ArticleEnvironmental health insights2026
Predicting Sanitation Behaviors: Comparison of Willingness to Pay Techniques for Sanitation Services in Urban Dhaka, Bangladesh.
Article in Environmental health insights, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Improving urban sanitation requires understanding user preferences and willingness to pay (WTP) for sewer connections. This study evaluates WTP for sanitation attributes in low-income communities (LICs) of Dhaka, Bangladesh, comparing contingent valuation (CVM) and hedonic pricing (HPM) methods. A cross-sectional study was conducted in 5 LICs, surveying 1000 households and conducting spot checks of toilet facilities. WTP was analyzed using logistic regression models for CVM and generalized linear models (GLM) for HPM, adjusting for socioeconomic factors and cluster-level correlations. The estimated WTP for a sewerage connection varied substantially between the valuation methods. The CVM produced a mean WTP of BDT 87 (95% CI: 79, 95), while the HPM yielded a significantly lower mean WTP of BDT 74 (95% CI: -223, 226). CVM assessments revealed key differences between landlords and tenants. Higher-income individuals were more willing to pay a monthly sewerage bill, but this willingness sharply declines as the bill amount increases, especially among tenants. Over 90% of respondents were willing to pay, considering their neighbors' agreements and the health benefits for their families. Results from the HPM showed that significant determinants of monthly rental costs included the number of rooms in the household, where each additional room increased WTP by 1549 units (
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