found
Transport cost in location practice and economic geography:traditional theories, some new dimensions and policy implications
Get PDFabstract. This paper outlines the main theoretical approaches to the role of transport in spatial organization and investigates possible new extensions at a theoretical and practical level, focusing on the analysis of transport cost. Beginning from the traditional theories of spatial distribution and the location of economic activities under transport cost, the analysis focuses on the related approaches of the new economic geography, which are based on the assumptions of the known "iceberg cost". After that, through the presentation of indicative empirical studies, the paper attempts to clarify new issues that should be taken into account in the relevant theoretical considerations as well as in the political practice. Thus, factors such as the change of production structure in the modern economies with the production of more quality products, lower mass, and higher relative value and intangible goods, in combination with the improved transport technology, have contributed to a continuous reduction of the transport cost of raw materials and productive goods over the years. These developments along with the growing importance of cost of moving people should be taken into account in the new theoretical interrogations and the political practice of regional and urban development. contents
Spatial cohesion in Greece: the impact of GDP revision in the measurement of spatial inequalities in Greece and policy dimensions
Get PDFΤο άρθρο περιλαμβάνει μια συγκριτική ανάλυ-ση της μέτρησης των χωρικών ανισοτήτων (σεπεριφερειακό και νομαρχιακό επίπεδο) της Ελ-λάδας, πριν και μετά την τελευταία αναθεώρησητου ΑΕΠ. Κύριος στόχος είναι να προσδιορισθείο βαθμός και το περιεχόμενο της μεταβολής τωνανισοτήτων μετά την αναθεώρηση, προκειμένουνα αξιολογηθεί η νέα κατάσταση και να τεθεί η πε-ριφερειακή πολιτική στις σωστές της διαστάσεις.Η ανάλυση βασίζεται σε στοιχεία ΑΕΠ (συνολικούκαι κατά κεφαλήν), για τα έτη 2003 και 2001, πρινκαι μετά την αναθεώρηση, καθώς επίσης και τουπληθυσμού της τελευταίας απογραφής της ΕΣΥΕ.Η στατιστική επεξεργασία γίνεται με τη χρήση ει-δικών μεθόδων περιφερειακής ανάλυσης για τηδιερεύνηση των χωρικών ανισοτήτων. Το συμπέ-ρασμα που προκύπτει, είναι ότι η αναθεώρησηέχει επηρεάσει τις χωρικές ανισότητες της Ελλάδαςκαι συνεπώς, η περιφερειακή πολιτική θα πρέπεινα προσαρμοσθεί κατάλληλα στις νέες συνθήκες.The paper provides a systematic comparativeexploration of the measurement of spatial inequalitiesin Greece, at regional and prefecturallevel, before and after the last GDP revision.The aim is to determine the rate and the contentof change in spatial inequalities - towardseither an increase or decline - after the revision,so as to evaluate the new situation andset regional policy in its proper dimensions.The analysis is based on the examination ofGDP data (total and per capita) for the years2003 and 2001, before and after the revision,as well as on population derived from the lastCensus (2001). The paper uses statistical methodsof regional analysis for the exploration ofspatial inequalities. The main conclusion isthat the spatial disparities have been affectedfrom the revision in a remarkable degree andtherefore the regional policy must be suitablyadapted in the new conditions
Sectoral specialization and telework possibility: the case of Greek regions
Get PDFResearch and policy efforts have focused on the expansion of teleworking over the last few years, especially during the Covid-19 pandemic. However, not all occupations and areas are suitable for teleworking. Using the Location Quotient and Pearson’s correlation coefficient index, this study examined the relationship between sectoral specialization and the possibility of telework at regional level in Greece, in order to identify the most suitable economic sectors and regions for telework. Spatial sectoral differentiation is related to the extent of telework diffusion, which appears to be more common in the tertiary sector. Teleworking appears to have exacerbated regional disparities in areas more specialized in trade and tourism activities. A contemporary digital strategy could contribute to a more balanced development of the country. These developments may reverse existing trends in the attractiveness of telecommuting in metropolitan areas and large urban centers
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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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