Abstract
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The paper reports an application of the generalized Working model, as proposed by Laitinen-Theil-Raparla (1981) to Australian household expenditure data, to obtain estimates of income elasticities for four types of energy: electricity, gas, other fuels and petrol. The evidence indicates some gain in the Laitinen-Theil-Raparla model but this gain is insufficient, in terms of the Atkinson (1973) test, to significantly discriminate it from the linear expenditure system. © 1983.