This study incorporates quality into the Rotterdam demand system based on utility theory. Quality was modeled through its impact on marginal utility via perceived prices, following theoretical work by Basemann and Barten, among others. Results show that the price elasticity of fresh grapefruit...

Asymmetry is introduced into the Rotterdam model by allowing the income response to depend on whether real income increases or decreases. Price responses, in turn, are asymmetric through the general and specific substitution terms. Analysis of data on food and three other broadly defined goods...

The paper focuses on separability in the almost ideal demand system (AIDS) in time series analysis. The AIDS approximation based on Stone's price index is specified in terms of the Rotterdam model and block additivity is imposed for illustrative purposes. A generalization to other types of...

The NHANES 2003-04 data show that OJ and GJ users drank less than an 8-ounce serving per day in the two-day recalls and about 30% of the Americans drank OJ in the two-day recalls – ranked sixth. The NHANES 2003-04 data also show that less than 1% of the Americans drank GJ in the two-day...

This report provides fresh grapefruit import data regarding European Union 15 (EU-15) and an in-depth look into the share changes for fresh grapefruit imports by country of origin during the period from 1989 through 2006. The Rotterdam demand system was used to study the relationship among the...

Tropicana introduced a new package design as part of its advertising and branding campaign, with the theme “Squeeze it’s a Natural in January 2009. Sales of the Tropicana Pure Premium line plummeted 20% between the January and February from the same period a year ago. Tropicana had changed...