DJOHA is a Ph.D. scholar in the Department of Economics at Maroua University. Her research interest is in developmental economics with a special focus on issues related to energy, firms & institutional quality. Her work focuses on evaluating the temporal dynamics of the effects of electricity shortages on firms productivity in Sub-Saharan Africa. Currently she is working on the mediation of institutional quality on the relationship between electricity shortages & firms productivity in Sub-Saharan Africa.