Joshua holds a PhD in Agricultural Economics and Management from Lincoln University in New Zealand, an M.Sc. degree in Management Economics and Consumer Studies from Wageningen University in the Netherlands, and a B Sc. in Agricultural Economics from the Kwame Nkrumah University of Science and Technology in Ghana. He has worked on commodity value chains in the West Africa sub-region, venture capital investment in African small-scale enterprises, and in the wine industry in New Zealand. Before joining ILRI, Joshua had worked with SNV Netherlands Development Organisation and COWI on different projects funded by USAID, DANIDA and BMGF.