Willingness to pay for improved irrigation water supply reliability: An approach based on probability density functions

Maria Dolores Guerrero-Baena, Anastasio J. Villanueva, José A. Gómez-Limóna and Klaus Glenk

No 276193, 166th Seminar, August 30-31, 2018, Galway, West of Ireland from European Association of Agricultural Economists

Abstract: In irrigated agricultural systems, the main source of uncertainty to irrigators relates to water supply, as it significantly affects farm income. This paper investigates farmers’ utility changes associated with shifts in the probability density function of water supply leading to a higher water supply reliability (higher mean and lower variance in annual water allotments). A choice experiment relying on a mean-variance approach is applied to the case study of an irrigation district of the Guadalquivir River Basin (southern Spain). To our knowledge, this is the first study using parameters of these probability density functions of water supply as choice experiment attributes to value water supply reliability. Results show that there are different types of farmers according to their willingness to pay (WTP) for improvements in water supply reliability, with some willing to pay nothing (44.9%), others (28.6%) with relatively low WTP, and the remainder of farmers (26.5%) having high WTP. A range of factors influencing farmers’ preferences toward water supply reliability are revealed, with those related to risk exposure to water availability being of special importance. The results will help to design more efficient policy instruments to improve water supply reliability in semi-arid regions.

Keywords: Agricultural and Food Policy; Environmental Economics and Policy (search for similar items in EconPapers)
Date: 2018-09-01
New Economics Papers: this item is included in nep-agr, nep-dcm, nep-env and nep-upt
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Journal Article: Willingness to pay for improved irrigation water supply reliability: An approach based on probability density functions (2019)
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Persistent link: https://EconPapers.repec.org/RePEc:ags:eaa166:276193

DOI: 10.22004/ag.econ.276193

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