The complementarity of community-based water and sanitation interventions: evidence from Mozambique

Melinda Vigh, Chris Elbers and Jan Willem Gunning
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Melinda Vigh: Vrije Universiteit Amsterdam

No 20-017/V, Tinbergen Institute Discussion Papers from Tinbergen Institute

Abstract: We use data on a large-scale water and sanitation program in rural Mozambique, implemented between 2008 and 2013, to investigate the complementarities between a behavior-change-based community-led total sanitation intervention and a community water supply intervention. Our findings indicate that the sanitation intervention increased the adoption of handwashing with soap or ash by 11 percentage points, latrine ownership and use by 8 percentage points, and the use of improved water points by 15 percentage points (conditional on access). Combining the water supply and sanitation interventions increased the treatment effects on all three outcomes. However, we find that the effect on toilet ownership was in large part driven by the selective intervention allocation of the implementing NGOs. These effects are measured up to 4 years after the intervention.

Keywords: impact evaluation; sanitation; WASH; CLTS; correlated random effects (search for similar items in EconPapers)
JEL-codes: D04 I15 O12 (search for similar items in EconPapers)
Date: 2019-04-19
New Economics Papers: this item is included in nep-dev
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Persistent link: https://EconPapers.repec.org/RePEc:tin:wpaper:20200017

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