“Modeling Feedback between Economic and Biophysical Systems in Smallholder Agriculture in Kenya: The Crops, Livestock and Soils in Smallholder Economic Systems

a Pitzer College, 1050 N. Mills Avenue, Claremont, CA 91711, USA b Cornell University, Applied Economics and Management, 315 Warren Hall, Ithaca, NY 14853 USA c World Vision Canada, 1 World Drive, Mississauga, Ontario L5T 2Y4, Canada d Cornell University, Crop and Soil Sciences, 909 Bradfield Hall , Ithaca, NY 14853 USA e World Argoforestry Centre (ICRAF), P.O. Box 30677-00100 GPO, Nairobi, Kenya f Cornell University, Ithaca, NY 14853 USA g Cornell University, Applied Economics and Management, 315 Warren Hall, Ithaca, NY 14853 USA h University of Tasmania, Agricultural Science, Private Bag 54, Hobart, Tasmania 7001 i Cornell University, Animal Science, 149 Morrison Hall, Ithaca, NY 14853 j Cornell University, Earth and Atmospheric Science, Bradfield Hall, Ithaca, NY 14853