The costs of obtaining a given level of accuracy in estimating yields of tree fruit might be lowered by the use of photographs or supplemental information on fruiting potential. A small-scale experiment of this sort is described for peaches and apples. A procedure for evaluating the relative...

This article discusses the effect of an autocorrelated error structure on the interpretation of traditional significance tests, especially the t-test and R2 measure It emphasizes first-order serial correlation, a common and often serious problem that researchers using time series data may...

Many measurements of consumer welfare have been proposed to reflect the income equivalent of a welfare change Measures used in policy evaluations are compensating variation, equivalent variation, Paasche variation, Laspeyres variation, and consumer's surplus This research presents an empirical...

A generally accepted theory of firm behavior is incorporated into an abstract computerized simulation model capable of handling many different environments and organizations. This model provides a means of studying management problems using the simulation approach by providing, in most...

Since 1952, several technical bulletins' that deal with the demand and price structure for grains have been published by the United States Department of Agriculture. Research results from three of these bulletins can be used in an integrated way to consider possible effects of alternative...

Changes over time in consumer demand, influenced by advertising, may not be accounted for in traditional, fixed parameter explanatory and forecasting models. A distributed lagged advertising model was developed and tested with coefficients that had random and systematic adjustments. A variable...

As part of an expanded research program begun about 2 years ago by the Agricultural Estimates Division, Agricultural Marketing Service, pilot interview farm surveys were conducted in 10 Southern States during June 1954 and June 1955, and will be continued, in an effort to develop an improved...

Collection of data for economics studies frequently is a time-consuming and expensive process. This is particularly true of studies of plants that process and distribute agricultural products. During the last 2 years the Agricultural Marketing Service has been experimenting with a low-cost...