Sanitation marketing in Nigeria
通过随机对照试验评估尼日利亚农村卫生设施营销干预的效果，发现该干预增加了企业生产和销售新型马桶，但未提高家庭马桶拥有率，原因可能是销售激励不足和家庭负担能力有限。
We evaluate the effectiveness of a sanitation marketing intervention aimed at increasing the supply of improved toilet products by local businesses and the household demand for toilets in rural Nigeria. Results from a randomized controlled trial show that treated businesses were more likely to produce and market the new toilet model and to engage in the sales of sanitation products more generally. However, we find no discernible impact on household toilet ownership rates. Evidence from interviews with sales agents employed by the business and responsible for about half of the sales suggest that inadequate incentives for sales agents and household affordability constraints may explain these results.