Truthfulness Compensation in Mechanism Design
RCTReview
Community peer evaluations suffer from strategic misreporting when participants attempt to direct resources toward family and friends [1, 11]. Without an explicit counter-incentive for accuracy, social ties dominate survey responses, preventing lenders from acquiring honest information [2, 11].
Picture this
Imagine a witness in court who is tempted to lie to protect a friend, but is offered a small reward if testimony matches verifiable facts. By offering peer evaluators a modest financial bonus tied to the objective accuracy of predictions, evaluators weigh the immediate cash reward for honesty against the social temptation to favor friends, restoring truthful information flow [1, 11, 12].
What the evidence says
Small monetary payments for accuracy doubled reporting accuracy under no-stakes conditions and improved reporting accuracy by over 100% under high-stakes conditions at an added cost of only INR 40 (US$0.70) per loan [11, 14].
- Who was studied
- 1,345 households in 274 peer groups of five microentrepreneurs in Amravati, Maharashtra, India [5, 6].
- How
- Randomized evaluation assigning peer groups to receive accuracy-calibrated compensation of INR 100 (US$1.70, equivalent to two-thirds of average daily wage) versus a lump-sum compensation regardless of accuracy [12, 13].
What to do
Offer microentrepreneurs small, accuracy-calibrated monetary incentives when completing peer evaluation surveys to ensure truthful data collection.
From the source
"Conversely, the monetary payments substantially improved the accuracy of reports by over 100 percent." [11]
Impact_of_Community_Information_in_Identifying_High_Ability_Microentrepreneurs.pdf