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An Estimation of Residential Water Demand Using Co-Integration and Error Correction Techniques

  • Martinez-Espineira, Roberto

In this paper short- and long-run price elasticities of residential water demand are estimated using co-integration and error-correction methods. Unit root tests reveal that water use series and series of other variables affecting use are non-stationary. However, a long-run co-integrating relationship is found in the water demand model, which makes it possible to obtain a partial correction term and to estimate an error correction model. The empirical application uses monthly time-series observations from Seville (Spain). The price-elasticity of demand is estimated as around -0.1 in the short run and -0.5 in the long run. These results are robust to the use of different specifications.

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 615.

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Date of creation: Apr 2005
Date of revision: Jan 2006
Handle: RePEc:pra:mprapa:615
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