Financial liberalisation, consumption and debt in South Africa

South Africa experienced substantial rises in the ratios of consumption and household debt to income from 1983, for which conventional explanations in terms of income, income expectations, interest rates and wealth prove inadequate. This paper emphasizes the role of substantial financial liberalization, which is of interest for two reasons. The first is to help understand South Africa’s low saving rate, an endemic problem. The second is that unlike the UK, Scandinavia, Mexico and other countries, South Africa’s financial liberalization occurred without an asset price boom, thus illuminating the direct role of financial liberalization. Previous attempts to model financial liberalization are not fully satisfactory. Our methodological innovation is to treat financial liberalization as an unobservable, proxied by a spline function, and entering both consumption and debt equations, which are jointly estimated. We also clarify the multi-faceted effects of financial liberalization on consumption. The comprehensive solved-out consumption function uses our own constructed set of personal wealth estimates at market value and income forecasts from a forecasting equation (allowing underlying macro-fundamentals to enter the model). The empirical results corroborate the theory in the paper, confirming the importance for consumer spending of extensive financial liberalization, of fluctuations in a range of asset values and asset accumulation, and of income expectations. Results suggest that households largely pierce the corporate veil. The paper also throws important light on the monetary policy transmission mechanism in South Africa.