The notion of price efficiency is discussed in the context of an optimal information market. Approaches for assessing price or market efficiency are examined, including temporal, spatial, and form-transformation paradigms. The interdependent nature of these paradigms is stressed. Finally, a...

Separate demand equations for national brand and private label frozen concentrated orange juice were estimated using a switching regression model. The results indicate that the demand for national brand frozen concentrated orange juice is more price responsive than the demand for private label...

The main objective of this paper is to test the hypothesis that consumer preferences for beef in the United States have been affected by structural change, which reduces to testing for parameter stability in estimated demand equations. To this end, alternative specifications of the demand...