Demand for self‐tests: Evidence from a Becker–DeGroot–Marschak mechanism field experiment
通过肯尼亚66家诊所/药店的822名参与者田野实验，使用激励相容的BDM机制测度HIV自检支付意愿，发现低价时需求大且价格弹性高，为自检推广政策提供依据。
Self-tests offer one approach for reducing frictions underlying low demand for preventive health inputs, yet there is little evidence on demand for self-tests. We used the Becker-DeGroot-Marschak mechanism-an incentive-compatible approach-to elicit exact willingness to pay (WTP) for HIV self-tests in a field experiment with 822 participants at 66 health clinics/pharmacies in Kenya. Our analysis reveals substantial demand at low prices and highly elastic demand at a wide range of prices above this range. We find few participants with nonpositive WTP. We examine correlates of WTP and discuss policy and research implications of our findings.