Heterogeneous consumption goods, sectoral change, and economic growth

This paper sets up a simple AK-type growth model with heterogeneous consumption goods. It is shown that the (overall) intertemporal elasticity of substitution, the saving rate, and the growth rate of income unambiguously increase in the course of economic development. Moreover, the model offers an intuitive explanation of sectoral change. It is demonstrated that there are a number of implications which are in line with the empirical evidence on economic growth and sectoral change.