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...

Empirical studies show that pollution is one of the world's most significant causes of premature death. However, despite its importance macroeconomics still largely neglects this negative externality. To fill the gap, we build a model where productivity growth, emissions, mortality and fertility...

Wealth creation driven by R&D investment and wealth dilution caused by disconnected generations interact with households' fertility decisions, delivering a theory of sustained endogenous output growth with a constant endogenous population level in the long run. Unlike traditional theories, our...

We study a two-phase endogenous growth model in which the adoption of a backstop technology (e.g. solar) yields a sustained supply of essential energy inputs previously obtained from exhaustible resources (e.g. oil). Growth is knowledge-driven and the optimal timing of technology switching is...

An established result of the endogenous growth literature is that competitive equilibria in expanding-varieties models are suboptimal due to the rent-effect: monopolistic pricing drives the equilibrium quantity of each intermediate below the efficient level, implying that it is optimal to...