challenges have become more pronounced, and the need for more comprehensive, complex, participatory and capable innovations …

innovations are needed to sustainably increase productivity, i.e. output per unit of all inputs, while maintaining environmental … quality and resources. Such innovations require enhanced investments in research and development. This study identifies … potentials in agriculture and food systems in Africa for enhanced food security. For maximum impact, the Special Initiative "One …

from agriculture. Many rural people in the developing world are poor, and conversely, most of the world's poor people … inhabit rural areas. Agriculture also accounts for a significant fraction of the economic activity in the developing world … that changes affecting agriculture have large aggregate effects. Thus, it seems reasonable that agricultural productivity …

suitable land, reflecting the fact that land suitable for agriculture is not necessarily suitable for the most caloric …