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Título
Influence of crop-water production functions on the expected performance of water pricing policies in irrigated agriculture
Autor(es)
Palabras clave
Mathematical programming models
Water pricing
Deficit irrigation
Water policy
Clasificación UNESCO
5506.06 Historia de la Economía
Fecha de publicación
2022
Editor
Elsevier
Citación
Sapino, F., Pérez-Blanco, C. D., Gutiérrez-Martín, C., García-Prats, A., & Pulido-Velazquez, M. (2022). Influence of crop-water production functions on the expected performance of water pricing policies in irrigated agriculture. Agricultural Water Management, 259, 107248. https://doi.org/10.1016/j.agwat.2021.107248
Resumen
[EN] Agricultural economics Water Programming Models (WPM) has found that irrigators in water scarce areas have a
rather inelastic response to water prices, making water pricing cost-ineffective towards water saving. We hypothesize that the predicted water saving performance of pricing is significantly underestimated by issues of
model structure, due to the exclusion of deficit irrigation from the set of decision variables available to agents in
conventional WPM. To test our hypothesis, we develop a model that integrates a continuous crop-water production function into a positive multi-attribute WPM, which allows us to assess agents’ adaptive responses to
pricing through deficit irrigation. The model is illustrated with an application to the El Salobral-Los Llanos
irrigated area in Spain. Our results show that incorporating deficit irrigation as an adaptation option makes the
water demand curve significantly more elastic as compared to an alternative model setting where deficit irrigation is precluded. We conclude that ignoring deficit irrigation can lead to a significant underestimation of the
cost-effectiveness of water pricing towards water saving.
URI
ISSN
0378-3774
DOI
10.1016/j.agwat.2021.107248
Versión del editor
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Patrocinador
Publicación en abierto financiada por la Universidad de Salamanca como participante en el Acuerdo Transformativo CRUE-CSIC con Elsevier, 2021-2024