Theo, in order to become an economist according to KNUST you need to first get a Bachelors degree(BSc) (Lower Division) or better from a recognized tertiary institution in the following disciplines: BA/BSc. Economics, BA/BSc. Economics (with Finance, Mathematics, Statistics, Geography, Law, Sociology, Political Science, and History); Bachelor of Business Administration, BSc. Mathematics/Statistics/Engineering /Physics/Actuarial Science/ Environmental Science/ Land Economy/Natural Resource Management; BA/BSc. Geography/Geography and Resource Development/Geography and Rural Development/Geography and Regional Planning; BSc./BA Development Studies; and related disciplines. Admission is subject to passing an interview then you get a Masters degree in economics and a PHD ultimately. You must be a person that likes research a lot. To know if you really want to just help your lecturers who are economists to perform their researches.