We analyze a multi-sector growth model with directed technical change where man-made capital and exhaustible resources are essen tial for production. The relative profitability of factor-specific innovations endogenously determines whether technical progress will be capital- or...

We study the general equilibrium properties of two growth models with overlapping generations, habit formation and endogenous fertility. In the neoclassical model, habits modify the economy's growth rate and generate transitional dynamics in fertility; station- ary income per capita is...