Schistosomiasis is a serious health problem in many parts of Africa which is linked to poor water quality and limited sanitation resources. We administered a discrete choice experiment on water access and health education in rural Uganda, focussing on interventions designed to reduce cases of the disease. Unlike previous studies, we included a payment vehicle of both labour hours supplied per week and money paid per month within each choice set. We were thus able to elicit both willingness to pay and willingness to work for alternative interventions. Respondents exhibit high demand for new water sources. From the random parameter model, only households with knowledge about water-borne parasites are price sensitive and exhibit willingness to pay values. Through a latent class model specification, higher income respondents exhibit higher willingness to pay values for all programme attributes; however, lower income participants have higher willingness to work values for certain new water sources. We found a shadow wage rate of labour that is between 15 and 55% of the market wage rate.

中文翻译：

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非货币计价器：改变乌干达健康干预选择实验中的支付工具

血吸虫病是非洲许多地区的严重健康问题，与水质差和卫生资源有限有关。我们在乌干达农村开展了一项关于供水和健康教育的离散选择实验，重点是旨在减少疾病病例的干预措施。与之前的研究不同，我们在每个选择集中包括了每周提供的工时和每月支付的钱的支付工具。因此，我们能够引出支付意愿和为替代干预工作的意愿。受访者表现出对新水源的高需求。从随机参数模型来看，只有了解水生寄生虫的家庭才对价格敏感并表现出支付价值的意愿。通过一个潜在的类模型规范，较高收入的受访者表现出更高的愿意为所有项目属性支付价值；然而，较低收入的参与者更愿意为某些新水源工作。我们发现劳动力的影子工资率介于市场工资率的 15% 到 55% 之间。