Integrated assessment of the determinants of the MAize yield Gap in Sub-Saharan Africa: towards farm INnovation and Enabling policies 


IMAGINE is a project funded by the DEGRP programme, the DFID-ESRC Growth Research Programme. DEGRP funds research in the categories Finance, Innovation and Agriculture, and in Call 2 19 projects were funded. IMAGINE started in January 2015 and runs for 3 years. The aim of this project is to identify the key bio-physical and farm and crop management factors that determine the maize yield gap in SSA and how these are related to existing institutional, infrastructural, socio-economic and policy constraints. The project will focus on Ghana and Ethiopia.

Partners in the project are:

  • Wageningen University and Research Centre, Plant Production Systems Group (WUR-PPS), the Netherlands:  Prof. Martin van Ittersum (Principal investigator; PI), dr. Pytrik Reidsma, dr. Katrien Descheemaeker, MSc. Joost Wolf, dr. Lenny van Bussel, MSc. Joao Silva, MSc. Wim Paas, MSc. Eskender Beza
  • Wageningen University and Research Centre, Agricultural Economics Institute (WUR-LEI), the Netherlands: dr. Michiel van Dijk, dr. Roel Jongeneel, dr. Jeff Powel, MSc. Tomas Morley
  • Agribusiness and Systems Innovation Unit, Institute of Agricultural Research, University of Ghana, Legon, Ghana: Dr. Samuel Adjei-Nsiah, Dr. Clement Akotsen 
  • Institute of Statistical, Social and Economic Research (ISSER), University of Ghana, Legon, Ghana: Dr. Felix Ankomah Asante 
  • Ethiopian Economic Policy Research Institute (EEPRI), Ethiopian Economics Association, Ethiopia: Dr. Assefa Admassie
  • International Maize and Wheat Improvement Centre (CIMMYT), Ethiopia: Dr. Kindie Tesfaye Fantaye 


Please, use your login credentials to access the datasets and documents.

Please, find a flyer here for a quick overview of the project.



For comments and/or questions about the Imagine site, please contact Marcel Lubbers (marcel.lubbers@wur.nl).