1,720,971 research outputs found
Resources, scarcities and rents: technological interdependence and the dynamics of socio-economic structures
No full textThe relationship between scarcities and producibility calls attention to the relationship between resources and socio-economic structures, as alternative configurations of interests in society may lead to different patterns of re source utilization and different dynamic trajectories. In this way, the structural analysis of resources leads to the political economy of resources and structural change.
Both the structural and the macroeconomic approaches to scarcities and rents highlight the role of economic and technological history in making visible constraints and opportunities arising from the changing relationship between natural or technological scarcities and the producibility of resources and goods. Different historical contexts also had an important influence in drifting the economists’ attention from scarcity to producibility, or the other way round, and in shaping the economic theory of resources accordingly. The dynamic relationship between scarcity and producibility provides a useful heuristic for assessing the economists’ changing concentration of attention for the allocation of given resources or for the overcoming of re source bottlenecks through the transformation of production structure
Resources, producibility and economic dynamics: a framework
No full textThe evolving relationship between the ownership and utilization of nonproduced
resources, the distribution of national income and wealth, and the formation and investment of capital funds within and across countries is a central feature in the structural dynamics of the world economy. Important features of that relationship have been a central focus of the theory of economic dynamics since Thomas Robert Malthus’s (1815a, 1815b), Edward West’s (1815) and David Ricardo’s (1817) analysis of decreasing returns due to the emergence of scarcities and complementarities between productive inputs (which implies that the utilization of any given technique requires the maintenance of given proportions between those inputs). A central feature of the structural tradition in the study of resource-induced economic dynamics is the attention to the influence of changing re source constraints on the compositional dynamics of the economic system, quite independently of the behavioural propensities of individual agents or groups. This argument calls attention to the existence of critical, if seldom acknowledged, thresholds along the dynamic path of any given economic system, due to both the utilization of non-produced resources and changes in which
resources are used across different time periods. The existence of those thresholds may thwart the economic system from one dynamic path to another. This possibility highlights the important role of economic (structural) policy in stimulating or slowing down the pace of resource-induced structural transformation (that is, structural transformation induced by constraints on resource availability and by the switch from one resource base to another)
Siro Lombardini: ricordi di uno studente
No full textUn ricordo personale di Siro Lombardini come mio primo docente di Economia politic
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
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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