Mr David Mosaka is the Chief Ratings Officer (CRO) at Sovereign Africa Ratings. He is proficient in both theory and quantitative economics. He has researched topics in international economics, development economics, resource economics, public finance, monetary economics, and transport economics using his expertise in economic modelling. His research interests include the environment, energy studies, international aid, tourism, commerce, investment, and model the entire economy. He is recognised as one of the region's up-and-coming authorities in input-output and social accounting matrix (SAM) modelling. He is a co-author of the South African Cost Benefit Analysis Manual. Additionally, he has worked as a Cost Benefit Analysis (CBA) practitioner on numerous multidisciplinary projects where CBA concepts and modelling tools were used to assess the projects' financial and economic sustainability. David was on the board of Export Credit Insurance Corporation previously (ECIC). Mr Mosaka belongs to the South African Economic Society (ESSA). David graduated from UNISA with a Bachelor of Commerce with Honours in Economics and Econometrics.