Diakité, Daouda and Thomas, Alban (2013) Structure des coûts d’alimentation en eau potable : une analyse sur un panel d’unités de production ivoiriennes. Recherches Économiques de Louvain, 79 (1). pp. 83-114.

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Identification Number : 10.3917/rel.791.0083


This paper analyzes the structure of water supply costs in Côte d’Ivoire municipalities using a panel of water utilities. Considering water utilities as multi-output monopolies providing two goods (billed water and lost water), we estimate a multi-output translog cost function using duality between the production and cost functions. We compute several measures of return to reveal that at the mean level, these water utilities operate with a constant return to scale. However, when we rank our production units by size using various criteria, it is clearly more profitable for the water operator to increase its production and connections for most small and medium utilities. Moreover, the presence of significant economies of scope reveals that up to a point, the jointly production of the two goods is more beneficial than improving network return. Finally, the estimated marginal cost at the mean level is higher than the marginal prices of the lowest levels in the pricing system.

Item Type: Article
Language: French
Date: 2013
Refereed: Yes
Uncontrolled Keywords: water utility, service d’eau potable, multi-output translog cost fonction, fonction de coût translog multi-produits, panel data, données de panel
JEL Classification: C33 - Models with Panel Data
D24 - Production; Cost; Capital and Total Factor Productivity; Capacity
Q25 - Water
Divisions: TSE-R (Toulouse)
Site: UT1
Date Deposited: 16 Mar 2015 14:54
Last Modified: 02 Apr 2021 15:49
OAI Identifier: oai:tse-fr.eu:28874
URI: https://publications.ut-capitole.fr/id/eprint/16656
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