928 resultados para sales pricing


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Contiene: Dissertacion historica II: que demuystra aver cursado el Patriarca Santo Domingo los estudios de artes, y de theologia en la ciudad de Palencia ... Obispado, y escritos de Idacio Galiciano el Historico ...

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Shopping agents are web-based applications that help consumers to find appropriate products in the context of e-commerce. In this paper we argue about the utility of advanced model-based techniques that recently have been proposed in the fields of Artificial Intelligence and Knowledge Engineering, in order to increase the level of support provided by this type of applications. We illustrate this approach with a virtual sales assistant that dynamically configures a product according to the needs and preferences of customers.

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This article presents an alternative approach to the decision-making process in transport strategy design. The study explores the possibility of integrating forecasting, assessment and optimization procedures in support of a decision-making process designed to reach the best achievable scenario through mobility policies. Long-term evaluation, as required by a dynamic system such as a city, is provided by a strategic Land-Use and Transport Interaction (LUTI) model. The social welfare achieved by implementing mobility LUTI model policies is measured through a cost-benefit analysis and maximized through an optimization process throughout the evaluation period. The method is tested by optimizing a pricing policy scheme in Madrid on a cordon toll in a context requiring system efficiency, social equity and environmental quality. The optimized scheme yields an appreciable increase in social surplus through a relatively low rate compared to other similar pricing toll schemes. The results highlight the different considerations regarding mobility impacts on the case study area, as well as the major contributors to social welfare surplus. This leads the authors to reconsider the cost-analysis approach, as defined in the study, as the best option for formulating sustainability measures.

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Contiene: Epitome de los motiuos juridicos que assistieron a la Curia Eclesiastica de Barcelona para resistirse a firmar la contencion que le propuso la Real Audiencia a instancia de la ... abadesa de S. Pedro de las Puellas de la misma ciudad

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Contiene : Dissertacion historica II: que demuestra aver cursado el Patriarca Santo Domingo los estudios de artes, y de theologia en la ciudad de Palencia ... Obispado, y escritos de Idacio Galiciano el Historico ... ; Dissertacion III : curiosa, sobre la patria, obispado, y escritos de Idacio Galiciano el Hitorico ..

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In some countries, such as Spain, it is very common that in the same corridor there are two roads with the same origin and destination but with some differences. The most important contrast is that one is a toll highway which offers a better quality than the parallel road in exchange of a price. The users decide if the price of the toll is worth to pay for the advantages offered. This problem is known as the untolled alternative and it has been largely studied in the academic literature, particularly related to economic efficiency and the optimal welfare toll. However, there is a gap in the literature academic regarding how it affects income distribution to the optimal toll. The main objective of the paper is to fill this gap. In this paper a theoretical model in order to obtain the optimal welfare price in a toll highway that competes for capturing the traffic with a conventional road is developed. This model is done for non-usual users who decide over the expectation of free flow conditions. This model is finally applied to the variables we want to focus on: average value of travel time (VTT) which is strongly related with income, dispersion of this VTT and traffic levels, from free flow to congestion. Derived from the results, we conclude that the higher the average VTT the higher the optimal price, the higher the dispersion of this VTT the lower the optimal price and finally, the more the traffic the higher the optimal toll.

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The paper identifies the potential spatial and social impacts of a proposed road-pricing scheme for different social groups in the Madrid Metropolitan Area (MMA). We appraise the accessibility of different districts within the MMA in terms of the actual and perceived cost of using the road infrastructure ‘before’ and ‘after’ implementation of the scheme. The appraisal framework was developed using quantitative survey data and qualitative focus group discussions with residents. We then simulated user behaviours (mode and route choice) based on the empirical evidence from a travel demand model for the MMA. The results from our simulation model demonstrated that implementation of the toll on the orbital metropolitan motorways (M40, M30, for example) decreases accessibility mostly in the districts where there are no viable public transport alternatives. Our specific study finding is that the economic burden of the road-pricing scheme particularly affects unskilled and lower income individuals living in the south of the MMA. The focus groups confirmed that low income drivers in the south part of the MMA would reduce their use of tolled roads and have to find new arrangements for these trips: i.e. switch to public transport, spend double the time travelling or stay at home. More generally, our research finds that European transport planners are still a long way from recognising the social equity implications of their policy decisions and that more thorough social appraisals are needed to avoid the social exclusion of low income populations when road tolling is proposed.

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Inscripción enla parte inferior derecha: "115"

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The paper explores the spatial and social impacts arising from implementation of a road-pricing scheme in the Madrid Metropolitan Area (MMA). Our analytical focus is on understanding the effects of the scheme on the transport accessibility of different social groups within the MMA. We define an evaluation framework to appraise the accessibility of different districts within the MMA in terms of the actual and perceived cost of using the road infrastructure "before" and "after" the implementation of the scheme. The framework was developed using quantitative survey data and qualitative data from focus group discussions with residents. We then simulated user behaviors (mode and route choice) based on the empirical evidence from a travel demand model for the MMA. The results from our simulation model demonstrated that implementation of the toll on the orbital metropolitan motorways (M40, M30, for example) decreases accessibility, mostly in the districts where there are no viable public transport alternatives. Our key finding is that the economic burden of the road-pricing scheme particularly affects unskilled and lower income individuals living in the south of the MMA. Consequently lower income people reduce their use of tolled roads and have to find new arrangements for these trips: i.e. switch to the public transport, spend double the time for their commuter trips or stay at home. The results of our research could be applicable more widely for anyone wishing to better understand the important relationship between increased transport cost and social equity, especially where there is an intention to introduce similar road-pricing schemes within the urban context.

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In some countries, such as Spain, it is very common that in the same corridor there are two roads with the same origin and destination but with some differences. The most important contrast is that one is a toll highway which offers a better quality than the parallel road in exchange of a price. The users decide if the price of the toll is worth paying for the advantages offered. This problem is known as the untolled alternative and it has been largely studied in the academic literature, particularly related to economic efficiency and the optimal welfare toll. However, there is a gap in the academic literature regarding how income distribution affects the optimal toll. The main objective of the paper is to fill this gap. In this paper a theoretical model is developed in order to obtain the optimal welfare price in a toll highway that competes with a conventional road for capturing the traffic. This model is done for non-usual users who decide over the expectation of free flow conditions. This model is finally applied to the variables we want to focus on: average value of travel time (VTT) which is strongly related with income, dispersion of this VTT and traffic levels, from free flow to congestion. Derived from the results, we conclude that the higher the average VTT the higher the optimal price, the higher the dispersion of this VTT the lower the optimal price and finally, the more the traffic the higher the optimal toll

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This article tests a multidimensional model of the marketing and sales organizational interface, based on a previous one tested for European companies (Homburg et al., 2008), in a specific taxonomical configuration: a brand focused professional multinational, in three successful Latin American branches. Factor reliability and hypotheses were studied through a confirmatory factor analysis. Results show the existence of a positive relationship between formalization, joint planning, teamwork, information sharing, trust and interface quality. Interface quality and business performance show also a positive relationship. This empirical study contributes to the knowledge of the organizational enhancement of interactions in emerging markets

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El deterioro del hormigón por ciclos de hielo-deshielo en presencia de sales fundentes es causa frecuente de problemas en los puentes e infraestructuras existentes en los países europeos. Los daños producidos por los ciclos de hielo-deshielo en el hormigón pueden ser internos, fundamentalmente la fisuración y/o externos como el descascarillamiento (desgaste superficial). La España peninsular presenta unas características geográficas y climáticas particulares. El 18% de la superficie tiene una altura superior a 1000mts y, además, la altura media geográfica con respecto al nivel del mar es de 660mts (siendo el segundo país más montañoso de toda Europa).Esto hace que la Red de Carreteras del Estado se vea afectada, durante determinados periodos, por fenómenos meteorológicos adversos, en particular por nevadas y heladas, que pueden comprometer las condiciones de vialidad para la circulación de vehículos. Por este motivo la Dirección General de Carreteras realiza trabajos anualmente (campañas de vialidad invernal, de 6 meses de duración) para el mantenimiento de la vialidad de las carreteras cuando éstas se ven afectadas por estos fenómenos. Existen protocolos y planes operativos que permiten sistematizar estos trabajos de mantenimiento que, además, se han intensificado en los últimos 10 años, y que se fundamentan en el empleo de sales fundentes, principalmente NaCl, con la misión de que no haya placas de hielo, ni nieve, en las carreteras. En zonas de fuerte oscilación térmica, que con frecuencia en España se localizan en la zona central del Pirineo, parte de la cornisa Cantábrica y Sistema Central, se producen importantes deterioros en las estructuras y paramentos de hormigón producidos por los ciclos de hielo- deshielo. Pero además el uso de fundentes de vialidad invernal acelera en gran medida la evolución de estos daños. Los tableros de hormigón de puentes de carretera de unos 40-50 años de antigüedad carecen, en general, de un sistema de impermeabilización, y están formados frecuentemente por un firme de mezcla asfáltica, una emulsión adherente y el hormigón de la losa. En la presente tesis se realiza una investigación que pretende reproducir en laboratorio los procesos que tienen lugar en el hormigón de tableros de puentes existentes de carreteras, de unos 40-50 años de antigüedad, que están expuestos durante largos periodos a sales fundentes, con objeto de facilitar la vialidad invernal, y a cambios drásticos de temperatura (hielo y deshielo). Por ello se realizaron cuatro campañas de investigación, teniendo en cuenta que, si bien nos basamos en la norma europea UNE-CEN/TS 12390-9 “Ensayos de hormigón endurecido. Resistencia al hielo-deshielo. Pérdida de masa”, se fabricaron probetas no estandarizadas para este ensayo, pensado en realidad para determinar la afección de los ciclos únicamente a la pérdida de masa. Las dimensiones de las probetas en nuestro caso fueron 150x300 mm, 75 x 150mm (cilíndricas normalizadas para roturas a compresión según la norma UNE-EN 12390-3) y 286x76x76 (prismáticas normalizadas para estudiar cambio de volumen según la norma ASTM C157), lo cual nos permitió realizar sobre las mismas probetas más ensayos, según se presentan en la tesis y, sobre todo, poder comparar los resultados con probetas extraídas de dimensiones similares en puentes existentes. En la primera campaña, por aplicación de la citada norma, se realizaron ciclos de H/D, con y sin contacto con sales de deshielo (NaCl en disolución del 3% según establece dicha norma). El hormigón fabricado en laboratorio, tratando de simular el de losas de tableros de puentes antiguos, presentó una fc de 22,6 MPa y relación agua/cemento de 0,65. Las probetas de hormigón fabricadas se sometieron a ciclos agresivos de hielo/deshielo (H/D), empleando una temperatura máxima de +20ºC y una temperatura mínima de -20ºC al objeto de poder determinar la sensibilidad de este ensayo tanto al tipo de hormigón elaborado como al tipo de probeta fabricado (cilíndrica y prismática). Esta campaña tuvo una segunda fase para profundizar más en el comportamiento de las probetas sometidas a ciclos H/D en presencia de sales. En la segunda campaña, realizada sobre probetas de hormigón fabricadas en laboratorio iguales a las anteriores, la temperaturas mínima del ensayo se subió a -14ºC, lo que nos permitió analizar el proceso de deterioro con más detalle. (Realizando una serie de ensayos de caracterización no destructivos y otros destructivos, y validando su aplicación a la detección de los deterioros causados tras los ensayos acelerados de hielodeshielo. También mediante aplicación de técnicas de microscopía electrónica.) La tercera campaña, se realizó sobre probetas de hormigón de laboratorio similares a las anteriores, fc de 29,3Mpa y relación a/c de 0,65, en las que se aplicó en una cara un revestimiento asfáltico de 2-4cms, según fueran prismáticas y cilíndricas respectivamente, compuesto por una mezcla asfáltica real (AC16), sobre una imprimación bituminosa. (Para simular el nivel de impermeabilización que produce un firme sobre el tablero de un puente) La cuarta campaña, se desarrolló tras una cuidadosa selección de dos puentes de hormigón de 40-50 años de antigüedad, expuestos y sensibles a deterioros de hielodeshielo, y en carreteras con aportación de fundentes. Una vez esto se extrajeron testigos de hormigón de zonas sanas (nervios del tablero), para realizar en laboratorio los mismos ensayos acelerados de hielo-deshielo y de caracterización, de la segunda campaña, basados en la misma norma. De los resultados obtenidos se concluye que cuando se emplean sales fundentes se acelera de forma significativa el deterioro, aumentando tanto el contenido de agua en los poros como el gradiente generado (mecanismo de deterioro físico). Las sales de deshielo aceleran claramente la aparición del daño, que se incrementa incluso en un factor de 5 según se constata en esta investigación para los hormigones ensayados. Pero además se produce un gradiente de cloruros que se ha detectado tanto en los hormigones diseñados en laboratorio como en los extraídos de puentes existentes. En casi todos los casos han aparecido cambios en la microestructura de la pasta de cemento (mecanismo de deterioro químico), confirmándose la formación de un compuesto en el gel CSH de la pasta de cemento, del tipo Ca2SiO3Cl2, que posiblemente está contribuyendo a la alteración de la pasta y a la aceleración de los daños en presencia de sales fundentes. Existe un periodo entre la aparición de fisuración y la pérdida de masa. Las fisuras progresan rápidamente desde la interfase de los áridos más pequeños y angulosos, facilitando así el deterioro del hormigón. Se puede deducir así que el tipo de árido afecta al deterioro. En el caso de los testigos con recubrimiento asfáltico, parece haberse demostrado que la precipitación de sales genera tensiones en las zonas de hormigón cercanas al recubrimiento, que terminan por fisurar el material. Y se constata que el mecanimo de deterioro químico, probablemente tenga más repercusión que el físico, por cuanto el recubrimiento asfáltico es capaz de retener suficiente agua, como para que el gradiente de contenido de agua en el hormigón sea mucho menor que sin el recubrimiento. Se constató, sin embargo, la importancia del gradiente de cloruros en el hormigon. Por lo que se deduce que si bien el recubrimiento asfáltico es ciertamente protector frente a los ciclos H/D, su protección disminuye en presencia de sales; es decir, los cloruros acabarán afectando al hormigón del tablero del puente. Finalmente, entre los hormigones recientes y los antiguos extraídos de puentes reales, se observa que existen diferencias significativas en cuanto a la resistencia a los ciclos H/D entre ellos. Los hormigones más recientes resultan, a igualdad de propiedades, más resistentes tanto a ciclos de H/D en agua como en sales. Posiblemente el hecho de que los hormigones de los puentes hayan estado expuestos a condiciones de temperaturas extremas durante largos periodos de tiempo les ha sensibilizado. La tesis realizada, junto con nuevos contrastes que se realicen en el futuro, nos permitirá implementar una metodología basada en la extracción de testigos de tableros de puente reales para someterlos a ensayos de hielo-deshielo, basados en la norma europea UNECEN/ TS 12390-9 aunque con probetas no normalizadas para el mismo, y, a su vez, realizar sobre estas probetas otros ensayos de caracterización destructivos, que posibilitarán evaluar los daños ocasionados por este fenómeno y su evolución temporal, para actuar consecuentemente priorizando intervenciones de impermeabilización y reparación en el parque de puentes de la RCE. Incluso será posible la elaboración de mapas de riesgo, en función de las zonas de climatología más desfavorable y de los tratamientos de vialidad invernal que se lleven a cabo. Concrete damage by freeze-thaw cycles in the presence of melting salts frequently causes problems on bridges and infrastructures in European countries. Damage caused by freeze-thaw cycles in the concrete can be internal, essentially cracking and / or external as flaking (surface weathering due to environmental action). The peninsular Spain presents specific climatic and geographical characteristics. 18% of the surface has a height greater than 1,000 m and the geographical average height from the sea level is 660 m (being the second most mountainous country in Europe). This makes the National Road Network affected during certain periods due to adverse weather, particularly snow and ice, which can compromise road conditions for vehicular traffic. For this reason the National Road Authority performs works annually (Winter Road Campaign, along 6 months) to maintain the viability of the roads when they are affected by these phenomena. There are protocols and operational plans that allow systematize these maintenance jobs, that also have intensified in the last 10 years, and which are based on the use of deicing salts, mainly NaCl, with the mission that no ice sheets, or snow appear on the roads. In areas of strong thermal cycling, which in Spain are located in the central area of the Pyrenees, part of the Cantabrian coast and Central System, significant deterioration take place in the structures and wall surfaces of concrete due to freeze-thaw. But also the use of deicing salts for winter maintenance greatly accelerated the development of such damages. The concrete decks for road bridges about 40-50 years old, lack generally a waterproofing system, and are often formed by a pavement of asphalt, an adhesive emulsion and concrete slab. In this thesis the research going on aims to reproduce in the laboratory the processes taking place in the concrete of an existing deck at road bridges, about 40-50 years old, they are exposed for long periods to icing salt, to be performed in order to facilitate winter maintenance, and drastic temperature changes (freezing and thawing). Therefore four campaigns of research were conducted, considering that while we rely on the European standard UNE-CEN/TS 12390-9 "Testing hardened concrete. Freezethaw resistance. Mass loss", nonstandard specimens were fabricated for this test, actually conceived to determine the affection of the cycles only to the mass loss. Dimensions of the samples were in our case 150x300 mm, 75 x 150mm (standard cylindrical specimens for compression fractures UNE-EN 12390-3) and 286x76x76 (standard prismatic specimens to study volume change ASTM C157), which allowed us to carry on same samples more trials, as presented in the thesis, and especially to compare the results with similar sized samples taken from real bridges. In the first campaign, by application of that European standard, freeze-thaw cycles, with and without contact with deicing salt (NaCl 3% solution in compliance with such standard) were performed. Concrete made in the laboratory, trying to simulate the old bridges, provided a compressive strength of 22.6 MPa and water/cement ratio of 0.65. In this activity, the concrete specimens produced were subjected to aggressive freeze/thaw using a maximum temperature of +20ºC and a minimum temperature of - 20°C in order to be able to determine the sensitivity of this test to the concrete and specimens fabricated. This campaign had a second phase to go deeper into the behavior of the specimens subjected to cycled freeze/thaw in the presence of salts. In the second campaign, conducted on similar concrete specimens manufactured in laboratory, temperatures of +20ºC and -14ºC were used in the tests, which allowed us to analyze the deterioration process in more detail (performing a series of non-destructive testing and other destructive characterization, validating its application to the detection of the damage caused after the accelerated freeze-thaw tests, and also by applying electron microscopy techniques). The third campaign was conducted on concrete specimens similar to the above manufactured in laboratory, both cylindrical and prismatic, which was applied on one side a 4 cm asphalt coating, consisting of a real asphalt mixture, on a bituminous primer (for simulate the level of waterproofing that produces a pavement on the bridge deck). The fourth campaign was developed after careful selection of two concrete bridges 40- 50 years old, exposed and sensitive to freeze-thaw damage, in roads with input of melting salts. Concrete cores were extracted from healthy areas, for the same accelerated laboratory freeze-thaw testing and characterization made for the second campaign, based on the same standard. From the results obtained it is concluded that when melting salts are employed deterioration accelerates significantly, thus increasing the water content in the pores, as the gradient. Besides, chloride gradient was detected both in the concrete designed in the laboratory and in the extracted in existing bridges. In all cases there have been changes in the microstructure of the cement paste, confirming the formation of a compound gel CSH of the cement paste, Ca2SiO3Cl2 type, which is possibly contributing to impair the cement paste and accelerating the damage in the presence of melting salts. The detailed study has demonstrated that the formation of new compounds can cause porosity at certain times of the cycles may decrease, paradoxically, as the new compound fills the pores, although this phenomenon does not stop the deterioration mechanism and impairments increase with the number of cycles. There is a period between the occurrence of cracking and mass loss. Cracks progress rapidly from the interface of the smallest and angular aggregate, thus facilitating the deterioration of concrete. It can be deduced so the aggregate type affects the deterioration. The presence of melting salts in the system clearly accelerates the onset of damage, which increases even by a factor of 5 as can be seen in this investigation for concrete tested. In the case of specimens with asphalt coating, it seems to have demonstrated that the precipitation of salts generate tensions in the areas close to the concrete coating that end up cracking the material. It follows that while the asphalt coating is certainly a protection against the freeze/thaw cycles, this protection decreases in the presence of salts; so the chlorides will finally affect the concrete bridge deck. Finally, among the recent concrete specimens and the old ones extracted from real bridges, it is observed that the mechanical strengths are very similar to each other, as well as the porosity values and the accumulation capacity after pore water saturation. However, there are significant differences in resistance to freeze/thaw cycles between them. More recent concrete are at equal properties more resistant both cycles freeze/thaw in water with or without salts. Possibly the fact that concrete bridges have been exposed to extreme temperatures for long periods of time has sensitized them. The study, along with new contrasts that occur in the future, allow us to implement a methodology based on the extraction of cores from the deck of real bridges for submission to freeze-thaw tests based on the European standard UNE-CEN/TS 12390-9 even with non-standard specimens for it, and in turn, performed on these samples other destructive characterization tests, which will enable to assess the damage caused by this phenomenon and its evolution, to act rightly prioritizing interventions improving the waterproofing and other repairs in the bridge stock of the National Road Network. It will even be possible to develop risk maps, depending on the worst weather areas and winter road treatments to be carried out.

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El consumo mundial, impulsor del desarrollo y crecimiento económico de los pueblos, no ha sido igual para todas las naciones, ya que sus efectos han sido diferentes para los ciudadanos de los países del Norte y los del Sur, principalmente por dos razones: una, porque han originado complejos y diferentes estilos de vida y aspiraciones, lo que ha originado grandes diferencias entre los individuos de unos y otros países, y, dos, por su falta de valores sociales y éticos. Ante esta situación, la sociedad en su conjunto debe tomar conciencia de este hecho, y a través de un consumo responsable y de un mayor conocimiento de las relaciones comerciales entre los pueblos, debe optar por consumir productos elaborados bajo criterios de justicia y equidad. Para ayudar a alcanzar estos objetivos de equidad, solidaridad, justicia y ética, nació el Comercio Justo, que, en el caso de España, llegó con veinte años de retraso en la década de los ochenta. Aunque a día de hoy sus ventas crecen a un buen ritmo, siguen siendo inferiores al resto de los países europeos, por cuatro razones: (1) el desconocimiento que la mayoría de los potenciales consumidores tienen de este movimiento social; (2) la dificultad de acceder a los productos que comercializan; (3) el poco impulso que se ofrece desde las Administraciones Públicas; y, (4) porque hay pocas investigaciones en las que se haya analizado el Comercio Justo desde la perspectiva de la demanda, lo que ha implicado que no haya un conocimiento profundo sobre los consumidores de este tipo de productos y sobre sus motivaciones de compra. En base a todo lo expuesto, el presente trabajo se concibe como un estudio exploratorio, que tiene como objetivo principal analizar el perfil de los consumidores y no consumidores de productos de Comercio Justo, sus motivaciones de compra y no compra, así como las variables que influyen en la intención de compra futura, tanto en el segmento de consumidores actuales, como en el segmento de no consumidores de este tipo de productos. Para la realización de este trabajo, se ha utilizado, por una parte, una metodología cualitativa, que ha permitido acceder a la información sobre las opiniones y actitudes que intervienen en los procesos de decisión de compra; y, por otra, una metodología cuantitativa, a través de una encuesta online dirigida a 6.500 individuos, que ha permitido tener información, a través de sendos análisis descriptivos univariante y bivariante, de los individuos encuestados sobre el objeto del estudio. Para validar los modelos y contrastar las hipótesis planteadas, se ha utilizado el análisis de fiabilidad y validación de las escalas de medición seleccionadas (Alpha de Cronbach); el análisis factorial exploratorio, para comprobar la dimensionalidad y validez convergente de las escalas de medida; el análisis factorial confirmatorio, para validar la idoneidad de los modelos de medida propuestos; la regresión logística, para comprobar la validez del modelo general de la probabilidad de la compra o no compra de productos de Comercio Justo; y la regresión lineal múltiple, para comprobar la validez de los modelos específicos de intención de compra futura en los segmentos de compradores y de no compradores. Para realizar todos estos análisis, se han utilizado las herramientas informáticas SPSS v21 y AMOS. Las principales conclusiones del trabajo son: (1) que se deben establecer unos criterios claros que definan quién es quién en el movimiento de Comercio Justo, sus fines, sus objetivos, los productos que comercializan, así como su funcionamiento y desarrollo en España; (2) que, a pesar de las grandes ventajas y posibilidades del Comercio Justo, hay una falta de demanda de estos productos por parte de los consumidores responsables, debido principalmente a la falta de información-comunicación sobre el propio movimiento, y, muy especialmente, a la falta de información sobre los productos, los canales de comercialización, las políticas de precios, las políticas de comunicación, etc., y a la necesidad de que estos productos estén accesibles en los lugares donde los consumidores hacen su compra habitual; y (3) que el Comercio Justo español debe afrontar una serie de desafíos, como son la coordinación entre las diferentes organizaciones que participan en su desarrollo; la sensibilización de los consumidores; la creación de una imagen de marca que defina de una manera clara y sencilla qué es el Comercio Justo; la orientación al cliente y no al producto; y extender la red de comercialización de productos de Comercio Justo a los canales donde los consumidores hacen su compra habitualmente. ABSTRACT Global consumption, the driver of economic growth and development of nations, is not the same for all countries, since its effects have been different on people coming from the North or the South. This is due mainly to two reasons: firstly, because they have developed complex and different lifestyles and aspirations, which have led to significant differences between individuals of one country and another and secondly, because they lack social and ethical values. Given this situation, society as a whole should be aware of this fact, and through responsible consumption and a greater knowledge of trade relations between countries, should opt for consuming products produced with criteria of justice and equity. Fair Trade began as a way to help reach these goals of equity, solidarity, justice and ethics. In the case of Spain it did not start until 20 years later, in the eighties. Although today sales of Fair Trade products are growing at a good rate, they are still below that of other European countries, for four reasons: (1) unawareness of this social movement; (2) the difficult access to these products; (3) insufficient government support; (4) the limited research carried out to analyse Fair Trade from the perspective of demand, resulting in a lack of knowledge about this type of consumer and their purchasing motivations. Based on the above, the present study is designed as an exploratory investigation, aimed at analyzing the profile of consumers and non-consumers of Fair Trade, their motivations for buying and not buying, as well as the variables which influence future purchase intention in both the current consumer segment, and the non-user segment of such products. To carry out this study we have used, on the one hand, a qualitative methodology, to obtain information about the views and attitudes involved in the purchase decision process; and on the other, a quantitative methodology, through an online survey of 6,500 individuals, which provided information through two separate univariate and bivariate descriptive analysis, of the individuals interviewed about the object of this study. To validate the models and contrast hypotheses, we have used the reliability analysis and validation of the selected measurement scales (Cronbach's Alpha); exploratory factor analysis to verify the dimensionality and convergent validity of the measurement scales; confirmatory factor analysis to validate the adequacy of the models of measurement proposed; logistic regression, to verify the validity of the general model of the probability of buying or not buying Fair Trade products; and multiple linear regression to test the validity of specific models in future purchase intention in the segments of buyers and non-buyers. To carry out these analyses, we used SPSS v21 software tools and AMOS. The principal conclusions of the investigation are: (1) the need to establish clear criteria which define who is who in the Fair Trade movement, its goals, objectives, the products they sell, as well as its operation and development in Spain; (2) that despite the great advantages and possibilities of Fair Trade, there is a lack of demand for these products by responsible consumers, mainly due to the lack of information-communication about the movement itself, and especially on the range of products, sales channels, pricing policies, communication policies, etc., and the need for these products to be available in places where consumers make their usual purchase; and (3) that Spanish Fair Trade must address a number of challenges such as: coordination between the different organizations involved in trade development; consumer awareness; creation of a brand image that defines in a clear and simple way what Fair Trade is; focus on the customer rather than the product; and expansion of the network of Fair Trade sales outlets to include the channels where consumers usually make their purchases.

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