The validity of the assumptions underlying the 21-Meal-Nutritionally-EquivalentPerson (21-MNEP), an adjustment procedure employed In nutritional analyses of U S Department of Agriculture food consumption survey data, IS examined Some assumptions are inconsistent With actual nutrient Intake data...

Stochastic coefficients models can provide accurate agricultural secto forecasts and useful policy analysis Coefficient variation may occur for many reasons including aggregating over micro units, omitting variable, using an incorrect functional form, and allowing for a dynamic economic theory...

In this final article of our three-part series, we demonstrate why stochastic coefficients models are well suited to predict future variables We analyze the forecasting problem and consider various criteria of prediction If a forecaster must choose one from among several coherent predictors,...

Many econometric analyses include dependent variables constrained to the interval between zero and 1 Under such conditions, simple regression procedures break down Several alternative stochastic models which avoid this problem can be defined depending on the assumed error structure Two...

Two approaches, a flexible accelerator model and a stochastic coefficients alternative, are used to estimate the structure of aggregate agricultural investment. Structural estimates of the adjustment rates for each model are similar. The stochastic coefficients model, however, performs better in...

A dynamic system of cost-share equations for agricultural inputs is used to test for the presence of input disequilibrium. This dynamic system incorporates a disequilibrium adjustment process into input-share equations derived from a translog cost function. The disequilibrium process is...

Secular trends in health outcomes related to dietary quality have changed substantially over the past three decades. The objective of this study is to decompose changes in dietary quality over 1977-2008 into the biological effects of age, contemporaneous effects of time period and group...

Data from the U.S. Department of Agriculture’s 1994-96 and 1998 Continuing Survey of Food Intakes by Individuals (CSFII) are used to describe pork consumption patterns as well as to estimate a censored demand system for pork cuts. The descriptive analysis fills the void about basic...