We model distribution, the delivery of goods to customers, as an activity governed by its own technology and undertaken by firms subsequently to production operations. We then use the model to investigate how distribution shapes innovation-driven economic growth. We contrast two canonical...

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...

The intellectual breakthrough contributed by the new growth theory was the recognition that investments in knowledge and human capital endogenously generate economic growth through the spillover of knowledge. Endogenous growth theory does not explain how or why spillovers occur. The missing link...