Journal
ENERGY ECONOMICS
Volume 59, Issue -, Pages 290-299Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.eneco.2016.06.017
Keywords
Power supply; Scale economies; Technical change; Translog function; Seemingly unrelated regressions; Panel model
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This paper examined the cost structure of the electricity generation companies in Brazil during the period 2000-2010 by using a translog cost function that imposes no restrictions on production technology and allows for the existence of non-homotheticity. The hypothesis that economies of scale are a typical feature of the generation market in Brazil and, in general, are not exhausted at lower levels of production is not rejected. This result supports the vision that indivisibilities restrict efficiency gains from free-market competition in the Brazilian electricity generation and most of the last restructuring in the industry regulation was based on this assumption. Furthermore, over the sample period, technological progress led to cost reductions in electric power supply. These technological improvements take the form of both a neutral technological effect as well as a non-neutral fuel effect, which prevails over the capital and labor saving technical changes. (C) 2016 Elsevier B.V. All rights reserved.
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