A new methodology for assessing the impact of water-pricing scenarios: case study of small-scale irrigation schemes in South Africa
AbstractWorldwide growing water scarcity has increased the call for economic instruments to stimulate rational water use in agriculture. In addition cost-recovery is now widely accepted as a cornerstone of sustainable water management. As a consequence now in developing countries, where currently agricultural water use is often still heavily subsidized, a tendency exists of introducing water-pricing as a policy to achieve more sustainable water use. The exact impact of water pricing policies on irrigation water use or on the farmers’ production system is however mostly unknown. A new two-stage methodology that allows estimating at the farm level the effects of introducing or raising a water price on the agricultural production process and water demand is introduced in this study. The first stage comprises the construction of a technical efficiency frontier and the calculation of the technical and allocative efficiency levels of each farm. This representation of the technology is used in the second stage in a profit maximization model. As an example the method is applied to the case of small-scale irrigators in South Africa. It is shown that water demand of farmers is quite responsive even to small changes in the water price. Moreover, the introduction of a water price is shown to significantly decrease farm profit. This appears to be mainly a problem for the poorer farmers.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by European Association of Agricultural Economists in its series 2008 International Congress, August 26-29, 2008, Ghent, Belgium with number 43836.
Date of creation: 2008
Date of revision:
water-pricing; water savings; irrigation; data envelopment analysis; South Africa; Resource /Energy Economics and Policy;
This paper has been announced in the following NEP Reports:
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Basil Manos & Thomas Bournaris & Mohd Kamruzzaman & Moss Begum & Ara Anjuman & Jason Papathanasiou, 2006. "Regional Impact of Irrigation Water Pricing in Greece under Alternative Scenarios of European Policy: A Multicriteria Analysis," Regional Studies, Taylor and Francis Journals, vol. 40(9), pages 1055-1068.
- Cai, Ximing & Ringler, Claudia & Rosegrant, Mark W., 2006. "Modeling water resources management at the basin level: methodology and application to the Maipo River Basin," Research reports 149, International Food Policy Research Institute (IFPRI).
- Berbel, J. & Gomez-Limon, J. A., 2000. "The impact of water-pricing policy in Spain: an analysis of three irrigated areas," Agricultural Water Management, Elsevier, vol. 43(2), pages 219-238, March.
- Gomez-Limon, J. A. & Berbel, J., 2000. "Multicriteria analysis of derived water demand functions: a Spanish case study," Agricultural Systems, Elsevier, vol. 63(1), pages 49-72, January.
- Gomez-Limon, Jose A. & Riesgo, Laura, 2004. "Irrigation water pricing: differential impacts on irrigated farms," Agricultural Economics, Blackwell, vol. 31(1), pages 47-66, July.
- Jonasson, Lars & Apland, Jeffrey, 1997. "Frontier Technology and Inefficiencies in Programming Sector Models: An Application to Swedish Agriculture," European Review of Agricultural Economics, Foundation for the European Review of Agricultural Economics, vol. 24(1), pages 109-31.
- Tim Coelli & Sanzidur Rahman & Colin Thirtle, 2002. "Technical, Allocative, Cost and Scale Efficiencies in Bangladesh Rice Cultivation: A Non-parametric Approach," Journal of Agricultural Economics, Wiley Blackwell, vol. 53(3), pages 607-626.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (AgEcon Search).
If references are entirely missing, you can add them using this form.