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Rôle de la tarification dans une gestion efficace des ressources en eau : application à la demande résidentielle en eau potable des réseaux publics slovaques.

Abstract : This study analyzes the effects of pricing upon the evolution of residential demand of water provided by public networks. The applied part of this study deals with the Slovak Republic, an economy in transition. The Slovak authorities recently decided to change the way of managing the public networks of water, symbolised until now by marginal cost pricing of this firm in a natural monopoly position generating losses, although this former pricing policy (thanks to the implementation of a cross-subsidies policy between groups of users) was meant to protect the residential consumers from the effects of transition. The econometrical analysis of Slovak residential water demand, carried out on two different samples (1994-1998 and 1999-2001), and using specific methods with panel data, reveals a low coefficient of price elasticity for each of them (respectively -0.21 and -0.41) in spite of a consistent rise. The first sample nevertheless reveals also a negative but surprisingly more important coefficient of income elasticity (-0.53), whose origin could lie in the fact that the fast growth in the general standard of living would permit the households to renew a stock of electric household appliances which use less water. The analysis, also carried out in terms of income class reveals through both samples that the price elasticity of demand seems to decrease in direct relation to the level of income, thus meaning that the most modest consumers are the most sensitive to strong variations of prices, which originally aimed to balance the losses faced by the national public network company. These results are in contradiction with those drawn from the theoretical analysis upon the reactions of multifunction goods' demand, but which has been inspired by the observations based on the individual behaviours within a traditional market economy. Changes in water pricing policy is then potentially likely to worsen the social inequalities, without managing the resource in a more sustainable way and without developing the infrastructures in the most neglected rural areas.
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https://tel.archives-ouvertes.fr/tel-00200159
Contributor : Laurent Dalmas <>
Submitted on : Thursday, December 20, 2007 - 2:27:38 PM
Last modification on : Friday, January 10, 2020 - 3:42:18 PM
Long-term archiving on: : Monday, April 12, 2010 - 8:39:51 AM

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Laurent Dalmas. Rôle de la tarification dans une gestion efficace des ressources en eau : application à la demande résidentielle en eau potable des réseaux publics slovaques.. Economies et finances. Université Nice Sophia Antipolis, 2003. Français. ⟨tel-00200159⟩

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