"The authors develop an endogenous growth model that combines structural change with repeated product improvement. That is, the technologies in one sector of the model become not only increasingly capital-intensive, but also progressively productive over time. Application of the basic model to...

This paper provides an historical overview of both the evolution of the economic performance of the developing world and the evolution of economic thought on development policy. The 20th century was broadly characterized by divergence between high-income countries and the developing world, with...