It is shown how one can effectively use cross-section data in modelling the change over time in aggregate consumption expenditure of a heterogeneous population. The starting point of our aggregation analysis is a dynamic behavioral relation on the household level. Based on certain hypotheses on...

We develop a Neo-Classical growth model with habit formation to exhibit an equilibrium non-linear relationship between aggregate consumption growth and income growth. We provide empirical evidence consistent with this relationship both for the U.S. and France, and we estimate this non-linear...