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...

This paper proposes that the time-series data on consumption, income, and interest rates are best viewed as generated not by a single representative consumer but by two groups of consumers. Half the consumers are forward-looking and consume their permanent income, but are extremely reluctant to...