4,215 research outputs found

    Risk Stories in the Media: Food Consumption, Risk and Anxiety

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    Although media-fueled food scares are often described as linked to consumers’ food anxieties, previous studies of food consumption have failed to explore fully how foodscare reports add to consumers’ anxieties. Using a relational theory of risk and a narrative approach, this article highlights how food-scare reports, through various risk accounts, create anxiety-inducing stories where consumers are appointed as handlers of conflicting food risks. Based on material collected from a 2009 Swedish food scare, the article suggests that food-scare reports construct multiple conflicting risks. The analysis also shows that news reports make consumers responsible for handling these risks and, in addition, involve conflicting instructions regarding how consumers should handle the risks described. The article concludes that it is the combination of conflicting risks and conflicting prescriptions for handling those risks that feeds consumers’ anxieties

    Infrastructuring alternative markets: Enabling local food exchange through patchworking

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    The aim of this paper is to advance our understanding of the complex material arrangements involved in the formation of AFNs by applying the concept of market infrastructure and turning our attention to the process of infrastructuring. Based on an ethnographic study of REKO rings, a network of local food markets, we show howdisparate elements, e.g. digital interfaces, parking locations, and Swish (an electronic payment system), are interconnected and configured to form the REKO ring market infrastructure patchwork – an infrastructure made by linking together previously unrelated elements and re-purposing them. We then demonstrate how this patchworkinfrastructure enables the formation of market actors, coordination of the market actors’ activities, and the qualification and valuation of foods, thereby making the exchange of alternative food possible. Our analysis of infrastructurepatchworking illustrates a different type of infrastructure-making resulting in a temporary and fragile infrastructure which, despite its instability, enables exchange. Drawing on this analysis we argue that the potential of AFNs to take form and impact contemporary modes of food provisioning cannot be understood without exploring the process of infrastructuring

    A Flexible Multitask Summarizer for Documents from Different Media, Domain and Language

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    Automatic Summarization is probably crucial with the increase of document generation. Particularly when retrieving, managing and processing information have become decisive tasks. However, one should not expect perfect systems able to substitute human sumaries. The automatic sumarization process strongly depends not only on the characteristics of the documents, but also on user different needs.Thus, several aspects have to be taken into account when designing an information system for summarizing, because, depending on the characteristics of the input documents and the desired results, several techniques can be aplied. In order to suport this process, the final goal of the thesis is to provide a flexible multitask summarizer architecture. This goal is decomposed in three main research purposes. First, to study the process of porting systems to different summarization tasks, processing documents in different lenguages, domains or media with the aim of designing a generic architecture to permit the easy addition of new tasks by reusing existents tools. Second, the developes prototypes for some tasks involving aspects related with the lenguage, the media and the domain of the document or documents to be summarized as well as aspects related with the summary content: generic, novelly summaries, or summaries that give answer to a specific user need. Third, to create an evaluation framework to analyze the performance of several approaches in written news and scientific oral presentation domains, focusing mainly in its intrinsic evaluation.El resumen automático probablemente sea crucial en un momento en que la gran cantidad de documentos generados diariamente hace que recuperar, tratar y asimilar la información que contienen se haya convertido en una ardua y a su vez decisiva tarea. A pesar de ello, no podemos esperar que los resúmenes producidos de forma automática vayan a ser capaces de sustituir a los humanos. El proceso de resumen automático no sólo depende de las características propias de los documentos a ser resumidos, sino que es fuertemente dependiente de las necesidades específicas de los usuarios. Por ello, el diseño de un sistema de información para resumen conlleva tener en cuenta varios aspectos. En función de las características de los documentos de entrada y de los resultados deseados es posible aplicar distintas técnicas. Por esta razón surge la necesidad de diseñar una arquitectura flexible que permita la implementación de múltiples tareas de resumen. Este es el objetivo final de la tesis que presento dividido en tres subtemas de investigación. En primer lugar, estudiar el proceso de adaptabilidad de sistemas a diferentes tareas de resumen, como son procesar documentos producidos en diferentes lenguas, dominios y medios (sonido y texto), con la voluntad de diseñar una arquitectura genérica que permita la fácil incorporación de nuevas tareas a través de reutilizar herramientas existentes. En segundo lugar, desarrollar prototipos para distintas tareas, teniendo en cuenta aspectos relacionados con la lengua, el dominio y el medio del documento o conjunto de documentos que requieren ser resumidos, así como aspectos relacionados con el contenido final del resumen: genérico, novedad o resumen que de respuesta a una necesidad especifica. En tercer lugar, crear un marco de evaluación que permita analizar la competencia intrínseca de distintos prototipos al resumir noticias escritas y presentaciones científicas orales

    Who takes the cake Effects of ECB monetary policy across income classes

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    This work provides evidence on the effects of monetary policy on the income class structure via stimulating economic activity and employment in Eurozone countries over the period 2007Q32016Q1. Based on European Union Statistics on Income and Living Conditions (EU-SILC) data, we compute the share of the market income perceived by each income class (lower, lower-middle, upper-middle, and upper) for the states that originated the Economic and Monetary Union (EMU11). We analyse the impact of monetary policy impulses under a Bayesian Vector Autoregressive approach and find that a monetary easing shock involving a decrease in nominal interest rates tends to increase the income share of middle classes at the expense of a smaller income share of the upper class, while, the lower class is not significantly affected. Our findings highlight the identified effects are mostly triggered by short-term interest rates cuts as long as they tend to vanish as the monetary policy proxy is located further in the yield curve. This suggests that the egalitarian impacts of monetary policy on market income distribution are to a lesser extent driven by decisions modifying longer-term interest rates.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Monetary policy and middle class

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    The global financial crisis of 2007-2008 and the subsequent period of financial and economic instability have forced central banks to implement ultra-loose monetary policies for combating the downturn and the stagnation of inflation, which has led the question about how monetary policy might affect inequality to the foreground of economic and political debates. This paper attepts to evaluate how monetary policy implemented in the Euro area (EURO-11) has affected two aspects of income distribution, namely, the size of middle class dimension and its mobility. To this end, an econometric model is estimated based on data from 2003 to 2015 for the set of countries belonging to the Economic and Monetary Union that originated the Union (EMU1999). We apply the vector autoregressive (VAR) methodology to country-level panel data as a first approach of the short-term dynamics among the considered variables, where the impulse-response functions have been orthogonalized due to the existing serial correlation between the unobserved terms. Subsequently, this analysis is complimented with a more robust one. Since our variables are non-stationary but indeed co-integrated, the vector error correction model (VECM) allows us to consider the medium-term relationship between monetary policy and income inequality via the stimulus of the economic activity.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    How does monetary policy affect the income class structure? Evidence from the Eurozone.

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    This work provides evidence on the potential effects of monetary policy on the income class structure via stimulating economic activity and employment in the Eurozone countries over the period 2007Q3-2016Q1. Based on European Union Statistics on Income and Living Conditions (EU-SILC) data, we compute the size of income classes (lower, lower-middle, upper-middle, and upper) for the stats that originated the Economic and Monetary Union (EMU-11) and analyse the impact of monetary policy impulses under a Bayesian Vector Autoregressive approach. We focus on the earnings heterogeneity and the income composition channel and find that a monetary easing shock involving a decrease short-term nominal interest rate has diverse effects on the different income classes, which seems to have led to a more equal income distribution. As theoretically argued by these monetary policy transmission mechanisms, our results confirm the GDP growth and the decrease in unemployment caused by the monetary policies implemented by the European Central Bank since the onset of the financial crisis have had a positive effect for those households located at the bottom of the income-class structure as well as for the middle class.Campus de Excelencia Internacional Andalucía Tec

    An empirical study of power consumption of Web-based communications in mobile phones

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    Currently, mobile devices are the most popular pervasive computing device, and they are becoming the primer way for Web access. Energy is a critical resource in such pervasive computing devices, being network communication one of the primary energy consuming operations in mobile apps. Indeed, web-based communication is the most used, but also energy demanding. So, mobile web developers should be aware of how much energy consumes the different web-based communication alternatives. The goal of this paper is to measure and compare the energy consumption of three asynchronous Web-based methods in mobile devices. Our experiments consider three different Web applications models that allow a web server to push data to a browser: Polling, Long Polling and WebSockets. The obtained results are analyzed to get more accurate understanding of the impact in energy consumption of a mobile browser for each of these three methods. The utility of these experiments is to show developers what are the factors that influence the energy consumption when different web-based asynchronous communication is used. With this information mobile web developers could reduce the power consumption of web applications on mobile devices, by selecting the most appropriate method for asynchronous server communication.MUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Entrepreneurship, principios de un largo recorrido

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    La evolución del Entrepreneurship como área de investigación ha sido objeto de varios estudios desde disciplinas como la economía, la gestión empresarial o la historia de la ciencia, dada su juventud y la polémica generada en torno a su definición. El presente trabajo se propone realizar una breve revisión de la literatura creada alrededor de este concepto, desde la perspectiva de organización de empresas, destacando el camino hacia lo que hoy en día se ha convertido en su paradigma dominante: el proceso de descubrimiento, evaluación y explotación de oportunidades
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