1,723,712 research outputs found

    THREE ESSAYS ON FACTOR MOBILITY

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    This dissertation consists of three essays on trade policy and factor mobility. The first essay studies the effects of preferential tariff rates on China's imports from African Least Developed Countries (LDCs). On the second ministerial meeting of China-Africa Cooperation Forum (FOCAC) in 2003, China offered duty-free treatment to 190 products originating from a group of LDCs in Africa, so as to facilitate their entry into the Chinese market. The goal of this essay is to examine whether or not this agreement has some economic content. Based on detailed import data at the 6-digit harmonized system level, we employ a triple-difference (DDD) approach to empirically investigate the effects of preferential tariff rates on Chinese imports from African LDCs. The estimation results show that, on average, there is no evidence that duty free access helped African LDCs effectively gain access to the Chinese market in the years following the initial implementation of this policy. However, we do find that there is an increase of imports in the last year of our sample, suggesting that the impact is growing over time. We also find that agricultural goods experience the largest increase in import values, while imports of textile goods are still relative low. The second essay investigates the impact on China's economic growth of the State-Sponsored Study Abroad Programmes (SSSAP). It is widely believed that human capital has played a crucial role in the Chinese economic miracle. In recent years, the Chinese government has launched a series of SSSAP as to further improve domestic human capital through foreign training. In this essay, we explore the effects of such programs on China's economic growth in a Lucas-type endogenous growth model with human capital accumulation. We first derive the growth-maximizing tax rate on output which is used to finance public spending on education. Next, we determine the optimal share of educational expenditure between home-educated and foreign-educated human capital, taking tax rate on output as given. Due to the complexity of the model, we also carry out a series of numerical simulations to examine the effect of SSSAP on Chinese economic growth. In the third essay, we study the European citizens' preferences concerning the allocation of power between European Union (EU) and Member States in the domain of immigration policy. We first develop a simple framework to show that (i) harmonization of immigration policies is likely to lead to a more liberal immigration policy; (ii) there exists a strong relationship between EU citizens' education levels and their supports for delegating competences to the EU institutions in the field of immigration. Using several rounds of Eurobarometer surveys carried out between 2000 and 2008, we test the theoretical predictions, and find that on average education level has a positive, statistically significant impact on natives' preferences over a common immigration policy. In addition, we find that self-reported political orientation and overall perception of the European Union also affect natives' attitudes towards the harmonization of immigration policy

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    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

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    “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

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    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

    Frames de Gabor: el principio de dualidad de Ron y Shen

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    [EN] We introduce the frame theory and the ir relationship with Riesz bases. We focus on the study of Gabor frames and conclude with the Ron-Shen duality principie[ES] Introducimos la teoria de frames y su relación con las bases de Riesz. Nos centramos en el estudio de los frames de Gabor y llegamos al principio de dualidad de Ron y Shen. RESUMEN (esoañol)Primo Tárraga, E. (2014). Frames de Gabor: el principio de dualidad de Ron y Shen. Universitat Politècnica de València. https://riunet.upv.es/handle/10251/53355Archivo delegad

    Dispelling the Myths Behind First-author Citation Counts

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    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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    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
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