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A Stochastic Dominance Comparison of Water-Conserving Irrigation Strategies

Thomas Harris and Harry P. Mapp

American Journal of Agricultural Economics, 1986, vol. 68, issue 2, 298-305

Abstract: Stochastic dominance and stochastic dominance with respect to a function are used to compare water-conserving irrigation strategies in an area of declining ground water supplies. A computerized grain sorghum plant growth model using daily weather observations provides the basis for stochastic dominance comparisons. Six irrigation strategies dominate contemporary intensive irrigation practices by first-degree stochastic dominance and two additional strategies exhibit second-degree stochastic dominance over contemporary practices. Dominant strategies involve irrigating based on a 45 percent soil water criterion and eliminating early season irrigations. Some dominant strategies reduce water use by as much as 40 percent while increasing expected net returns.

Date: 1986
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