Community matters: heterogenous impacts of a sanitation intervention

Document type
Working Paper
Abramovsky, Laura; Augsburg, Britta; Luhrmann, Melanie
Institute for Fiscal Studies
Date of publication
6 November 2018
IFS Working Paper; WP18/28
Health Services, Community Development and Regeneration
Social welfare
Material type

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Study of the effectiveness of a community-level information and mobilization intervention to reduce open defecation (OD) and increase sanitation investments in Nigeria. The results of a cluster-randomized control trial in 246 communities, conducted between 2014 and 2018, suggest that average impacts are exiguous. However, these results hide important community heterogeneity, as the intervention has strong and lasting effects on OD habits in poorer communities. This result is robust across several measures of community socio-economic characteristics, and is not driven by baseline differences in toilet coverage.

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