In the light of Africa’s palpable deficit in public infrastructure, we use System GMM to estimate a model of economic growth augmented by an infrastructure variable, for a panel of 45 Sub-Saharan African countries, over the period 2000-2011. We find that it is the spending on infrastructure and increments in the access to infrastructure that influence economic growth and development in Sub-Saharan Africa.
National Government Expenditures and Related Policies: Infrastructures; Other Public Investment and Capital Stock
South Africa is a water-stressed country that over a protracted period has suffered from poor water service delivery. The major problems are inefficient operations, lack of capacity in spending allocated budgets, unclear management structures, and a long term decline in capital expenditure. Economists have long argued that private investment will bring good fiscal control and efficient structures and improve service delivery. However, there may be trade-offs between this improved economic efficiency and the necessity to pursue more egalitarian social outcomes.
The paper uses a 52-country panel-data for the period 1980-2002 to estimate demand for electricity and telecom services and, based on these estimates, project investment needs in South Africa through 2010 for two growth scenarios. Projections of average annual investment needs in electricity and telecom for the current growth scenario (3.6% per annum) are of the order of 0.2% and 0.75% of GDP, respectively. An alternative, accelerated growth scenario (6% per annum) implies approximate doubling of investment needs in these sectors.