The Kuznets inequality-development hypothesis can be tested with time-series data rather than the cross-section analyses found in earlier literature. Single-country time-series analysis cannot be done without addressing endogeneity between output and inequality. South Africa has been under-researched in this area due to a lack of data. Recent data released by the Presidency of South Africa makes such analysis possible. Besides, the use of a single inequality index in such a multiracial society is likely to capture only average effects.
In this research article, we investigate the improved modelling ability and the outstanding policy advocacy of infusing health and education in sectoral growth equations of the South African economy. Our findings not only include improved and dependable modelling results but also provide distinct estimates of the returns on investment in health and education per sector using Iterative Seemingly Unrelated Regressions techniques. Additionally, this paper provides a theoretical description of the productivity effects of HIV/AIDS using sectoral equations.