Economics of Pharmaceutical Crops: Potential Benefits and Risks for Farmers and Rural Communities
The report provides an assessment of the issue—identifying the sources of potential benefits, qualitatively estimating the magnitude of these benefits (it is too early for quantitative analysis), and identifying those who may or may not benefit from pharma crops and under what circumstances.
Link
http://www.ucsusa.org/food_and_environment/genetic_engineering/economics-of-pharmaceutical-crops.html