The one-sector Solow-Ramsey model is the most popular model of long-run economic growth. This paper argues that a two-sector approach, in which technological progress in the production of durable goods exceeds that in the rest of the economy, provides a far better picture of the long-run...

This paper investigates the determinants of real interest rates at world and country level. The starting point is the idea that the real interest rates reflect the interaction of desired saving and planned investment, using the framework developed by Barro and Sala-i- Martin (1990) and Barro (1992).