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Modeling producer responses with dynamic programming: a case for adaptive crop management
Authors:David Boussios  Paul V Preckel  Yigezu A Yigezu  Prakash N Dixit  Samia Akroush  Hatem Cheikh M'hamed  Mohamed Annabi  Aden Aw‐Hassan  Yahya Shakatreh  Omar Abdel Hadi  Ayed Al‐Abdallat  Jamal Abu El Enein  Jamal Ayad
Abstract:Past research found agricultural producers’ conditional responses during the growing season are important adaptations to weather and other stochastic events. Failing to recognize these responses overstates the risks confronting producers and understates their ability to respond to adverse circumstances. Dynamic programming (DP) provides a means for determining optimal long‐term crop management plans. However, most applications in the literature base their analysis on annual time steps with fixed strategies within the year, effectively ignoring conditional responses during the year. We suggest an alternative approach that captures the strategic responses within a cropping season to random weather variables as they unfold, reflecting farmers’ ability to adapt to weather realizations. We illustrate our approach by applying it to a typical cereal farm in Karak, Jordan. The results show that including conditional within‐year responses to weather reduces the frequency of fallowing by 23% and increases expected income by 9%.
Keywords:C61  Q12  Q57  Crop rotation  Stochastic dynamic programming  Systems analysis  Risk  Bioeconomic
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