The elasticity of substitution and labour-displacing technical change in post-apartheid South Africa
This paper uses normalized constant elasticity of substitution production functions to estimate the elasticity of substitution and labour-augmenting technical change in South Africa over the period 1994-2012. We find elasticities of 0.6-0.9 and positive labour-augmenting technical change, which results in an increase in capital’s income share relative to labour. More broadly, we find total factor productivity (TFP) growth rates of between 1 and 2 per cent across industries, although we find no TFP growth in the mining sector. We also find that the sector with the highest TFP growth—agriculture—achieved this through shedding labour while steadily increasing output.