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Distributional effects of water tariff reforms - an empirical study for Lima, Peru

[Arbeitspapier]

Barde, Julia Alexa; Lehmann, Paul

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Körperschaftlicher Herausgeber Helmholtz-Zentrum für Umweltforschung - UFZ
Abstract This study analyzes the affordability and distributional implications of water tariff reforms for poor water customers under means-tested tariffs in comparison to increasing block tariffs (IBTs) using volumetric targeting. For this purpose, we employ a unique data set for Lima, Peru. Our analysis reveals that from a pro-poor perspective, the performance of means-tested tariffs is mixed. On the one hand, they distribute more income to poor households than the IBTs, given the assumption that the overall revenue to the water supplier remains constant. On the other hand, the share of poor customers who actually benefit from water subsidies declines with means-testing. Nevertheless, means-tested tariffs clearly outperform IBTs in terms of excluding non-poor customers from being subsidized. These findings should be generalized with care as the performance of the tariff crucially depends on the cut-off value for cross-subsidies and the block prices chosen under volumetric targeting and on the design of the means-test. Our analysis further suggests that a proper assessment of individual welfare effects should take household size into account and rest on a broad set of affordability and distributional indicators. Interestingly, our results are relatively insensitive to the price elasticity of water demand.
Thesaurusschlagwörter Peru; water management; water; costs; poverty; subsidy; redistribution of income; pricing policy; developing country
Klassifikation Entwicklungsländersoziologie, Entwicklungssoziologie; spezielle Ressortpolitik
Sprache Dokument Englisch
Publikationsjahr 2013
Erscheinungsort Leipzig
Seitenangabe 39 S.
Schriftenreihe UFZ Discussion Papers, 14/2013
ISSN 1436-140X
Status Veröffentlichungsversion
Lizenz Creative Commons - Namensnennung, Nicht-kommerz., Weitergabe unter gleichen Bedingungen
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