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2015
- handle: 10670/1.3xe6bz
- halshs: halshs-01102007
- doi: 10.1080/00036846.2014.1002896
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info:eu-repo/semantics/altIdentifier/doi/10.1080/00036846.2014.1002896
Mots-clés
quaterly data residential water demand seasonal integration and cointegration increasing block tariffs C - Mathematical and Quantitative Methods/C.C2 - Single Equation Models • Single Variables/C.C2.C22 - Time-Series Models • Dynamic Quantile Regressions • Dynamic Treatment Effect Models • Diffusion Processes Q - Agricultural and Natural Resource Economics • Environmental and Ecological Economics/Q.Q2 - Renewable Resources and Conservation/Q.Q2.Q25 - WaterSujets proches
Price policy, Industrial Retail pricing Price policyCiter ce document
Younes Ben Zaied et al., « Modelling seasonality in residential water demand: the case of Tunisia », HAL-SHS : économie et finance, ID : 10.1080/00036846.2014.1002896
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Résumé
This article proposes to model seasonal patterns of residential water demand using the techniques of seasonal integration and cointegration. The methodology is applied to quarterly aggregate time series data for Tunisia (1980-2007), applying the same increasing, multi-step pricing scheme in the whole country. First, a seasonal cointegration analysis demonstrates the relevance of a pricing policy that increases the size of the lower consumption block in summer. Second, the non-seasonal cointegration analysis reveals a relatively high price elasticity for the highest consumption block. Therefore, we also propose to increase the tariff progressivity to promote water savings. This modified pricing scheme will help to achieve goals of environmental protection and social equity.