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Nudge Me! A field experiment on reminders for medication adherence

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  • Barron, Kai
  • Damgaard, Mette Trier
  • Gravert, Christina

Abstract

Reminders are widely used in public policy to promote beneficial behaviors, but little is known about how individuals value them. We conduct a field experiment with over 4,000 pregnant women in South Africa, delivered via the national mobile health platform, to assess how different reminder types—purely attentional, informational, and morally persuasive—affect both adherence to iron supplementation and willingness to pay (WTP) for future reminders. Despite high self-reported adherence, demand for reminders is substantial: over 80% choose additional reminders when free, and many are willing to pay to receive them. Exposure to reminders increases both adherence and WTP. However, reminders that include additional health information significantly reduce both outcomes relative to simple reminders, showing that even well-intended information can have unintended consequences. Our results can help inform the design of public health communications.

Suggested Citation

  • Barron, Kai & Damgaard, Mette Trier & Gravert, Christina, 2026. "Nudge Me! A field experiment on reminders for medication adherence," Journal of Economic Behavior & Organization, Elsevier, vol. 241(C).
    • Handle: RePEc:eee:jeborg:v:241:y:2026:i:c:s0167268125004858
    DOI: 10.1016/j.jebo.2025.107368
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    1. Dean Karlan & Margaret McConnell & Sendhil Mullainathan & Jonathan Zinman, 2016. "Getting to the Top of Mind: How Reminders Increase Saving," Management Science, INFORMS, vol. 62(12), pages 3393-3411, December.
    2. Anderson, Michael L., 2008. "Multiple Inference and Gender Differences in the Effects of Early Intervention: A Reevaluation of the Abecedarian, Perry Preschool, and Early Training Projects," Journal of the American Statistical Association, American Statistical Association, vol. 103(484), pages 1481-1495.
    3. Hunt Allcott & Judd B. Kessler, 2019. "The Welfare Effects of Nudges: A Case Study of Energy Use Social Comparisons," American Economic Journal: Applied Economics, American Economic Association, vol. 11(1), pages 236-276, January.
    4. Altmann, Steffen & Traxler, Christian, 2014. "Nudges at the dentist," European Economic Review, Elsevier, vol. 72(C), pages 19-38.
    5. Gilbert, Ben & Graff Zivin, Joshua, 2014. "Dynamic salience with intermittent billing: Evidence from smart electricity meters," Journal of Economic Behavior & Organization, Elsevier, vol. 107(PA), pages 176-190.
    6. Kai Barron & Mette Trier Damgaard & Christina Gravert, 2022. "When Do Reminders Work? Memory Constraints and Medical Adherence," CESifo Working Paper Series 9996, CESifo.
    7. Ernst Fehr & Ivo Schurtenberger, 2018. "Normative foundations of human cooperation," Nature Human Behaviour, Nature, vol. 2(7), pages 458-468, July.
    8. Charness, Gary & Dufwenberg, Martin, 2003. "Promises & Partnership," Research Papers in Economics 2003:3, Stockholm University, Department of Economics.
    9. Damgaard, Mette Trier & Gravert, Christina, 2018. "The hidden costs of nudging: Experimental evidence from reminders in fundraising," Journal of Public Economics, Elsevier, vol. 157(C), pages 15-26.
    10. Giacomo Calzolari & Mattia Nardotto, 2017. "Effective Reminders," Management Science, INFORMS, vol. 63(9), pages 2915-2932, September.
    11. Beshears, John & Choi, James J. & Harris, Christopher & Laibson, David & Madrian, Brigitte C. & Sakong, Jung, 2020. "Which early withdrawal penalty attracts the most deposits to a commitment savings account?," Journal of Public Economics, Elsevier, vol. 183(C).
    12. Ingar Haaland & Christopher Roth & Johannes Wohlfart, 2023. "Designing Information Provision Experiments," Journal of Economic Literature, American Economic Association, vol. 61(1), pages 3-40, March.
    13. Adams, Paul & Hunt, Stefan & Palmer, Christopher & Zaliauskas, Redis, 2021. "Testing the effectiveness of consumer financial disclosure: Experimental evidence from savings accounts," Journal of Financial Economics, Elsevier, vol. 141(1), pages 122-147.
    14. Antinyan, Armenak & Asatryan, Zareh, 2019. "Nudging for tax compliance: A meta-analysis," ZEW Discussion Papers 19-055, ZEW - Leibniz Centre for European Economic Research.
    15. Susan Dynarski & CJ Libassi & Katherine Michelmore & Stephanie Owen, 2021. "Closing the Gap: The Effect of Reducing Complexity and Uncertainty in College Pricing on the Choices of Low-Income Students," American Economic Review, American Economic Association, vol. 111(6), pages 1721-1756, June.
    16. Erin T. Bronchetti & Judd B. Kessler & Ellen B. Magenheim & Dmitry Taubinsky & Eric Zwick, 2023. "Is Attention Produced Optimally? Theory and Evidence From Experiments With Bandwidth Enhancements," Econometrica, Econometric Society, vol. 91(2), pages 669-707, March.
    17. Sally Sadoff & Anya Samek & Charles Sprenger, 2020. "Dynamic Inconsistency in Food Choice: Experimental Evidence from Two Food Deserts," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 87(4), pages 1954-1988.
    18. Hunt Allcott & Todd Rogers, 2014. "The Short-Run and Long-Run Effects of Behavioral Interventions: Experimental Evidence from Energy Conservation," American Economic Review, American Economic Association, vol. 104(10), pages 3003-3037, October.
    19. Gary Charness & Martin Dufwenberg, 2006. "Promises and Partnership," Econometrica, Econometric Society, vol. 74(6), pages 1579-1601, November.
    20. Stefano DellaVigna & Elizabeth Linos, 2022. "RCTs to Scale: Comprehensive Evidence From Two Nudge Units," Econometrica, Econometric Society, vol. 90(1), pages 81-116, January.
    21. George Loewenstein & Zachary Wojtowicz, 2025. "The Economics of Attention," Journal of Economic Literature, American Economic Association, vol. 63(3), pages 1038-1089, September.
    22. Ek, Claes & Söderberg, Magnus, 2024. "Norm-based feedback on household waste: Large-scale field experiments in two Swedish municipalities," Journal of Public Economics, Elsevier, vol. 238(C).
    23. Christoph Vanberg, 2008. "Why Do People Keep Their Promises? An Experimental Test of Two Explanations -super-1," Econometrica, Econometric Society, vol. 76(6), pages 1467-1480, November.
    24. Saurabh Bhargava & Dayanand Manoli, 2015. "Psychological Frictions and the Incomplete Take-Up of Social Benefits: Evidence from an IRS Field Experiment," American Economic Review, American Economic Association, vol. 105(11), pages 3489-3529, November.
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    Keywords

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    JEL classification:

    • D04 - Microeconomics - - General - - - Microeconomic Policy: Formulation; Implementation; Evaluation
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • C93 - Mathematical and Quantitative Methods - - Design of Experiments - - - Field Experiments
    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior

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