Targeting Using Differential Incentives: Evidence from a Field Experiment
在尼泊尔的实地实验中，通过向健康外展工作者提供差异化激励（按招募客户族裔给予不同金额），发现2.5:1的激励比例使弱势族裔转诊概率提高11.6个百分点，且未导致转诊质量下降或总量减少。
In a field experiment in Nepal, we varied the amount of financial incentives provided to health outreach workers by the ethnicity of the client they recruited for a free sugar level assessment. We find that our differential incentive in the ratio of 2.5∶1, geared toward encouraging a disadvantaged referral, raises the chances of such a referral by 11.6 percentage points (95% confidence interval, 1.1–22.1). This effect translates to an incentive elasticity of referral of 0.2. There is no evidence that the outreach workers refer less sick individuals to benefit from higher financial incentives; nor do they target fewer overall referrals.