Suchergebnisse

[EN] Cities and civil society organizations arround the World (Barcelona, Milan, Paris, Madrid, London, Boston) work together to enhance the collaboration and to create a coordinated urban policy on sustainable food systems to deliver healthy and accessible food to all, and peri-urban areas are considered priorities as opportunity to actions related to it. In this article, we pay attention on the debate arround urban growth strategies versus conservation-preservation of farmland in peri urban areas. We use the multifunctionality approaches to analyze the agricultural systems and propose multi-criteria analysis techniques in the development of territorial planning processes by stakeholders and applying contemporary tools and techniques. Our study is focused on the Huerta de Valencia, a peri-urban agricultural system around the city of Valencia (Spain). This is an agricultural system of great wealth and variety of resources, recognized by the European Environment Agency. The differences in perceptions between stakeholder grups result in different future vision for this agricultural system, with implications in the process to design rural development measures and agro-environmental to breach this gap. ; The authors acknowledge the support received from the Spanish Ministry of Economy and Competitiveness through the research project Multiple Criteria and Group Decision Making integrated into Sustainable Management, Ref. ECO2011-27369. The translation of this paper was funded by the Universitat Politecnica de Valencia, Spain and the Ministerio de Ciencia y Tecnologia. ; Marqués Pérez, I.; Segura García Del Río, B. (2018). Integrating social preferences analysis for multifunctional peri-urban farming in planning. An application by multi-criteria analysis techniques and stakeholders. Agroecology and Sustainable Food Systems. 42(9):1029-1057. https://doi.org/10.1080/21683565.2018.1468379 ; S ; 1029 ; 1057 ; 42 ; 9

[EN] The debate on the multifunctionality of agriculture and its connections with territorial policies are the basis of the most appropriate approach to legitimize public interventions in the agricultural sector. The main obstacle of this public intervention is to know the goods and services provided by agricultural systems and elicitation of the social preferences for them. We created a descriptive approach for the multifunctionality of agricultural systems that is based on the review of the scientific literature focused on multifunctionality and the goods and services of agricultural systems. The review shows a large variety of activities and approaches, which can be grouped by their economic dimension (E), social dimension (S) and environmental dimension (EN). Multicriteria techniques, such as the Analytic Hierarchy Process (AHP), can help elicit the priorities and the relative importance of different functions attributed by the society as a whole. The authorities can take into account these results to inform and support their political decisions. This paper describes a methodological approach to determine the Social Welfare Function (SWF) by using AHP. The proposed methodology is applied to the Huerta de Valencia, a rich peri-urban agricultural system with a variety of resources, around which there is an open political-institutional debate to define a protection scheme. The results are very interesting and useful to enrich this debate. ; [ES] El debate en torno a la multifuncionalidad de los sistemas agrarios, las reformulaciones más recientes del concepto y sus conexiones con las políticas territoriales, así como los corolarios más interesantes que resultan del mismo, constituyen la base de un enfoque muy apropiado para legitimar la intervención pública, en aras de la conservación de sistemas agrarios a los que se reconoce la provisión de ciertos bienes y servicios. Sin embargo, la dificultad de esta intervención pública tiene su mayor obstáculo en la determinación de las preferencias de la población por ...

[EN] Drovers' roads have been a key part of transhumant pastoralism for decades, being the routes on which to drive livestock, and it is for this reason that they are protected by Spanish law, specifically Law 3/1995, by which they were declared public goods. At the same time, their particular nature also means that they also possess characteristics which are typical of other types of public goods; therefore, in order to estimate their value, market-based techniques cannot be used. This study centres on a project for the restoration for recreational purposes of the Cañada Real del Reino de Valencia, a drovers' road in the Valencia region of Spain. In order to establish its economic value, the contingent valuation method has been used: this is the most commonly used technique for the valuation of non-market goods and it is widely attested in the economic literature, being used in a large number of different settings. Assuming a useful life of 25 years and a social discount rate of 5%, the value of the Cañada Real del Reino de Valencia has been estimated at €441.82 million, indicating the value which society places on the drovers' road. This estimation may assist in improving the efficiency of public spending policies. ; The translation of this paper was funded by the Universitat Politècnica de València, Spain. ; Guaita Pradas, I.; Segura García Del Río, B. (2014). Drovers Roads as Environmental Assets: Use Value for Recreational Purposes of the Cañada Real del Reino de Valencia. Journal of Environmental Protection. 5(16):1495-1508. doi:10.4236/jep.2014.516142 ; S ; 1495 ; 1508 ; 5 ; 16

Este trabajo presenta un modelo para el análisis y optimización del impacto espacial de las políticas urbanísticas de los gobiernos locales en materia de regeneración urbana y rehabilitación de zonas históricas degradadas. Partiendo del volumen de inversión y de la localización de las intervenciones públicas, se propone un índice de impacto de las mismas. La distribución espacial de estos índices de impacto en la zona de influencia de la intervención servirán de base para el análisis; así, fijándonos unos objetivos concretos del centro decisor sobre la homogeneidad de esta distribución, planteamos un modelo que de acuerdo al principio de equidad territorial nos permite asignar el presupuesto disponible entre las distintas localizaciones fijadas a priori. Mediante la comparación de la distribución espacial de los índices de impacto obtenidos podremos obtener una medida de evaluación del proceso de intervención y del impacto del mismo. ; This work provides an analysis and an optimization model of the spatial impact for the urban policies of local governments in terms of urban regeneration and rehabilitation of degraded historic areas. From the amount invested and state intervention locations, an impact index is put forward. The spatial distribution of these impact indexes in the interventions' area of influence will be the basis for the analysis; hence, by setting some specific objectives of the decision agent about this distribution homogeneity, we propose a model which will allow us to allocate the budget available among the different locations fixed a priori. By means of a comparison between the spatial distributions of impact indexes obtained in both situations, a measure of the intervention process and its impact can be obtained.

[EN] National and international policies have promoted quinoa consumption, influencing the expansion of the crop, and generating changes in land use. In this article, we analyzed the evolution of quinoa cultivation in Peru both at the national and departmental levels. Time series analysis vas used to. Between 1951 and 2019, the evolution of the quinoa-harvested areas in Peru has gone through various stages, first in regression until 1990, and then it has experienced a growth rate of 10%. Puno is still by far the department where the crop is most widespread. Taking into account the geographical and technological conditions, this highland area is less likely to maintain the rate of expansion than the Peruvian coast, which will imply great challenges for Andean farmers who have maintained the traditional crop throughout the period ; Huillca, J.; Segura García Del Río, B.; Álvarez, A. (2021). Quinoa Expansion in Peruvian Departments and Land Use Change before the Health Crisis. Agricultural Sciences. 12(8):827-843. https://doi.org/10.4236/as.2021.128053 ; S ; 827 ; 843 ; 12 ; 8

[ES] En el presente artículo se analizan los efectos que los programas de regeneración urbana, principalmente financiados con fondos públicos, tienen sobre el mercado inmobiliario en la zona de intervención. Estudiamos la evolución temporal de los precios y proponemos un modelo de precios hedónicos que relaciona las inversiones en las distintas intervenciones y los valores de mercado observados. Los resultados indican que los valores obtenidos por el método de los precios hedónicos son bastante representativos de los valores observados en el mercado de los bienes inmuebles. Al aislar el impacto de estas intervenciones en el valor de los bienes inmuebles de la zona de influencia, tenemos una estimación del beneficio social derivado de la intervención, que puede ser empleado como medida de la eficiencia de la rehabilitación pública llevada a cabo en los centros históricos. ; Cervelló Royo, RE.; Segura García Del Río, B. (2011). Efecto de las intervenciones públicas en regeneración urbana: un modelo para evaluar su eficiencia. CIRIEC-España. Revista de Economía Pública, Social y Cooperativa. Abril(70):33-54. http://hdl.handle.net/10251/30880 ; S ; 33 ; 54 ; Abril ; 70

La revista Investigaciones Regionales forma parte del conjunto de publicaciones de libre acceso (Open Access Journals) por lo que el acceso a sus contenidos no conlleva ningún recargo para sus lectores o sus instituciones. Los lectores ''tienen el derecho a leer, descargar, copiar, distribuir, imprimir, buscar o enlazar los textos completos de sus contenidos'', según la definición de la Iniciativa por el Libre Acceso de Budapest (BOAI) ; [ES] Este trabajo presenta un modelo para el análisis y optimización del impacto espacial de las políticas urbanísticas de los gobiernos locales en materia de regeneración urbana y rehabilitación de zonas históricas degradadas. Partiendo del volumen de inversión y de la localización de las intervenciones públicas, se propone un índice de impacto de las mismas. La distribución espacial de estos índices de impacto en la zona de influencia de la intervención servirán de base para el análisis; así, fijándonos unos objetivos concretos del centro decisor sobre la homogeneidad de esta distribución, planteamos un modelo que de acuerdo al principio de equidad territorial nos permite asignar el presupuesto disponible entre las distintas localizaciones fijadas a priori. Mediante la comparación de la distribución espacial de los índices de impacto obtenidos podremos obtener una medida de evaluación del proceso de intervención y del impacto del mismo. ; [EN] This work provides an analysis and an optimization model of the spatial impact for the urban policies of local governments in terms of urban regeneration and rehabilitation of degraded historic areas. From the amount invested and state intervention locations, an impact index is put forward. The spatial distribution of these impact indexes in the interventions' area of influence will be the basis for the analysis; hence, by setting some specific objectives of the decision agent about this distribution homogeneity, we propose a model which will allow us to allocate the budget available among the different locations fixed a priori. By means ...

[EN] In this article, the economic-financial structure of the Organization of Fruit and Vegetable Producers (OPFH) has been analysed, classifying them according to the criteria of enterprise size established by the IV Directriz Comunitaria, conducting an interview to the recognised entities in the Valencian Community (Community that represents a 47 p. 100 of the OPFH of Spain). According to the results, it could be stated that the OPFH present better financial indicators if compared with the research on Fruit and Vegetable Cooperatives (enterprise basis more representative of the OPFH) forming the sub-units of associate entities most developped from the managerial point of view. The analysis of the size groups above mentioned show that the big ones have a better economic-financial structure, although it's got no effect on improving the liquidation of the members putting an almost absolute absence of scale economics. ; [ES] En el presente trabajo se ha analizado la estructura económico-financiera de las Organizaciones de Productores de Frutas y Hortalizas (OPFH), clasificándolos según los criterios de tamaño empresarial que establece la IV Directriz Comunitaria, mediante la realización de una encuesta a las entidades reconocidas en la Comunidad Valenciana (Comunidad que representa el 47 p. 100 de las OPFH del Estado Español). A la vista de los resultados, se puede afirmar que las OPFH presentan unos indicadores financieros más favorables si los comparamos ocn los estuidos realizados sobre las cooperativas hortofrutícolas (base empresarial más representativas de las OPFH), constitutyendo el subconjunto de entidades asociativas más desarrollado desde el punto de vista empresarial. El análisis de los grupos de tamaño antedichos nos indica que son las de mayor tamaño las que poseen una mejor estructura económico-financiera, si bien no se traduce en una mejora de la liquidación a los socios, poniéndose de manifiesto una casi absoluta ausencia de economía de escala. ; Server Izquierdo, RJ.; Segura García Del Río, B. ...

[EN] Supplier evaluation is a relevant task of supply chain management where multicriteria methods make great contributions to manufacturing industries. This is not the case in food distribution companies, which have a key role in providing safe and affordable food to society. The purpose of this research is to measure the sustainability of products and suppliers in food distribution companies through a multiple criteria approach. Firstly, the system proposed provides indicators to qualify products and assess the food quality, using the compensatory Multi-Attribute Utility Theory (MAUT) model. Secondly, these indicators are included in supplier evaluation, which takes economic, environmental, and social criteria into account. MAUT and Preference Ranking Organisation Method for Enrichment Evaluation (PROMETHEE), a non-compensatory method, are used for supplier evaluation. This approach has been validated for fresh food in a supermarket chain, mainly using historical data. Partial indicators, such as food safety scores, together with global indicators of suppliers, inform the most appropriate decisions and the most appropriate relations between companies and providers. Poor performance in food safety can lead to the disqualification of some suppliers. MAUT is good for qualifying products and is easy to apply at the operational level in logistic platforms, while PROMETHEE is more suitable for supplier segmentation, as it helps to identify supplier strengths and weaknesses. ; This research was funded by the Regional Ministry of Education, Research, Culture and Sport of the Autonomous Government of the Valencian Region, Spain, grant number AICO/2017/066. ; Segura Maroto, M.; Maroto Álvarez, MC.; Segura García Del Río, B. (2019). Quantifying the Sustainability of Products and Suppliers in Food Distribution Companies. Sustainability. 11(21):1-18. https://doi.org/10.3390/su11215875 ; S ; 1 ; 18 ; 11 ; 21 ; Thies, C., Kieckhäfer, K., Spengler, T. S., & Sodhi, M. S. (2019). Operations research for sustainability ...

The debate on the multifunctionality of agriculture and its connections with territorial policies are the basis of the most appropriate approach to legitimize public interventions in the agricultural sector. The main obstacle of this public intervention is to know the goods and services provided by agricultural systems and elicitation of the social preferences for them. We created a descriptive approach for the multifunctionality of agricultural systems that is based on the review of the scientific literature focused on multifunctionality and the goods and services of agricultural systems. The review shows a large variety of activities and approaches, which can be grouped by their economic dimension, social dimension and environmental dimension. Multicriteria techniques, such as the Analytic Hierarchy Process (AHP), can help elicit the priorities and the relative importance of different functions attributed by the society as a whole. The authorities can take into account these results to inform and support their political decisions. This paper describes a methodological approach to determine the Social Welfare Function by using AHP. The proposed methodology is applied to the Huerta de Valencia , a rich peri-urban agricultural system with a variety of resources, around which there is an open political-institutional debate to define a protection scheme. The results are very interesting and useful to enrich this debate. ; The authors acknowledge the support received from the Spanish Ministry of Economy and Competitiveness through the research project "Multiple Criteria and Group Decision Making integrated into Sustainable Management" (Ref. ECO2011-27369). ; Marqués Pérez, I.; Segura García Del Río, B.; Maroto Álvarez, MC. (2014). Evaluating the Functionality of Agricultural Systems: Social Preferences for multifunctional peri-urban agriculture. The Huerta de Valencia as case study. Spanish Journal of Agricultural Research. 12(4):889-901. https://doi.org/10.5424/sjar/2014124-6061 ; S ; 889 ; 901 ; 12 ; 4 ; Abbler D, ...

Purpose ¿ The purpose of this paper is to provide an analysis and an optimization model of the spatial impact for the externalities derived from urban regeneration and rehabilitation of degraded and segregated historic heritage areas. Design/methodology/approach ¿ From the amount invested and state intervention locations, an impact index is put forward. The spatial distribution of these impact indexes in the interventions' area of influence will be the basis for the analysis. Hence, by setting some specific objectives of the decision agent about this distribution homogeneity, and with the aim of avoiding inner segregation and to facilitate the sustainable urban development and cohesion of the neighborhood as a whole, a model which will allow the allocation of the budget available among the different locations fixed a priori is proposed. Findings ¿ It is found that by comparing the spatial distributions of impact indexes obtained in both situations, a measure of the urban regeneration and rehabilitation process and its impact can be obtained. Originality/value ¿ In order to favour the neighborhoods' internal cohesion and to avoid inner segregation, the model enables one to better address priority areas of intervention inside a historic heritage urban area and to better achieve sustainable urbanization by providing a more equitable and efficient managing of resources. ; Cervelló Royo, RE.; Garrido-Yserte, R.; Segura García Del Río, B. (2012). An urban regeneration model in heritage areas in search of sustainable urban development and internal cohesion. Journal of Cultural Heritage Management and Sustainable Development. 2(1):44-61. doi:10.1108/20441261211223261 ; S ; 44 ; 61 ; 2 ; 1 ; Berliant, M., Peng, S.-K., & Wang, P. (2006). Welfare analysis of the number and locations of local public facilities. Regional Science and Urban Economics, 36(2), 207-226. doi:10.1016/j.regsciurbeco.2005.06.006 ; Blasius, J., Friedrichs, J., & Galster, G. (2007). Introduction: Frontiers of Quantifying Neighbourhood Effects. ...

[EN] Company valuation is increasingly used in company management for various purposes. However, in Spain, information that is useful for small and medium-sized enterprises (SMEs) is non-existent. In order to broaden this information, a mass model for valuation of companies is proposed to enable valuation multiples to be obtained. This model has been applied to SMEs in the food sector in Spain. However, the asymmetry of the distributions obtained causes an upwards bias of the mean multiples and makes it difficult to establish statistically significant differences between the distributions. To solve this problem, an algorithm to eliminate outliers has been designed which enables the most probable range of values to be obtained for each multiple. The multiples obtained are compared with the multiples for European food companies listed on the stock market, revealing statistically significant differences. ; Ribal Sanchis, FJ.; Blasco Ruiz, A.; Segura García Del Río, B. (2009). Truncated distributions of valuation multiples: an application to European food firms. International Journal of Mathematics in Operational Research. 1(4):419-432. doi:10.1504/IJMOR.2009.026275 ; S ; 419 ; 432 ; 1 ; 4

419 432 1 4 ; S ; [EN] Company valuation is increasingly used in company management for various purposes. However, in Spain, information that is useful for small and medium-sized enterprises (SMEs) is non-existent. In order to broaden this information, a mass model for valuation of companies is proposed to enable valuation multiples to be obtained. This model has been applied to SMEs in the food sector in Spain. However, the asymmetry of the distributions obtained causes an upwards bias of the mean multiples and makes it difficult to establish statistically significant differences between the distributions. To solve this problem, an algorithm to eliminate outliers has been designed which enables the most probable range of values to be obtained for each multiple. The multiples obtained are compared with the multiples for European food companies listed on the stock market, revealing statistically significant differences. Ribal Sanchis, FJ.; Blasco Ruiz, A.; Segura García Del Río, B. (2009). Truncated distributions of valuation multiples: an application to European food firms. International Journal of Mathematics in Operational Research. 1(4):419-432. doi:10.1504/IJMOR.2009.026275

Although the discounted cash-flow is still considered to be the fundamental value of an asset, there are few studies which assess its ability to explain movements in the market prices of agricultural assets. The aim of this work was to compare the evolution of market prices of Farmland to the series of values that would be obtained by applying the income approach method using official Spanish statistical data as well as two proposed methods: on the similarity of the dynamical structure of prices and returns time series, on the one hand; and on the regression between both series, on the other. The results obtained are not consistent with the hypothesis that the values obtained by the income approach method can explain the movements observed in market prices. Only in certain isolated cases, such as the Autonomous Region of Aragón. Therefore, other causes should be considered both at national and regional level. ; Cervelló Royo, RE.; Segura García Del Río, B.; Pérez-Salas Sagreras, JL. (2012). Land value and returns on farmlands: an analysis by Spanish Autonomous Regions. SPANISH JOURNAL OF AGRICULTURAL RESEARCH. REVISTA DE INVESTIGACION AGRARIA. 10(2):271-280. doi:10.5424/sjar/2012102-280-11 ; S ; 271 ; 280 ; 10 ; 2 ; Chavas, J.-P., & Thomas, A. (1999). A Dynamic Analysis of Land Prices. American Journal of Agricultural Economics, 81(4), 772. doi:10.2307/1244323 ; Chicoine, D. L. (1981). Farmland Values at the Urban Fringe: An Analysis of Sale Prices. Land Economics, 57(3), 353. doi:10.2307/3146016 ; Chicoine, D. L., & Hendricks, A. D. (1985). Evidence on Farm Use Value Assessment, Tax Shifts, and State School Aid. American Journal of Agricultural Economics, 67(2), 266. doi:10.2307/1240678 ; Clark, J. S., Fulton, M., & Scott, J. T. (1993). The Inconsistency of Land Values, Land Rents, and Capitalization Formulas. American Journal of Agricultural Economics, 75(1), 147. doi:10.2307/1242963 ; De Fontnouvelle, P., & Lence, S. H. (2002). Transaction Costs and the Present Value «Puzzle» of Farmland ...

[EN] In 2015 the Paris Agreement set the goals for reducing greenhouse gas emissions. To achieve these objectives, it is necessary to boost electricity generation coming from renewable energy sources, particularly solar energy. Finding areas that are suitable for solar farm development is crucial for the economic feasibility of these projects and the sustainable use of land. This research investigates how to identify optimal sites for the development of solar plants. A GIS-based approach combined with a Multi-Criteria Evaluation methodology is used to create a map which shows a ranking of areas with high potential for solar farm development. The GIS-based methodology is employed in the treatment of the legal and environmental criteria and sub-criteria to delimit the suitable locations. These locations are evaluated and ranked by order using the PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluations). The importance of each criteria and sub-criteria is determined by an Analytic Hierarchy Process (AHP). In the Valencian Community the most discriminating criterion, when selecting the best locations, is the intensity of solar radiation, while temperature is the least discriminant. In terms of areas, the most suitable are located in the province of Alicante, while the least suitable are in the north of the Castellon province. It is also observed that the most appropriate locations are those that have greater solar radiation, and/or are at a lower altitude. (C) 2020 Elsevier Ltd. All rights reserved. ; The authors acknowledge the support received from the Generalitat Valenciana through the research project "Sustainability of the Food Value Chain: From Production to Responsible Consumption" (Ref. AICO/2017/066). ; Marqués Pérez, I.; Guaita-Pradas, I.; Gallego Salguero, AC.; Segura García Del Río, B. (2020). Territorial Planning for Photovoltaic Power Plants using an outranking approach and GIS. Journal of Cleaner Production. 257:1-17. https://doi.org/10.1016/j.jclepro.2020.120602 ; S ; 1 ; 17 ...