"This paper reports findings of a CGIAR research project including seven case studies of different types of agricultural research: aggregate investments in agricultural research in China and India; rice, vegetable, and fishpond technologies in Bangladesh; soil fertility replenishment in Kenya;...

Faced with limited resources and the need to feed 90 million more people every year, governments and donors want to know whether they should invest in regions with inherent potential to be highly productive, or in less-favored areas where large numbers of poor farmers live and increasingly...