The functional form used to represent expenditures or consumption as a function of income and household size (Engel relationship) dramatically affects estimates of elasticities of these variables. This impact also holds true when the elasticities are computed at the mean of the sample used. When...

A two-stage sample of airphoto prints and point sampling was used to examine changes in land use patterns in 53 selected counties that had grown rapidly and substantially in population between 1960 and 1970. Point sampling, 20 points per square mile, was used on a sample of airphoto prints...

The obtaining of quantitative data for economic analysis of changes in the agricultural use of land has been a problem in recent years. Field study is a slow and expensive method of providing information. Usually, it requires several experienced persons to collect the data needed. The airphoto...

This investigation of price-determining infbuences in the market for irrigated land was motivated originally by a presumption that one way to evaluate land-investment alternatives, such as public expenditures for irrigation, would be to compare the present price of nonirrigated land in the...

Opinions differ among economists as to how effective statistical analyses using time series data can be in identifying factors affecting demand and in measuring their influences. Although this presentation may not materially modify these opinions, it should at least succeed in making even the...

The feasibility of quadratic programming as a means of integrating agricultural pricequantity relationships and regional resource availability is demonstrated for a California test case. Estimates are developed for producer's and consumer's surplus, values of vegetables and field crop...

The demand for U.S. feed grain is estimated using a six-equation simultaneous model. Four different utilizations of feed grain and feed grain price as well as the number of animal units fed are estimated. The reduced form of the model is used to provide forecasts of the endogenous variables for...

The measurement of income elasticities of demand for farm products, both individually and as an aggregate, is a fundamental problem which has concerned a considerable number of agricultural economists. Professor Milton Friedman's recent study, A Theory of the Consumption Function (3),1...