Can Productivity Growth in Agriculture be Continued?

A number of very careful econometric studies have been interpreted as showing that publicly funded research and development conducted by private firms has had little discernable impact on firm level profits or productivity. In contrast historical studies have shown that military and...

There have been substantial increases in our understanding of the process of agricultural development over the last half century. Yet the productivity gap between developed and developing countries has not narrowed. In this paper I assess (a) the resource and environmental constraints and (b)...