The major challenge of the 21st century is to achieve food security under, roughly, a doubling in food demand by 2050 compared to present, and producing the additional food under marked shifts in climatic risks and with environmentally sound farming practices. Sustainable intensification of...

While in the past, increased use of inputs and expansion of agricultural land accounted for a good part of agricultural growth in Africa, improvements in productivity will need to be a major driver of growth in the future. Thus, agricultural innovations are needed to sustainably increase...

This paper addresses the issue of environmental and ecological impacts of nutrient flows within and between countries by reviewing and presenting data on nutrient balances and global nutrient movements. The results for nutrient depletion in agricultural soils during 1996-1999 show that in most...

Why do some countries establish their own national eco-labeling programs and some do not? In this paper, we provide both theoretical arguments and empirical evidence suggesting that the answer to this question can shed new light on three questions that have taken center-stage in the trade and...