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El riesgo de disponibilidad de agua en la agricultura: una aplicación a las cuencas del Guadalquivir y del Segura/Water Availability Risk in Agriculture: An Application to Guadalquivir and Segura River Basins

  • PÉREZ BLANCO, CARLOS DIONISIO

    ()

    (Instituto de Políticas y Bienes Públicos, Consejo Superior de Investigaciones Científicas.)

  • GÓMEZ GÓMEZ, CARLOS MARIO

    ()

    (Departamento de Fundamentos de Economía e Historia Económica, Facultad de Ciencias Económicas, Universidad de Alcalá de Henares.)

  • DEL VILLAR GARCÍA, ALBERTO

    ()

    (Departamento de Economía Aplicada, UNIVERSIDAD DE ALCALÁ, ESPAÑA.)

La agricultura es un sector clave en la economía rural y constituye un motor de crecimiento en regiones del sur de España capaces de desarrollar un regadío competitivo de alto rendimiento. Este es el caso de determinadas comarcas de la Cuenca del Guadalquivir y del Segura, que no obstante afrontan los problemas derivados de la escasez creciente de agua y de un riesgo de sequía cada vez más acusado. Para responder más efectivamente a estos problemas, se han aprobado recientemente una serie de Planes de Sequía que pretenden ofrecer una respuesta planeada y anticipada que sustituya a la gestión de emergencias del pasado. En este trabajo se estudia el impacto previsible de las reglas de decisión de dichos Planes de Sequía (aprobados sin ningún estudio previo sobre las repercusiones económicas de su aplicación), con el objetivo de evaluar si estos contribuyen o no a la sostenibilidad del regadío y por lo tanto de la economía rural y regional que se sustenta sobre esta actividad económica. Se desarrolla un modelo estocástico para evaluar las pérdidas económicas derivadas de la aplicación de los Planes de Sequía en el sector agrario, concluyendo que tales planes no suponen un avance en la sostenibilidad del regadío ni en la garantía de suministro para usos prioritarios. Agriculture is a key sector in rural economics. In some Southern Regions of Spain capable of developing a competitive irrigation sector, agriculture is a powerful means towards development. This is the case of many comarcas of Guadalquivir and Segura River Basins, which however face a growing water scarcity and drought risk. To respond these problems in an effective manner, a series of Planes de Sequía have been approved in order to give a planned and strategic response. This paper focuses on expected impact of new decision rules established in the Planes de Sequía (which were passed without any previous economic impact analysis) and assess whether or not they contribute to irrigation sustainability and thus regional and rural economics development. This paper develops a stochastic model to assess economic loss derived from Planes de Sequía implementation over irrigated agriculture. Conclusions show that Planes de Sequía do not warrantee irrigation sustainability and priority uses water supply.

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Article provided by Estudios de Economía Aplicada in its journal Estudios de Economía Aplicada.

Volume (Year): 29 (2011)
Issue (Month): (Abril)
Pages: 333-358

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Handle: RePEc:lrk:eeaart:29_1_9
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  1. Espey, Molly, 2005. "BOOK REVIEW: Robert A. Young. Determining the Economic Value of Water: Concepts and Methods," Journal of Agribusiness, Agricultural Economics Association of Georgia, vol. 23(2).
  2. Martin, Steven W. & Barnett, Barry J. & Coble, Keith H., 2001. "Developing And Pricing Precipitation Insurance," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 26(01), July.
  3. Dolores Tirado & Carlos M. Gómez & Javier Lozano, 2006. "Efficiency improvements and water policy in the balearic islands: a general equilibrium approach," Investigaciones Economicas, Fundación SEPI, vol. 30(3), pages 441-463, September.
  4. Steven Renzetti, 2005. "Book Review: Robert A. Young (2005), Determining the Economic Value of Water: Concepts and Methods. Resources for the Future. Washington, DC, USA. xv+356 pp. $39.00. ISBN 1 891853 98 8," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 32(3), pages 439-441, November.
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