1,721,159 research outputs found
The impact of immigration on the employment of natives in regional labour markets: a meta-analysis
No full textImmigration is a phenomenon of growing significance in many countries. Increasing social tensions are leading to political pressure to limit a further influx of foreign-born persons on the grounds that the absorption capacity of host countries has been exceeded and social cohesion threatened. There is also in public discourse a common perception of immigration resulting in economic costs, particularly with respect to wages and employment opportunities of the native born. This warrants a scientific assessment, using comparative applied research, of the empirical validity of the perception of a negative impact of immigration on labour market outcomes. We apply meta-analytic techniques to 165 estimates from 9 recent studies for various OECD countries and assess whether immigration leads to job displacement among native workers. The ‘consensus estimate’ of the decline in native-born employment following a 1 percent increase in the number of immigrants is a mere 0.024 percent. However, the impact is somewhat larger on female than on male employment. The negative employment effect is also greater in Europe than in the United States. Furthermore, the results are sensitive to the choice of the study design. For example, failure to control for endogeneity of immigration itself leads to an underestimate of its employment impact
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
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
Small States & Small Island States : Implications of Size, Location & Isolation for Prosperity
No full textMeasuring the economic impact of immigration: A scoping paper
No full textThis discussion paper has three objectives. Firstly, it provides a brief review of recent international empirical research on the labour market impact of immigration. The synthesis of this literature is facilitated by reference to the results from a recent meta-analysis of the impact of immigration on wages. Secondly, the paper briefly reviews international research on other dimensions of the economic impact of immigration, namely productivity and technical change, trade and international relations, the fiscal impact, socio-economic impacts and externalities, and economy-wide (general equilibrium) effects. The approach adopted in considering each of these impacts is to identify the main issues associated with the particular impact, followed by key international references and, where available, New Zealand references on the particular type of impact. The gaps in NZ research are then identified along with any difficulties with the data available for replicating the international studies in New Zealand. Thirdly, the paper seeks to identify feasible (in terms of data availability) suggestions for further research that would add to our knowledge of the economic impact of immigration in New Zealand
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
Return and onward migration, attachment and travel of New Zealand migrants to Australia
No full textThis article is concerned with the international mobility of New Zealanders who migrate to Australia. We study New Zealand migrants arriving in Australia between 1 August 1999 and 31 luly 2002. We track all subsequent moves of these migrants out of and hack into Australia, up to luly 2005. Using hazard models, we find that the removal of labour market-related social security eligibility by Australia for New Zealand migrants increased the probability of remigration from Australia among those who had intended to settle permanently. Competing risk models suggested no difference between the impacts of the policy changes on onward or return moves. Settlers arriving after the policy changes were more likely to migrate again, to have lower attachment to Australia, and to make more trips away
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