1,720,994 research outputs found
An empirical assessment of household sorting into private schooling under public education provision.
Full text linkWe estimate structural quantile treatment effects to analyze the relationship between household income and sorting into private or public education, using Italian data. Public education provision is redistributive when rich families, who contribute to its financing, find it optimal to sort out of the public system to buy the educational services in the private market. This may occur when the education quality is lower in the public compared to the private sector, meaning that households with higher income capacity face lower opportunity costs from sorting out of the public system. We exploit heterogeneity in expected tax deductions to exogenously manipulate the distribution of net of taxes income, equalized by family needs, and explore the consequences of this manipulation on various quantiles of the distribution of the amount of the educational transfers in-kind accruing to the households, valuing public education. We find that an increase in income reduces the amount of educational transfers in-kind (i) more for higher quantiles of the educational transfers in-kind, indicating that households with higher preferences for quality sort out of the public education system; (ii) more for lower quantiles of the households’ income capacity, indicating that richer households receive lower transfers for a given preference quality
The measurement of segregation sensitive spatial income deprivation
No full textWe develop dominance criteria to assess the patterns of residential ethnic segregation and urban income deprivation across neighborhoods of a city. The results combine aggregate information on inequality and residential segregation within neighborhoods and disparities across neighborhoods in average incomes. We use this methodology to investigate the dynamic of these phenomena in the cities of Chicago and in New York from 1990 to 2012
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
Disuguaglianze e mobilità sociale
No full textL’obiettivo di questo capitolo è di illustrare, utilizzando strumenti teorici comuni nella letteratura sulla misurazione della disuguaglianza e dati relativi all’evoluzione dei redditi degli individui, come sia possibile analizzare e integrare tra di loro valutazioni relative alla disuguaglianza dei redditi ed alla mobilità sociale. L’analisi empirica presentata rivela il ruolo importante svolto dalle componenti di mobilità intertemporale dei redditi lungo il ciclo vitale nel determinare la disuguaglianza nei redditi permanenti
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
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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