In this paper, consumer demand for food diversity is measured by the entropy and Simpson indices for budget shares. Results show that consumer demand for food diversity is related to total food expenditures and household size and composition.

In this study, both the Rotterdam model and the double logarithmic model were used to estimate the demand parameters for fruit beverages. The results show that: (1) under the conditions of block-independence and predetermined price changes, the Slutsky matrix for fruit beverages is symmetric and...

The differential demand system or Rotterdam model is extended to include lagged consumption through translation parameters, allowing habit and inventory effects. Applications of the model to annual U.S. expenditure and weekly juice sales data illustrate the importance of the time interval of an...