Monthly temperature and precipitation by State and farm production region are presented for the years 1950-84. A weighted-average process is used to aggregate across the climatic divisions within the 48 contiguous States. Two sets of aggregation weights are used: geographic areas and areas of...

Starting with an individual firm and its quadratic production function, this paper derives all related functions marginal and average cost, supply, profit, and input-demand. Since derivatives in other functions correspond to parameters of the quadratic, the results generalize. Explicit...

Monthly temperature and precipitation by State and farm production region are presented. A weighted average is used to aggregate data for the climatic divisions within the 48 contiguous States. Two alternative sets of weights are used: the divisions' geographic areas and their harvested cropland...

An approximate variance of forecast is derived based on the structural coefficients and the variance around the structural equations. For the corn model, standard error of price was estimated to be $0.23 per bushel when neither acreage nor yield are known and $0.11 per bushel when production is...

The oil palm has been the most important of the three major cash crops in the southern region of Nigeria. During the period 1955-1964, exports of palm kernels and palm oil averaged over 33 million per year, about 21 percent of the value of Nigerian exports in this period. This compares with the...