1. International Science and Technology Practice and Policy Center, Department of Applied Economics, University of Minnesota, St. Paul, MN 55108, USA.
2. Stakman-Borlaug Cereal Rust Center, University of Minnesota, St. Paul, MN 55108, USA.
3. Commonwealth Scientific and Industrial Research Organization, Canberra, ACT 3190, Australia.
4. Department of Agricultural Economics, Extension and Rural Development, University of Pretoria, Pretoria 0028 South Africa.
5. E. H. Graham Center, Charles Sturt University Wagga Wagga, New South Wales 2678, Australia.
6. Australian Cereal Rust Control Program, Plant Breeding Institute, University of Sydney, Eveleigh New South Wales 2015, Australia.
7. International Maize and Wheat Improvement Center (CIMMYT), El Batán, CP 56130, México.
8. Centre of Excellence for Environmental Decisions, University of Queensland, St. Lucia, Queensland 4072, Australia.