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A Stochastic Dominance Comparison of Water‐Conserving Irrigation Strategies
Author(s) -
Harris Thomas R.,
Mapp Harry P.
Publication year - 1986
Publication title -
american journal of agricultural economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.949
H-Index - 111
eISSN - 1467-8276
pISSN - 0002-9092
DOI - 10.2307/1241431
Subject(s) - stochastic dominance , dominance (genetics) , irrigation , sorghum , environmental science , water resource management , mathematics , agricultural engineering , econometrics , economics , agronomy , biology , engineering , biochemistry , gene
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.