1,720,960 research outputs found
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
All banking crises are not created equal
Full text linkThis paper uses a multinomial logit model to examine the factors associated with the occurrence of both self-fulfilling and fundamental banking crises. We construct an index that differentiates between the two types of banking crises. By doing this, important characteristics particular to each type of run come to light which are not accounted for by standard binomial logit specifications. We find evidence indicating that the two types of crises are indeed different, and are explained by different variables. Self-fulfilling crises tend to occur when bank liabilities relative to reserves are high, when the financial system is liberalized, and for high levels of short-term debt relative to total debt. They are also associated with lending booms and government surpluses. In contrast, fundamental crises are linked to depreciations of the local currency, to financial liberalization and are negatively related to the country’s level of development and quality of institutions. Also, countries that experienced multiple crises are more likely to experience fundamental crises. Finally, by accounting for both types of crises, our results provide better support to existing self-fulfilling theoretical models.Este trabajo utiliza un modelo logit multinomial para examinar los factores asociados con el desencadenamiento de crisis bancarias tanto de tipo auto-generadas como las de tipo fundamental. Construimos un índice que diferencia entre los dos tipos de crisis bancarias. Al hacer esto, se manifiestan importantes características particulares a cada tipo de crisis, que no surgen cuando se utilizan especificaciones binomiales estándar. Encontramos evidencia de que los dos tipos de crisis efectivamente son diferentes, y son explicadas por distintas variables. Las crisis auto-generadas tienden a ocurrir cuando los pasivos bancarios relativos a las reservas son altos, cuando el sistema financiero es liberalizado, y para niveles altos de deuda de corto plazo relativa a deuda de largo plazo. También son asociadas a booms de crédito y superávits gubernamentales. En contraste, las crisis de tipo fundamental están relacionadas a depreciaciones, liberalización financiera, y relacionadas negativamente al nivel de desarrollo y la calidad de las instituciones. Economías que experimentaron crisis múltiples tienen mayor probabilidad de experimentar crisis fundamentales. Finalmente, al tomar en cuenta ambos tipos de crisis, nuestros resultados proveen apoyo a los modelos teóricos de las crisis auto-generadas
Sunspot and fundamental bank runs
Full text linkBanking crises, sunspots, fundamentals, narrow banking, suspension of convertibilityThis paper builds a banking environment where both fundamental runs (that stress macroeconomic variables, such as negative technology shocks, as the cause of bank runs) and sunspot runs (where self-fulfilling expectations generate equilibrium where agents panic and run on banks) coexist. A policy of narrow banking will prevent runs, but holding excessively high levels of liquidity will prevent socially productive investment opportunities, and thus will not be optimal. In addition, banks lose their role as intermediaries under this policy. A policy of suspension of convertibility may reduce welfare relative to the case where bank runs are allowed to take place, if the probability of sunspot runs is sufficiently low.Este artículo desarrolla un modelo de bancos donde crisis de tipo fundamental (que ponen énfasis sobre variables macroeconómicas como las causantes de crisis bancarias), y crisis de tipo sunspots (donde expectativas auto-generadas crean equilibrios donde los agentes entran en pánico y causan una corrida bancaria) coexisten. Una política de 100% de reservas previene ambos tipos de crisis, pero mantener reservas excesivas de liquidez impide inversiones socialmente productivas, y por ende no es óptimo. Al mismo tiempo, los bancos pierden su razón de ser bajo esta política. Una política de suspensión de convertibilidad puede reducir el bienestar social relativo al caso donde crisis bancarias son permitidas, si la probabilidad de corridas sunspot es suficientemente baja
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
Banks and capital flows
Full text linkFinancial Intermediation, capital flows, liquidity provision, banking crisesThis paper examines the effects that capital flows have on the financial system in the context of a demand deposit banking model. In this environment, an adverse selection problem arises where short-term capital has the incentive to enter the domestic banking system while long-term capital chooses to stay out. Then, short term capital flows limit the insurance function of banks. As inflows increase, a threshold is reached beyond which it becomes optimal to restrict these short-term capital inflows. In addition, when the quantity of inflows is unknown, large short-term capital flows will cause a banking crisis.Este artículo examina el efecto de los flujos de capital sobre el sistema financiero en el contexto de un modelo bancario a la Diamond-Dybvig. En este modelo surge un problema de selección adversa donde capitales de corto plazo tienen el incentivo de participar en el sistema bancario doméstico, mientras que capitales de largo plazo deciden no entrar. Luego, flujos de corto plazo limitan la función de seguro que cumplen los bancos. A medida que éstos aumentan, se llega a un umbral donde se vuelve óptimo restringir los flujos de capital de corto plazo. Además, cuando la cantidad de éstos es desconocida, cantidades grandes de flujos de capital causan crisis bancarias
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