FLEXIBLE COST FUNCTION ESTIMATES FOR A GAS AND FUEL CORPORATION IN AUSTRALIA

Tatsuo Kinugasa

Review of Urban & Regional Development Studies, 1997, vol. 9, issue 2, 103-114

Abstract: This paper reviews and empirically tests the available evidence concerning economies of scale and technological change at Australian Gas Limited of New South Wales (AGL). a gas and fuel corporation. Since energy corporations are considered to need scale economies, they are regulated 'n both developed and developing countries. In keeping with the trend of deregulation stemming from the beginning of the 1980s in Western countries, many kinds of public corporations have been privatized and deregulated. Energy corporations are not an exceptional case, but very little evidence on this industry has been reported so far. From empirical tests, it is shown in a trans†log†type cost function that AGL has scale economies. the degree of which increased after the corporation changed its energy source from coal oil to liquid natural gas. Moreover, from the results of the trans†log cost function including technological change, a Hicksian neutral type technical progress exists. In a Hicksian non†neutral type, stock†intensive technical progress exists. while labor productivity deterioates. Energy productivity is not significant.

Date: 1997
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