This paper shows that there exists a relatively simple demand model that is consistent with utility maximization, and has nested within it both the almost ideal demand system and translog models. This model is exactly aggregated, then estimated using aggregate U.S. demand data. The results are...

Let "y" be a vector of endogenous variables and let "w" be a vector of covariates, parameters, and errors or unobservables that together are assumed to determine "y". A structural model <formula format="inline"> <simplemath>"y"&equals;"H"("y", "w") </simplemath> </formula> is complete and coherent if it has a well-defined reduced form, meaning that for any...

This paper characterizes all utility derived demand systmes having Engel curves that are linear in both income and an arbitrary function of income. This class encompasses virtually all utility derived demand systems that have been estimated in the past using ag gregate data with explicit...