Consulta: creatorFacets:"Gomez-Limon,   Jose Antonio"
Registros recuperados: 21
Data/hora: 11/06/2024 19:13:07

MULTI-CRITERIA ANALYSIS OF FACTORS USE LEVEL: THE CASE OF WATER FOR IRRIGATION
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Riesgo,   Laura; Arriaza Balmón,   Manuel.
In this paper we present a methodology to analyse input use in the agricultural sector. The novelty of the theoretical model explained is that it has been developed considering a multi-criteria environment. Thus, the optimal input use condition is determined by the assessment of "multi-attribute utility" and "multi-attribute marginal utility". We show how the approach adopted in this paper is a generalization of the single-attribute expected utility theory. The theoretical model developed is further implemented in an empirical application that studies water for irrigation use as a particular case.  Results show how multi-attribute utility functions elicited for a sample of 52 irrigators explain differences on irrigation water use in relative homogenous...
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/25836

Valoracion de bienes ambientales complejos: una alternativa multicriterio
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Barreiro-Hurlé,   Jesús.
RESUMEN La valoración económica de bienes ambientales complejos presenta una serie de aspectos problemáticos. Este trabajo se centra en dos de ellos: la linealidad de los atributos en función de valor de estos bienes y la heterogeneidad en las funciones de utilidad de los individuos. Para ello se propone una metodología basada en la Teoría de la Utilidad Multiatributo que permite contrastar la importancia dada a estos aspectos. Dicha metodología se aplica a un espacio natural protegido en la provincia de Granada. De los resultados se puede concluir que la no-linealidad de los atributos y la heterogeneidad de las funciones de utilidad individuales son aspectos relevantes en la valoración de bienes ambientales.    ABSTRACT Economic valuation of comlex...
Tipo: Journal Article
Palavras-chave: Complex environmental goods; Heterogeneity; Attribute non-lineartiy; Multiattribute utility; Valuation; Bienes ambientales complejos; Heterogeneidad; Linealidad de atributos; Utilidad multiatributo; Valoracion; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q15; Q18; Q25.
Ano: 2007
URL: http://purl.umn.edu/7055

MCDM Farm System Analysis for Public Management of Irrigated Agriculture
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Berbel,   Julio; Arriaza Balmón,   Manuel.
In this paper we present a methodology within the multi-criteria paradigm to assist policy decision-making on water management for irrigation. In order to predict farmers' response to policy changes a separate multi-attribute utility function for each homogeneous group, attained applying cluster analysis, is elicited. The results of several empirical applications of this methodology suggest an improvement of the ability to simulate farmers' decision-making process compared to other approaches. Once the utility functions are obtained the policy maker can evaluate the differential impacts on each cluster and the overall impacts in the area of study (i.e. a river basin) by aggregation. On the empirical side, the authors present some studies for different...
Tipo: Conference Paper or Presentation
Palavras-chave: Multi-attribute utility theory; Water management; Irrigation; Policy analysis; Agricultural and Food Policy; Q25; Q15; C61.
Ano: 2005
URL: http://purl.umn.edu/24676

Planificacion multicriterio de explotaciones agrarias en areas tropicales protegidas. El caso de la zona protectora Guanare-Masparro (Venezuela)
Provedor de dados: 31
Autores: Flores,   Jose; Gomez-Limon,   Jose Antonio.
La presente investigación tiene como objetivo principal el desarrollo de una propuesta metodológica de planificación multicriterio con el fin de optimizar el uso de la tierra con fines agrarios en áreas protegidas tropicales. Para ello se han empleado las técnicas del Proceso Analítico Jerárquico (AHP) y la programación compromiso (PC), considerado objetivos de carácter económico, ambiental y social. La aplicación empírica desarrollada se ha centrado en un área protegida de Venezuela con tradicional vocación agraria. Los resultados de la planificación evidencia la existencia de importantes conflictos entre los objetivos planteados, así como la necesidad de la intervención pública para lograr un desempeño del sector agrario en concordancia con las...
Tipo: Journal Article
Palavras-chave: Agricultural planning; Protected areas; Analytic hierarchy process; Compromise programming; Venezuela; Agribusiness; Q25; Q15; C61.
Ano: 2006
URL: http://purl.umn.edu/8002

Agricultural Risk Aversion Revisited: A Multicriteria Decision-Making Approach
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Riesgo,   Laura; Arriaza Balmón,   Manuel.
In modelling farm systems it is widely accepted that risk plays a central role. Furthermore, farmers' risk aversion determines their decisions in both the short and the long run. This paper presents a methodology based on multiple criteria mathematical programming to obtain relative and absolute risk aversion coefficients. We rely on multiattribute utility theory (MAUT) to elicit a separable additive multiattribute utility function and then estimate the risk aversion coefficients and apply this methodology to an irrigated area of Northern Spain. The results show a wide variety of attitudes to risk among farmers, who mainly exhibit decreasing absolute risk aversion (DARA) and constant relative risk aversion (CRRA).
Tipo: Conference Paper or Presentation
Palavras-chave: Risk analysis; Agriculture; Utility theory; Multiple criteria analysis; Risk and Uncertainty.
Ano: 2002
URL: http://purl.umn.edu/24827

Opinion publica sobre la multifuncionalidad del regadío: el caso de Castilla y Leon
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Gomez-Ramos,   Almudena.
This paper analyses the demands from the society of Castilla y León (Spain) regarding its agricultural sector through the valuation of the relevance of its productive and non-productive functions. Additionally, it assesses the level of social satisfaction concerning the performance of these functions by irrigated agriculture in this region. For this purpose primary data colleted through a survey has been used. Results obtained show that the average citizen does not perceive a higher utility from irrigated agriculture compared with the whole agricultural sector. For these agricultural systems the social function is the element of multifunctionality considered most relevant regarding the perceived social welfare.     Resumen Este trabajo analiza las demandas...
Tipo: Journal Article
Palavras-chave: Multifunctionality; Social demand; Irrigated agriculture; Public perception; Castilla y Leon; Crop Production/Industries; Q25; Q15.
Ano: 2007
URL: http://purl.umn.edu/8001

Andalusian Demand for Non-Market Goods from Mountain Olive Groves
Provedor de dados: 31
Autores: Arriaza Balmón,   Manuel; Gomez-Limon,   Jose Antonio; Kallas,   Zein; Nekhay,   Olexandr.
Agricultural multifunctionality is the recognition of the joint exercise of economic, environmental and social functions by this sector. In order to make this concept operative for the design of public policies, it is necessary to estimate the social demand for such functions. The main objective of this article is to present an empirical application in this line. For this purpose we have taken the agricultural system of mountain olive groves in Andalusia (Southern Spain) at risk of abandonment after the decoupling of the EU subsidies as a case study. The economic valuation technique used is the Choice Experiment. According to the results, there is a different contribution of each attribute to the improvement of the Society level of utility. The main...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural multifunctionality; Economic valuation; Choice experiment; Olive groves; Andalusia (Spain); Crop Production/Industries; Demand and Price Analysis; Q11; Q18; Q24.
Ano: 2006
URL: http://purl.umn.edu/25385

Sustainability assessment of olive grove in Andalusia: A methodological proposal
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Riesgo,   Laura.
Recently the olive sector has had important changes in Andalusia due to both the enlargement and the intensification of farming. The expansion of the olive grove in Andalusia is causing sustainability problems, not only from the socio-economic dimension (profit reduction) but environmental (erosion, water pollution or biodiversity losses). The main objective of this study is to develop a methodology to analyse the sustainability of the olive grove farms in Andalusia. This methodology will allow us to bear with the three dimensions of sustainability (economic, social and environmental) as well as to obtain a precise diagnosis of the olive grove through a selection of a set of indicators. This methodology will be applied in future research works in order to...
Tipo: Conference Paper or Presentation
Palavras-chave: Olive tree; Sustainability; Indicators; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics.
Ano: 2010
URL: http://purl.umn.edu/109323

Prospective analysis of the agriculture in Castilla y Leon (Spain)
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Gomez-Ramos,   Almudena; Sanchez,   G.
The objective of this paper is to carry out a foresight analysis of the agricultural sector in Castilla y León (Spain) for 2020. The methodology used to build the various scenarios is prospective analysis. We first performed a structural analysis in order to identify the key driving forces that characterize the evolution of the sector in this region (agricultural production, demand for agricultural products and institutional framework). We then carried out a morphological analysis that generated a range of “partial scenarios” from which we finally built four “global scenarios”. These last scenarios characterize the possible trends in the variables of change previously identified. Lastly, the common key parameters of each global scenario were quantified by...
Tipo: Conference Paper or Presentation
Palavras-chave: Prospective analysis; Scenario building; CAP; Agricultural and Food Policy.
Ano: 2008
URL: http://purl.umn.edu/44054

Marginality and Restoration of Olive Plantations in Andalusia
Provedor de dados: 31
Autores: Arriaza Balmón,   Manuel; Guzman,   Jose R.; Nekhay,   Olexandr; Gomez-Limon,   Jose Antonio.
This paper presents the first results of the initial stages of a three years research project on optimization of the use of agricultural lands subject to risk of abandonment. After devising a physical marginality index for olive cultivation based on soil quality and slope, we estimate an approximate area of 200,000 hectares of marginal olive plantations in Andalusia. The risk of abandonment of these farmlands increases with the decoupling of the CAP subsidies and with the socio-economic characteristics of the production. The probable abandonment of these areas implies the negative consequences of wild forestation. We present some actions to minimize the negative effects of this process, being the use of grass cover and hedgerows, on an initial qualitative...
Tipo: Conference Paper or Presentation
Palavras-chave: Land abandonment; Marginal olive groves; Biodiversity; Soil erosion and visual quality; Land Economics/Use; H41; Q21; Q26.
Ano: 2005
URL: http://purl.umn.edu/24603

Evaluacion de alternativas de desacoplamiento total de ayudas COP: el caso de la agricultura de regadio en el valle del Guadalquivir
Provedor de dados: 31
Autores: Arriaza Balmón,   Manuel; Avilés,   Pedro Ruiz; Gomez-Limon,   Jose Antonio.
RESUMEN El presente artículo compara la reforma de la PAC aprobada en junio de 2003 con un hipotético escenario de mayor liberalización en el que se permite la substitución de cultivos COP (cereales, oleaginosas y proteaginosas) por cultivos hortícolas y/o patatas. La simulación se lleva a cabo mediante el cálculo de una función de utilidad multiatributo para cada grupo homogéneo de agricultores: tres grupos en cada una de las tres comunidades de regantes. El método de cálculo de las funciones de utilidad no requiere ninguna interacción con el centro decisor. La validación de los modelos confirma la validez de esta metodología para la simulación de las decisiones de cultivo de estos productores. Los resultados sugieren que con el sistema alternativo...
Tipo: Journal Article
Palavras-chave: CAP; Multicriteria Decision Making; Utility function; Decoupled subsidy; Q12; Q18; C61; Q15.
Ano: 2003
URL: http://purl.umn.edu/28799

Demand for non-commodity outputs from mountain olive groves
Provedor de dados: 31
Autores: Arriaza Balmón,   Manuel; Gomez-Limon,   Jose Antonio; Kallas,   Zein; Nekhay,   Olexandr.
Agricultural multifunctionality is the recognition of the joint exercise of economic, environmental and social functions by this sector. In order to make this concept operative to support the design of public policies, it is necessary to estimate the social demand for such functions. The main objective of this article is to present an empirical application in this line. For this purpose we have adopted the agricultural system of mountain olive groves in Andalusia (Southern Spain) at risk of abandonment after the decoupling of the EU subsidies as a case study. The economic valuation technique used is the Choice Experiments. According to the results, each attribute included in the concept of multifunctionality makes a different contribution to the...
Tipo: Journal Article
Palavras-chave: Agricultural multifunctionality; Economic valuation; Choice experiments; Olive groves; Andalusia (Spain); Agricultural and Food Policy.
Ano: 2009
URL: http://purl.umn.edu/93800

Viability of the Raw Cotton Production in Spain After the Decoupling of the Subsidies
Provedor de dados: 31
Autores: Arriaza Balmón,   Manuel; Gomez-Limon,   Jose Antonio; Gonzalez,   Jose; Ruiz,   Pedro.
Considering the latest reform of the EU's Cotton Regulation of 29th April 2004, which will come into force in the 2006/07 season, we analyse its impact on the cotton production sector of Andalusia. The decoupling of subsidies implies that producers will be entitled to 65 percent of the amount received in the reference period (three years) irrespective of the crop chosen to grow. The remaining 35 percent (slightly higher) is paid as cotton are a payment. In this research, first from a survey carried out in 2004 we obtained six groups of producers using fact or analysis and cluster analysis. Then, based on this characterization, we assess the impact of two policy scenarios: (a) the implementation of the reform without any additional measures, and (b) the...
Tipo: Conference Paper or Presentation
Palavras-chave: Cotton; Spain; Mid-Term Reform; Simulation; Multi-Criteria Decision Making; Agricultural and Food Policy; Crop Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/25445

Comparative Performance of Selected Mathematical Programming Models
Provedor de dados: 31
Autores: Arriaza Balmón,   Manuel; Gomez-Limon,   Jose Antonio.
This study compares the predictive performance of several mathematical programming models. Using the cropping patterns, yields and crop gross margins of eighteen farms over a period of five years we compare the models' optimum solutions with observed crop distributions after the Reform of the EU Common Agricultural Policy of 1992. The results show that the best prediction corresponds to a model that includes expected profit and a qualitative measure of crop riskiness. The results suggest that, in order to obtain reliable predictions, the modelling of farmers' responses to policy changes must consider the risk associated with any given cropping pattern. Finally, we test the ability of the proposed model to reproduce the farmers' observed behaviour with...
Tipo: Conference Paper or Presentation
Palavras-chave: Model performance; Mathematical programming; Modelling; Decision-making; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/24792

Demand for Non-Commodity Outputs from Spanish Extensive Agricultural Systems
Provedor de dados: 31
Autores: Kallas,   Zein; Gomez-Limon,   Jose Antonio; Arriaza Balmón,   Manuel.
Agricultural multifunctionality is the recognition of the joint exercise of economic, environmental and social functions by this sector. In order to make this concept operative to support the design of public policies, it is necessary to estimate the social demand for such functions. The main objective of this article is to present two empirical applications in this line. For this purpose we have adopted the agricultural system of mountain olive groves in Andalusia (Southern Spain) at risk of abandonment after the decoupling of the EU subsidies and the agricultural system of cereal steppes in Tierra de Campos (North-western Spain). The economic valuation technique used is the Choice Experiment. The results suggest the existence of a significant demand for...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural multifunctionality; Economic valuation; Choice experiments; Extensive agriculture; Andalusia; Castilla-Leon (Spain); Farm Management.
Ano: 2007
URL: http://purl.umn.edu/9427

Socio-Economic and Environmental Impact of AGENDA 2000 and Alternative Policy Choices for Market Liberalization on an Irrigated Area in Northwestern Spain
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Arriaza Balmón,   Manuel.
This paper presents a methodology to evaluate the impact of different policy scenarios using a farmer's utility function. The analysis shows the impact on farmers and on the environment. The case study is a community of irrigated farms (Bajo Carrión) in Northwestern Spain. The results obtained show how Agenda 2000 has little impact on farm crop distribution, gross margins, employment and environment (use of fertilizers and water). The most radical scenario (a 15 per cent COP price cut and no area payments) produces a 37.3 per cent reduction in farm gross margin, and an increase in fertilizer use of 6 per cent.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 2000
URL: http://purl.umn.edu/26458

Anaisis de la demanda de bienes y servicios no comerciales procedentes de la actividad agraria: el caso del olivar de montana andaluz
Provedor de dados: 31
Autores: Kallas,   Zein; Gomez-Limon,   Jose Antonio; Arriaza Balmón,   Manuel; Nekhay,   Olexandr.
El concepto de multifuncionalidad agraria supone el reconocimiento de la provisión conjunta de bienes y servicios de tipo económico, social y medioambiental. Con el objeto de hacer operativo este concepto para el diseño de políticas públicas es necesario estimar la demanda social de estas funciones. En este contexto, el presente trabajo supone una aplicación empírica de esta idea teniendo como caso de estudio el olivar andaluz de montaña. La valoración económica de las funciones no comerciales más relevantes de este sistema agrario se ha llevado a cabo utilizando los experimentos de elección. Según los resultados obtenidos, existe una contribución al bienestar social de cada uno de los atributos analizados, siendo el mantenimiento de la población en el...
Tipo: Journal Article
Palavras-chave: Agricultural multifunctionality economic valuation choice experiments mountain olive groves Andalusia; Spain Crop Production/Industries Demand and Price Analysis Q18 Q11 Q25.
Ano: 2006
URL: http://purl.umn.edu/8006

MODELLING FARMERS' RESPONSE TO A DECOUPLED SUBSIDY VIA MULTI-ATTRIBUTE UTILITY THEORY AND E-V ANALYSIS
Provedor de dados: 31
Autores: Arriaza Balmón,   Manuel; Gomez-Limon,   Jose Antonio.
In this paper we simulate changes in crop land allocations made by farmers in Southern Spain due to the implementation of a flat-rate subsidy. In order to reproduce farmers' decision-making process, we first group farmers by farm size into three categories and then elicit a general utility function for each group. The elicitation of the bi-attribute utility functions, based on observed crop land allocation, does not require interaction with the farmers. The results suggest that, with the same EAGGF expenditure, small and medium-sized farms in this region would benefit from this alternative scheme in terms of higher expected total gross margin, flexibility and freedom of crop choice. The new scheme reduces control and monotoring responsabilities for Member...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; Farm Management.
Ano: 2003
URL: http://purl.umn.edu/25925

Are Citizens Willing to Pay for Agricultural Multifunctionality?
Provedor de dados: 31
Autores: Kallas,   Zein; Gomez-Limon,   Jose Antonio; Arriaza Balmón,   Manuel.
Agricultural multifunctionality is the recognition of the joint exercise of economic, environmental and social functions by this sector. In order to make this concept operative for the design of public policies, it is necessary to estimate the social demand for such functions. The main objective of this article is to present an empirical application in this line. For this purpose we have taken the agricultural system of cereal steppes in Tierra de Campos (Spain) as a case study. The economic valuation technique used is the Choice Experiment. The results suggest the existence of a significant demand for the different functions, although this demand is heterogeneous, depending on the socio-economic characteristics of the individuals.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural multifunctionality; Agricultural policy; Economic valuation; Choice experiment; Consumer/Household Economics; Q18; Q11; Q25.
Ano: 2006
URL: http://purl.umn.edu/25476

ALTERNATIVE APPROACHES ON CONSTRUCTING A COMPOSITE INDICATOR TO MEASURE AGRICULTURAL SUSTAINABILITY
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Riesgo,   Laura.
The aim of this paper is to carry out a comparative analysis of alternative methods on constructing composite indicators to measure global sustainability of the agricultural sector. This comparison is implemented empirically on the irrigated agriculture of the Duero basin (Spain) as a case study. For this purpose, this research uses a dataset of indicators previously calculated for different farm-types and policy scenarios. The results allow to establish a hierarchy of the policy scenarios on the basis of the level of sustainability achieved. Furthermore, analyzing the heterogeneity of different farms-types in each scenario, is also possible to determine the main features of the most sustainable farms in each case. All this information is useful in order...
Tipo: Conference Paper or Presentation
Palavras-chave: Sustainability; Composite Indicators; Irrigated agriculture; Scenarios; Agricultural policy; Agricultural and Food Policy; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2008
URL: http://purl.umn.edu/6489

Analisis de escenarios de políticas para la gestion publica en la agricultura de regadio
Provedor de dados: 31
Autores: Riesgo,   Laura; Gomez-Limon,   Jose Antonio.
En este trabajo se presenta un enfoque metodológico para el análisis de presiones e impactos de la aplicación conjunta de diferentes escenarios de política agraria y de tarifación del agua de riego. Para alcanzar dicho objetivo se asume que los agricultores consideran distintos criterios en la gestión de su actividad productiva. En este contexto decisional se utilizan modelos de programación matemática basados en la Teoría de la Utilidad Multiatributo (MAUT), de modo que pueda simularse el comportamiento de los agricultores en el futuro. Como resultado de dicha simulación no sólo se obtienen las variables de decisión de los agricultores (planes de cultivos), sino también un conjunto de indicadores económicos, sociales y ambientales que serán de utilidad...
Tipo: Journal Article
Palavras-chave: Multiple-Criteria Modelling; Irrigated Agriculture; Scenario Analysis; CAP; Water Policy.; Public Economics; Q25; Q15; C61.
Ano: 2005
URL: http://purl.umn.edu/28768