Roger A. Longhorn

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Contents Abstract 1. Introduction 2. Policy context 3. Demonising and un-demonising charging 4. Demonising charging as the imposition of double taxation 5. Charging as risk management and capacity enhancement 6. Charging as a contest over market dominance and unfair competition 7. Conclusions References Author details Abstract Geographic information (GI)(More)
The International Maize and Wheat Improvement Center (CIMMYT ® ; www.cimmyt.org) is an internationally funded, nonprofit, scientific research and training organization. Headquartered in Mexico, CIMMYT works with agricultural research institutions worldwide to improve the productivity, profitability, and sustainability of maize and wheat systems for poor(More)
The International Maize and Wheat Improvement Center (CIMMYT ® ; www.cimmyt.org) is an internationally funded, nonprofit, scientific research and training organization. Headquartered in Mexico, CIMMYT works with agricultural research institutions worldwide to improve the productivity, profitability, and sustainability of maize and wheat systems for poor(More)
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