Measuring irrigation water use efficiency using stochastic production frontier: An application on citrus producing farms in Tunisia
AbstractThis paper proposes an alternative measure of irrigation water efficiency based on the concept of input-specific technical efficiency. It uses a stochastic production frontier approach, based on Battese and Coelliâ€™s (1995) inefficiency effect model, to obtain farm-specific estimates of technical and irrigation water efficiency, and a second-stage regression approach to identify the factors that influence irrigation water efficiency differentials. This methodology was applied to a sample of 144 citrus farms in Nabeul, Tunisia. Technical efficiency varies widely, suggesting that these citrus farmers could increase their production by as much 33% by using inputs more efficiently. Mean irrigation water efficiency is similarly variable, and on average below technical efficiency, suggesting that they could produce the same quantity of citrus using the same quantity of inputs but 47% less water. Finally, the results showed that the farmerâ€™s age, education level and agricultural training, and the farmâ€™s size, share of productive trees and availability of water tend to affect the degree of both technical and irrigation water efficiency positively.
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Bibliographic InfoArticle provided by African Association of Agricultural Economists in its journal African Journal of Agricultural and Resource Economics.
Volume (Year): 01 (2007)
Issue (Month): 2 (September)
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Water efficiency; Stochastic frontier production function; Citrus farms; Tunisia; Resource /Energy Economics and Policy;
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- Chebil, Ali & Frija, Aymen & Abdelkafi, Belhassen, 2010. "Irrigation water use efficiency in collective irrigated schemes of Tunisia: determinants and potential irrigation cost reduction," 2010 AAAE Third Conference/AEASA 48th Conference, September 19-23, 2010, Cape Town, South Africa 96158, African Association of Agricultural Economists (AAAE) & Agricultural Economics Association of South Africa (AEASA).
- Yigezu, Yigezu A. & Ahmed, Mohamed A. & Shideed, Kamil & Aw-Hassan, Aden & El-Shater, Tamer & Al-Atwan, Samman, 2013. "Implications of a shift in irrigation technology on resource use efficiency: A Syrian case," Agricultural Systems, Elsevier, vol. 118(C), pages 14-22.
- Frija, Aymen & Chebil, Ali & Speelman, Stijn & Buysse, Jeroen & Van Huylenbroeck, Guido, 2009. "Water use and technical efficiencies in horticultural greenhouses in Tunisia," Agricultural Water Management, Elsevier, vol. 96(11), pages 1509-1516, November.
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