1,720,986 research outputs found
Banca y asistentes digitales : una mirada al futuro
Get PDFFil: Fuentes, Matías Gabriel. Universidad de San Andrés. Escuela de Negocios; Argentina
Stable Matching with Double Infinity of Workers and Firms
No full textIn this paper we analyze the existence of stable matchings in a two-sided large market in which workers are assigned to firms. The market has a continuum of workers while the set of firms is countably infinite. We show that, under certain reasonable assumptions on the preference correspondences, stable matchings not only exist but are also Pareto optimal.Fil: Fuentes, Matías. Universidad Nacional de San Martín; ArgentinaFil: Tohmé, Fernando Abel. Universidad Nacional del Sur; Argentin
Stable matching with double infinity of workers and firms
Get PDFIn this paper we analyze the existence of stable matchings in a two- sided large market in which workers are assigned to firms. The market has a continuum of workers while the set of firms is countably infinite. We show that, under certain reasonable assumptions on the preference correspondences, stable matchings not only exist but are also Pareto optimal.Fil: Fuentes, Matías Nicolás. Universidad Nacional de San Martín. Centro de Investigación en Economía Teórica y Matemática Aplicada (CIETyMA); San Martín, Buenos Aires, Argentina.Fil: Tohmé, Fernando. Universidad Nacional del Sur. Departamento de Economía; Bahía Blanca, Buenos Aires, Argentina
Marginal pricing and marginal cost pricing equilibria in economies with externalities and infinitely many commodities.
Get PDFThis paper considers a general equilibrium model of an economy in which some firms may exhibit various types of non-convexities in production, there are external effects among agents and the commodity space is infinite dimensional. The consumption sets, the preferences of the consumers, and the production possibilities are represented by correspondences in order to take into account the external effects. The firms are instructed to follow the marginal pricing rule from which we obtain an existence theorem. Then, the existence of a marginal cost pricing equilibrium is proved by adding additional assumptions. The simultaneous presence of externalities and infinitely many commodities are sources of technical difficulties when attempting to generalize previous existence results in the literature.Fil: Fuentes, Matías Nicolás. Universidad Nacional de San Martín. Centro de Investigación en Economía Teórica y Matemática Aplicada (CIETyMA); San Martín, Buenos Aires, Argentin
Existence of equilibria in economies with externalities and non-convexities in an infinite dimensional commodity space
No full textWe prove an equilibrium existence theorem for economies with externalities, general types of non-convexities in the production sector, and infinitely many commodities. The consumption sets, the preferences of the consumers and the production possibilities are represented by set-valued mappings to take into account the external effects. The firms set their prices according to general pricing rules which are supposed to have bounded losses and may depend upon the actions of the other economic agents. The commodity space is L (M, , ) ¥ M μ , the space of essentially bounded, real-valued, measurable functions on (M,M,μ). As for our existence result, we consider the framework of Bewley (1972). However, there are four major problems in using this technique. To overcome two of these difficulties, we impose strong lower hemi-continuity assumptions upon the economies. The remaining problems are removed when finite economies are large enough. Our model encompasses previous works on the existence of general equilibria when there are externalities and non-convexities but the commodity space is finite dimensional and those on general equilibria in non-convex economies with infinitely many commodities when no external effect is taken into account.Fil: Fuentes, Matías Nicolás, Universidad Nacional de San Martín. Centro de Investigación en Economía Teórica y Matemática Aplicada (CIETyMA); Buenos Aires, Argentin
Relevamiento, oportunidades de mejora y creación de planes preventivos para el área de mantenimiento de la UNNOBA
Get PDFEl presente trabajo se enmarca en un contexto general en el cual las universidades nacionales han enfrentado una disminución en los recursos presupuestarios. En este escenario, la universidad ha decidido aprovechar una de sus fortalezas: la disponibilidad de estudiantes avanzados que buscan realizar prácticas profesionales para adquirir experiencia en el campo laboral.
Mantener la certificación de la norma ISO 14001 ha sido un desafío en estas circunstancias, lo que ha llevado a la necesidad de explotar recursos internos que no habían sido plenamente aprovechados hasta el momento. Uno de los puntos que exige la norma es el cumplimiento de los requerimientos legales específicos de cada organización. Entre ellos, para la universidad, destaca el decreto 31/2023, que establece la obligación de "realizar un registro de mantenimiento preventivo y correctivo en equipos e instalaciones que consumen energía eléctrica, agua y gas". La necesidad de cumplir con este decreto, junto con la implementación de un plan de mantenimiento preventivo en la universidad, fue lo que motivó el inicio de estas prácticas profesionales supervisadas (PPS).
El trabajo realizado incluye un diagnóstico del estado actual del departamento de mantenimiento, con el objetivo de evaluar tanto la condición de las instalaciones como los procesos de gestión. Los objetivos principales son identificar y clasificar las tareas recurrentes, y proponer un plan de acción que permita mejorar la eficiencia operativa mediante la implementación de medidas preventivas.Fil: Martí Fuentes, Matías Ezequiel. Universidad Nacional del Noroeste de a Provincia de Buenos Aires. Escuela de Tecnología; Argentina.Ingeniería Mecánic
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
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