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Has the green revolution been sustained? The quantitative impact of the seed-fertilizer revolution in Pakistan revisited
Quantitative impacts of the Green Revolution on food production in the Pakistan Punjab are reviewed and the effects of different technologies on wheat yields over the past two decades decomposed. New quantitative evidence ...
Wheat rusts and the costs of genetic diversity in the Punjab of Pakistan
The theory of impure public goods is used to demonstrate why farmers may nor grow wheat cultivars with the socially desirable level of rust resistance. First, they may grow cultivars that are high yielding though susceptible ...
Varietal change in post-green revolution agriculture: Empirical evidence for wheat in Pakistan
Yield gains may continue to be the most important factor affecting varietal change in post-Green Revolution agriculture, but they are often not as spectacular as in the initial shift to high-yielding varieties. A survey ...