The Potential Benefits of Hilmer and Related Reforms: Electricity Supply

This article examines the impact of the elimination of x-inefficiency in the Australian electricity supply industry using a computable general equilibrium (CGE) model of the Australian economy. Data envelopment analysis and a stochastic production frontier model are applied to measure x-inefficiency in the electricity industry. The potential increase in total factor productivity resulting from microeconomic reform is introduced into the CGE model as a factor-augmenting technological change. The model is used to measure the macroeconomic effects of microeconomic reform of the electricity industry. The Monash model is also used to replicate the results of earlier studies by the Industry Commission (1995) and Quiggin (1997) and thereby to provide a basis for comparing the three sets of results. The results of the current study imply that the impact of microeconomic reform on economic growth could well be significant if only a small proportion of the benefits were to be reflected in terms of an increase in aggregate employment.