1,721,192 research outputs found
Neoclassical and Sociological Perspectives on Segmented Labor Markets
Get PDFNeoclassical theory has been misrepresented in the segmented economy literature. Consequently, most tests of "structural" vs. "neoclassical" models are inadequate. Moreover, segmented economy theorists have concentrated on the least significant departures of segmented models from neoclassical economics. In fact, neoclassical economists have developed elements of a segmented labor market model which is similar to the segmented economy theories. We sketch this model and argue that the neoclassical model gives a precise meaning to the concept of dual or segmented labor markets but does not suggest that a classification system for job characteristics must rely on a single dimension.
Labor mobility and Inter-industry Wage Variation
Get PDFThis paper offers a new explanation for the empirically observed inter-industry wage variation. We represent an industry by a small open economy with inter-firm labor mobility. Each industry is characterized by a degree of learning-by-doing, learning-by-hiring, inter-firm mobility costs and technological level. In this economy we analyze how these features affect the wage level of the industry. The variety of knowledge within an industry and its capital intensity is also analyzed. Results show that industries with high learning-by-hiring and low mobility costs generally pay higher wages. More learning-by- doing and higher technological level in an industry is also giving higher wages. Results provide new hypotheses to be tested and are consistent with the finding that more capital intensive industries pay higher wages.labor mobility, inter-industry wage differences, learning-by-hiring
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
Poverty and Discrimination
Get PDFMany ideas about poverty and discrimination are nothing more than politically driven assertions unsupported by evidence. And even politically neutral studies that do try to assess evidence are often simply unreliable. In Poverty and Discrimination , economist Kevin Lang cuts through the vast literature on poverty and discrimination to determine what we actually know and how we know it. Using rigorous statistical analysis and economic thinking to judge what the best research is and which theories match the evidence, this book clears the ground for students, social scientists, and policymakers who want to understand--and help reduce--poverty and discrimination. It evaluates how well antipoverty and antidiscrimination policies and programs have worked--and whether they have sometimes actually made the problems worse. And it provides new insights about the causes of, and possible solutions to, poverty and discrimination. The book begins by asking, "Who is poor?" and by giving a brief history of poverty and poverty policy in the United States in the twentieth century, including the Welfare Reform Act of 1996. Among the topics covered are the changing definition of poverty, the relation between economic growth and poverty, and the effects of labor markets, education, family composition, and concentrated poverty. The book then evaluates the evidence on racial discrimination in areas such as education, employment, and criminal justice, as well as sex discrimination in the labor market, and assesses the effectiveness of antidiscrimination policies. Throughout, the book is grounded in the conviction that we must have much better empirical knowledge of poverty and discrimination if we hope to reduce them.poverty, discrimination, welfare, reform, economic growth, labor markets, education, family, race, employmwent, criminal justice
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 Note on Wealth as a Corruption-Controlling Device
Get PDFIn the standard moral hazard model, withholding of effort by the agent is not observable to the principal. We argue that this assumption has to be changed in applications that study corruption. The overwhelming majority of cases where corrupt politicians have been punished involve the detection of consumption levels that appear to be too high. The informativeness of an agent’s level of consumption depends on his initial level of wealth as conspicuous consumption of luxuries by wealthy agents leads to little updating of the principal’s belief about their honesty. This introduces a tendency to choose poor agents as they are easier to monitor. More generally, we show that, even if agents have similar preferences, there are contractual advantages to selecting particular types. We describe the basic problem of choosing agents and monitoring consumption, and discuss a number of features of the practical applications. We show that selecting rich politicians may not help fight corruption and that the political class will exhibit lower variance in consumption than the population. In settings were formal contracts matter, we show that monitoring consumption introduces a tendency towards low powered incentive schemes (and more generally low wages) and that the measure of “moral” costs that is often employed in the literature can be derived (not assumed).Choosing agents, monitoring consumption, low wages, moral costs
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