Should Individuals Choose Their Own Incentives? Evidence from a Mindfulness Meditation Intervention
研究让参与者从递增挑战和奖励的选项中选择自己的激励方案，理论预测能改善依从性和福利，但现场实验发现选择组完成的冥想次数反而少于随机分配组，可能源于心理效应。
Traditionally, incentives to promote behavioral change are assigned rather than chosen. In this paper, we theoretically and empirically investigate the alternative approach of letting people choose their own incentives from a menu of increasingly challenging and rewarding options. When individuals are heterogeneous and have private information about their costs and benefits, we theoretically show that leaving them the choice of incentives can improve both adherence and welfare. We test the theoretical predictions in a field experiment based on daily meditation sessions. We randomly assign some participants to one of two incentive schemes and allow others to choose between the two schemes. As predicted, participants sort into schemes in (partial) agreement with the objectives of the policymaker. However, in contrast to our prediction, participants who could choose complete significantly fewer sessions than participants that were randomly assigned. Because the results are not driven by poor selection, we infer that letting people choose between incentive schemes may bring in psychological effects that discourage adherence. This paper was accepted by Axel Ockenfels, behavioral economics and decision analysis. Funding: This work was supported by Zilveren Kruis Zorgverzekeringen N.V. Supplemental Material: The online appendix and data files are available at https://doi.org/10.1287/mnsc.2021.04157 .