1. Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
2. Center for Agricultural and Rural Development, Iowa State University, 518 Farmhouse Lane, Ames, Iowa 50011, United States
3. Iowa State University, 518 Farmhouse Lane, Ames, Iowa 50011, United States
4. Cornell University, 616 Thurston Ave, Ithaca, New York 14853, United States
5. University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States