After graduating from the Competition and Market Regulation master's program in 2013, Thembalethu returned to South Africa and continued to work as a competition economist for Genesis Analytics, a leading competition consulting firm. One year later, she moved to the Competition Commission of South Africa, where she is currently Senior Economist.
"I was lucky enough to work on an abuse of dominance complaint involving a pay - TV broadcaster in South Africa, Kenya, Botswana and Namibia. This project allowed for me to travel immensely across Africa (which was a dream come true) and gain exposure into the mechanisms of television broadcasting. This project was challenging as not only was there a lot to learn within a short space of time but conducting an assessment of the likely competition effects across each country proved to be slightly difficult due to the fact that each country had its’ own competition and policy regulation framework in which we had to conduct our assessment. This project also provided an opportunity to test the competition concepts and theoretical models learnt as we had to hypothesise and prepare a defence on the various theories of harm which would be investigated by the authorities."