1,720,991 research outputs found
Differences between GTAP and TiVA databases and their Implications for Trade in Value-Added Indicators
No full textFragmentation of global production requires measurement of trade in value added, which accounts for the way slices of value embedded
in goods or services are added at each step of increasingly international manufacturing processes within global supply chains. The
quality of indicators measuring trade in value added finally depends on the quality of the underlying global Inter-Country Input-Output
tables which, in turn, depend on the quality and availability of underlying national statistics and the balancing and estimation techniques used in the harmonization procedure. Although the
use of statistics based on these tables has become more routine in economic research, there is neither harmonization among different global databases nor a standard in the construction of data on which trade in value added is estimated. This contribution is an attempt to systematize the potential sources of the differences between databases and to show how estimations of trade in value added are impacted. Specifically, it provides a comparison between two of the main global databases used for macroeconomic analysis of global value chains and trade in value added patterns, namely, the GTAP Data Base and the OECD-WTO TiVA database, and provides a discussion of the reasons
for the deviation in the estimates of global value chains-related trade. In the first part, a description of the databases and the underlying
construction methodologies is provided. In the second part, the differences between the two databases in structural economic variables are presented. Finally, major TiVA indicators are estimated based on the different databases and discrepancies among them are discussed
Una valutazione quantitativa dell’accordo di libero scambio UE-MERCOSU
No full textLo Studio presenta un’analisi descrittiva dell’interscambio tra Italia e Mercosur e unasimulazione controfattuale volta a valutare come l'Accordo di associazione commerciale tra Unione Europea (UE) e Mercosur potrebbe influire sui flussi commerciali dell’Italia. La prima parte è dedicata alla ricostruzione delle relazioni economiche traItalia e Mercosur, con una disamina degli interessi commerciali italiani in termini di esportazioni e importazioni e un approfondimento dedicato al settore agroalimentare. La seconda parte riguarda una simulazione quantitativa condotta attraversoun modello di equilibrio generale globale per valutare gli effetti economici attesi dell’Accordo. I risultati della simulazione mostrano che i partner su entrambe le sponde dell'Atlantico potranno registrare un aumento dei flussi commerciali e delPIL a seguito dell'Accordo, sebbene una certa eterogeneità dei risultati, sia a livello di aree che settoriale, è stata riscontrata nello Studi
GTAP and TiVA: Differences between the two databases and their Implications for Trade in Value-Added Indicators
No full textFragmentation of global production requires measurement of trade in value added, which accounts for the way slices of value embedded in goods or services are added at each step of increasingly international manufacturing processes within global supply chains. The quality of indicators measuring trade in value added finally depends on the quality of the underlying global Inter-Country Input-Output table which, in turn, depends on the quality and availability of underlying national statistics and the balancing and estimation techniques used in the harmonization procedure. Although the use of statistics based on this accounting has become more routine in economic research, there is neither harmonization among different global databases nor a standard in the construction of data on which trade in value added is estimated. This work is an attempt to systematize the potential sources of the differences between global databases and to show the deviation in the estimates of global value chains related trade
Differences between GTAP and TiVA databases and their Implications for Trade in Value- Added Indicators
No full text
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
Scenari d’impatto della crisi Covid-19 sugli scambi internazionali e le nuove sfide sui mercati
No full textVariations 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
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