Journal
HEALTH SERVICES RESEARCH
Volume 46, Issue 5, Pages 1663-1674Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1475-6773.2011.01264.x
Keywords
Incentives; response rate; surveys; lottery; behavioral economics
Funding
- Greenwall Foundation
- Leonard Davis Institute of Health Economics Center for Health Incentives
- University of Pennsylvania
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Objective. To compare the effects of lottery-based and fixed incentives on clinicians' response to surveys. Data Sources. Three randomized trials with fixed payments and actuarially equivalent lotteries. Study Design. Trial 1 compared a low-probability/high-payout lottery, a high-probability/low-payout lottery, and no incentive. Trial 2 compared a moderate-probability/moderate-payout lottery with an unconditional fixed payment (payment sent with questionnaire). Trial 3 compared a moderate-probability/moderate-payout lottery with a conditional fixed payment (payment promised following response). Principal Findings. Neither the low-probability nor high-probability lotteries improved response compared with no incentive. Unconditional fixed payments produced significantly greater response than actuarially equivalent lotteries, but conditional fixed payments did not. Conclusions. Lottery-based incentives do not improve clinicians' response rates compared with no incentives, and they are inferior to unconditional fixed payments.
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