The European Social Survey. Methodological aspects

From a scientific point of view, surveys are undoubtedly a valuable tool for the knowledge of the social and political reality. They are widely used in the social sciences research. However, the researcher's task is often disturbed by a series of deficiencies related to some technical aspects that make difficult both the inference and the comparison. The main aim of the present paper is to report and justify the European Social Survey's technical specifications addressed to avoid and/or minimize such deficiencies. The article also gives a characterization of the non-respondents in Spain obtained from the analysis of the 2002 fieldwork data file.

Hybrid consumption paths in the attribute space: A model and application with scanner data

This paper presents and estimates a dynamic choice model in the attribute space considering rational consumers. In light of the evidence of several state-dependence patterns, the standard attribute-based model is extended by considering a general utility function where pure inertia and pure variety-seeking behaviors can be explained in the model as particular linear cases. The dynamics of the model are fully characterized by standard dynamic programming techniques. The model presents a stationary consumption pattern that can be inertial, where the consumer only buys one product, or a variety-seeking one, where the consumer shifts among varied products.We run some simulations to analyze the consumption paths out of the steady state. Underthe hybrid utility assumption, the consumer behaves inertially among the unfamiliar brandsfor several periods, eventually switching to a variety-seeking behavior when the stationary levels are approached. An empirical analysis is run using scanner databases for three different product categories: fabric softener, saltine cracker, and catsup. Non-linear specifications provide the best fit of the data, as hybrid functional forms are found in all the product categories for most attributes and segments. These results reveal the statistical superiority of the non-linear structure and confirm the gradual trend to seek variety as the level of familiarity with the purchased items increases.

Estimating multi-country VAR models

This paper describes a methodology to estimate the coefficients, to test specification hypothesesand to conduct policy exercises in multi-country VAR models with cross unit interdependencies, unit specific dynamics and time variations in the coefficients. The framework of analysis is Bayesian: a prior flexibly reduces the dimensionality of the model and puts structure on the time variations; MCMC methods are used to obtain posterior distributions; and marginal likelihoods to check the fit of various specifications. Impulse responses and conditional forecasts are obtained with the output of MCMC routine. The transmission of certain shocks across countries is analyzed.

How important are tobacco prices in the propensity to start and quit smoking? An analysis of smoking histories from the Spanish National Health Survey

This paper analyses the effect of tobacco prices on the propensity tostart and quit smoking using a pool of the 1993, 1995 and 1997 editionsof the Spanish National Health Surveys. The estimates for severalparametric models of the hazard rate for starting and quitting suggestthat i) The public health measures applied as of 1992 have had asignificative effect on both reducing the hazard of starting andincreasing the hazard of quitting, ii) Prices have a very weak effect onthe hazard of starting in the male population and no significant effectin the female population, iii) The price floor of cigarrettes, proxiedby the average price of a pack of black cigarrettes, has a significanteffect on the quitting hazard which is robust across specifications andapplies to both men and women. The implied price elasticity of the timeup to quitting is situated around -1.4.

Government consumption and private consumption correlations

This paper examines whether the introduction of government consumptionexpenditure in a standard one good model of the international real businesscycle is sufficient to reconcile the theory with the existing pattern ofinternational consumption and output correlations. I calibrate the model totwo different pairs of countries and generate the simulated distribution ofconsumption and output correlations implied by several specifications of themodel. It is shown that the model can account for existing internationalconsumption correlations only under very specific assumptions about the sizeof effect of government expenditure on agents' utility or the variabilityof government expenditure shocks. Crucial parameters are identified and thesensitivity of the results discussed.

TV or not TV? Subtitling and English skills

We study the influence of television translation techniques on the quality of the English spoken across the EU and OCDE. We identify a large positive effect for subtitled original version as opposed to dubbed television, which loosely corresponds to between four and twenty years of compulsory English education at school. We also show that the importance of subtitled television is robust to a wide array of specifications.We then find that subtitling and better English skills have an influence on high-tech exports, international student mobility, and other economic and social outcomes.

Propuesta creativa para la nueva línea de vinos ENJOYME

El projecte presentat en aquest document formal conté la proposta per a la nova marca de vins Enjoyme, el projecte consta de la creació de diverses peces gràfiques per tal de construir una proposta global per a la marca. L’encàrrec per part del client consta de: construcció de marca Enjoyme (logotip), lloc web enfocat a la venda on line, packaging del producte, OPI i revista digital. Cadascuna d’aquestes peces es troba explicada detalladament dins d’aquest document amb les seves respectives especificacions creatives, tècniques, estratègiques i econòmiques. El concepte creatiu d’aquesta campanya “Cultiva els teus sentits” està reflectit en cadascuna de les peces, formant un equilibri en conjunt. La idea central de la campanya s’enfoca a transmetre als clients totes les sensacions que li pot donar la natura en ser humà, tenint en compte l’orgànic i biodinàmic com a part fonamental del projecte, ja que aquest producte elaborat amb aquest tipus d’agricultura.

Programari per a la gestió de restaurants

Aquest projecte permetrà gestionar totes les àrees d'un restaurant, des del servei als clients fins als stocks i comandes.

Programa de gestió per la Pastisseria Mas

En els últims anys, el món de la informàtica ha evolucionat d'una manera inimaginable, tan a nivell de Hardware com de Software. Aquesta evolució ha donat lloc a la creació de moltes empreses dedicades a la programació, on una de les seves principals feines ha estat la realització de programes de gestió d'empreses. Moltes vegades, però, els programes estàndards no poden satisfer el total de les necessitats dels clients, sinó algunes d’aquestes i realitzar un programa personalitzat té un cost elevat. En el cas de la Pastisseria Mas de Navàs, una empresa familiar, per poder realitzar les tasques administratives utilitzen fulls de càlcul, concretament el Microsoft Excel, que permet portar els comptes d'una manera més o menys senzilla, ja que només són necessàries unes nocions bàsiques d'informàtica. El mateix passa amb les dades dels proveïdors, que les guarden en una Base de Dades del tipus Microsoft Access. Una altra de les mancances és el tema dels encàrrecs que es fa de manera manual. Per tant, l’objectiu d’aquest projecte, és realitzar un programa que els hi faciliti la seva activitat. Aquest programa els permetrà gestionar les dades que utilitzen, com la informació sobre els clients, personal, comandes... També s’ha desenvolupat una web que permet obtenir informació sobre les comandes que s’han realitzat. Aquesta aplicació està dissenyada per funcionar en l’entorn Windows XP i s’ha desenvolupat amb el compilador de CodeGear Rad Studio, concretament el C++ Builder 2009. A nivell de base de dades, he utilitzat MySQL i en el cas de la pàgina web, PHP i lamateixa base de dades. L’anàlisi i el disseny ha estat fet en UML.

Transformation rules form OntoProcED to OntoOKI

This file contains the transformtion rules in SWRL to translate formal specifications of two lower ontology levels (patterns and organization) to the upper level (implementation according to the OKI specification).

Application of a support system to the design of wastewater treatment plants

This paper presents a case study that explores the advantages that can be derived from the use of a design support system during the design of wastewater treatment plants (WWTP). With this objective in mind a simplified but plausible WWTP design case study has been generated with KBDS, a computer-based support system that maintains a historical record of the design process. The study shows how, by employing such a historical record, it is possible to: (1) rank different design proposals responding to a design problem; (2) study the influence of changing the weight of the arguments used in the selection of the most adequate proposal; (3) take advantage of keywords to assist the designer in the search of specific items within the historical records; (4) evaluate automatically thecompliance of alternative design proposals with respect to the design objectives; (5) verify the validity of previous decisions after the modification of the current constraints or specifications; (6) re-use the design records when upgrading an existing WWTP or when designing similar facilities; (7) generate documentation of the decision making process; and (8) associate a variety of documents as annotations to any component in the design history. The paper also shows one possible future role of design support systems as they outgrow their current reactive role as repositories of historical information and start to proactively support the generation of new knowledge during the design process

The empirics of spatial competition: evidence from European regions

The New Economic Geography literature allows detailed analysis of the factors that determine the location decisions of firms in integrated markets. However, the competitive process is modelled in a rather rudimentary way, and the empirical evidence has usually been obtained from reduced-form econometric specifications. This study describes a structural model that takes into account strategic interactions between firms. We investigate the relationship between the degree of perceived competition ¿ not only from local firms but from firms in other regions ¿ and geographic concentration. The preliminary results indicate that, in aggregate terms, local firms present stronger competition than firms in other regions. Moreover, it is confirmed that greater geographical concentration of production reduces market power, due to the intensification of local competition; however, its impact on production costs is unclear.

The empirics of spatial competition: evidence from European regions

The New Economic Geography literature allows detailed analysis of the factors that determine the location decisions of firms in integrated markets. However, the competitive process is modelled in a rather rudimentary way, and the empirical evidence has usually been obtained from reduced-form econometric specifications. This study describes a structural model that takes into account strategic interactions between firms. We investigate the relationship between the degree of perceived competition ¿ not only from local firms but from firms in other regions ¿ and geographic concentration. The preliminary results indicate that, in aggregate terms, local firms present stronger competition than firms in other regions. Moreover, it is confirmed that greater geographical concentration of production reduces market power, due to the intensification of local competition; however, its impact on production costs is unclear.

Full complex Fresnel holograms displayed on liquid cristal displays

We propose a method to display full complex Fresnel holograms by adding the information displayed on two analogue ferroelectric liquid crystal spatial light modulators. One of them works in real-only configuration and the other in imaginary-only mode. The Fresnel holograms are computed by backpropagating an object at a selected distance with the Fresnel transform. Then, displaying the real and imaginary parts on each panel, the object is reconstructed at that distance from the modulators by simple propagation of light. We present simulation results taking into account the specifications of the modulators as well as optical results. We have also studied the quality of reconstructions using only real, imaginary, amplitude or phase information. Although the real and imaginary reconstructions look acceptable for certain distances, full complex reconstruction is always better and is required when arbitrary distances are used.

Human capital spillovers, productivity and regional convergence in Spain

This paper analyses the differential impact of human capital, in terms of different levels of schooling, on regional productivity and convergence. The potential existence of geographical spillovers of human capital is also considered by applying spatial panel data techniques. The empirical analysis of Spanish provinces between 1980 and 2007 confirms the positive impact of human capital on regional productivity and convergence, but reveals no evidence of any positive geographical spillovers of human capital. In fact, in some specifications the spatial lag presented by tertiary studies has a negative effect on the variables under consideration.