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Future Cropland Requirements and Projection Sensitivity
Author(s) -
Johnston W. E.,
Tolley G. S.
Publication year - 1966
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 - 10.2307/1236863
Subject(s) - sensitivity (control systems) , projection (relational algebra) , environmental science , computer science , engineering , algorithm , electronic engineering
Ranges are developed within which it is judged there are two out of three chances that 1968 demand and yield outcomes will occur. Five crop categories for 10 regions are considered. Drawing on a theorem pertaining to the probability distribution of a quotient, we use the foregoing results to estimate ranges for the regional‐commodity cells. Ranges for regional cropland totals and national totals for each crop category are estimated as the sum of approximately normally distributed variables. The 1968 ranges are compared with recent acreages to determine if it is likely that particular acreages will expand or contract.