1,720,958 research outputs found
Determinantes del precio del ganado gordo bovino en pie de Medellín y Bogotá: 2009-2019
Get PDFTrabajoEconomist
Inversión y doble imposición en la Alianza del Pacífico: una estimación robusta
Get PDFLa Inversión Extranjera Directa (IED) en sectores productivos se encuentra aún en gran parte concentrada en países desarrollados, mientras que la inversión destinada a los mercados emergentes, como lo son la mayoría de las economías de América Latina, se encuentra fundamentalmente, ligada aún a procesos extractivos de commodities, lo cual expone a la región a los choque generados por los cambios del precio de éstas en los mercados internacionales y no permite capitalizar los beneficios tradicionales ligados a los procesos de IED -- Dentro de las estrategias utilizadas por los países para incrementar el flujo de inversión extranjera están las negociaciones en bloque y la suscripción de tratados para evitar la doble tributación -- En este proyecto analizamos como se ha comportado la inversión extranjera directa en el marco de la Alianza del Pacifico, y el efecto que tiene sobre esta la celebración de tratados o convenios para evitar la doble tributación -- Para medir la incidencia que tienen los tratados de doble tributación en la inversión extranjera entre los miembros de la Alianza del Pacífico se implementaron diferentes modelos econométricos con entre los actuales miembros de la Alianza del Pacífico en el periodo comprendido entre mayo de 2003 a abril de 2016 -- Los resultados sugieren que los tratados para evitar la doble tributación juegan un papel difuso en temas de inversión, pues parece ser que más que asociarse a un efecto determinado, estos podrán atraer o repeler la inversión dependiendo de la coyuntura que se analice en un espacio y tiempo determinadoForeign Direct Investment (FDI) in productive sectors is still largely concentrated in developed countries, while investment destined to emerging markets, in most of the Latin American economies, is fundamentally linked to extractive processes of commodities, which exposes the region to shocks generated by changes in the price of these products in the international markets and at the same time it does not allow to acquire the benefits linked to FDI processes -- One of the strategies used by countries to increase the flow of foreign investment are the block negotiations and the signing of double tax treaties -- In this paper we analyze how foreign direct investment has behaved within the framework of the Pacific Alliance, and the effect of double taxation treaties in the FDI -- To measure the incidence of double taxation treaties on foreign investment among the members of the Pacific Alliance, different econometric models were implemented among the current members of the Pacific Alliance in the period of time from May 2003 to April 2016 -- The results suggest that double taxation treaties play a diffuse role in foreign direct investment, rather than being associated with a specific effect, these treaties may attract or repel investment depending on the specific place and time analyzedMaestríaMagíster en Economía Aplicad
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
A spatial one-sided error model to identify where unarrested criminals live
No full textThe place of residence of unarrested criminals is mostly unknown. Existing research has not yet exploited that arrested criminals are a lower bound for criminals to enhance law enforcement and design structural policies. Based upon the stochastic frontier analysis, we propose a model to identify neighborhoods where unarrested criminals are likelier to live. We illustrate our approach empirically by considering Medellín, Colombia, a natural experimental field to analyze crime. We identify that unarrested murderers and drug dealers often reside in overlapping or neighboring areas with shared risk factors, reflecting the city's history of drug-related violence. In addition, we find that employment policies targeting the young and unemployed living in the central-east and the north can mitigate homicides and motorcycle thefts. These findings illustrate how our proposal can be implemented to strengthen state capacities and design targeted, place-based policies for preventing and mitigating crime
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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