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Exponential-growth bias and lifecycle consumption

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  • Levy, Matthew
  • Tasoff, Joshua

Abstract

Exponential-growth bias (EGB) is the tendency for individuals to partially neglect compounding of exponential growth. We develop a model wherein biased agents misperceive the intertemporal budget constraint, and derive conditions for overconsumption and dynamic inconsistency. We construct an incentivized measure of EGB in a US-representative population and find substantial bias, with approximately one third of subjects estimated as the fully biased type. The magnitude of the bias is negatively associated with asset accumulation, and does not respond to a simple graphical intervention.

Suggested Citation

  • Levy, Matthew & Tasoff, Joshua, 2016. "Exponential-growth bias and lifecycle consumption," LSE Research Online Documents on Economics 102087, London School of Economics and Political Science, LSE Library.
    • Handle: RePEc:ehl:lserod:102087
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    File URL: http://eprints.lse.ac.uk/102087/
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    References listed on IDEAS

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    Cited by:

    1. David Blake & John Pickles, 2021. "Mental Time Travel and Retirement Savings," JRFM, MDPI, vol. 14(12), pages 1-13, December.
    2. Goda, Gopi Shah & Levy, Matthew R. & Manchester, Colleen Flaherty & Sojourner, Aaron & Tasoff, Joshua, 2020. "Who is a passive saver under opt-in and auto-enrollment?," Journal of Economic Behavior & Organization, Elsevier, vol. 173(C), pages 301-321.
    3. Asen Ivanov, 2021. "Optimal pension plan default policies when employees are biased," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 23(3), pages 583-596, June.
    4. Breunig, Christoph & Grabova, Iuliia & Haan, Peter & Weinhardt, Felix & Weizsäcker, Georg, 2021. "Long-run expectations of households," Journal of Behavioral and Experimental Finance, Elsevier, vol. 31(C).
    5. Meissner, Thomas & Rostam-Afschar, Davud, 2017. "Learning Ricardian Equivalence," Journal of Economic Dynamics and Control, Elsevier, vol. 82(C), pages 273-288.
    6. Banerjee, Ritwik & Bhattacharya, Joydeep & Majumdar, Priyama, 2021. "Exponential-growth prediction bias and compliance with safety measures related to COVID-19," Social Science & Medicine, Elsevier, vol. 268(C).
    7. Marcel Preuss & Germán Reyes & Jason Somerville & Joy Wu, 2023. "Inequality of Opportunity and Income Redistribution," CEDLAS, Working Papers 0309, CEDLAS, Universidad Nacional de La Plata.
    8. Goda, Gopi Shah & Levy, Matthew R. & Flaherty Manchester, Colleen & Sojourner, Aaron & Tasoff, Joshua & Xiao, Jiusi, 2023. "Are retirement planning tools substitutes or complements to financial capability?," Journal of Economic Behavior & Organization, Elsevier, vol. 214(C), pages 561-573.
    9. Banerjee, Ritwik & Bhattacharya, Joydeep & Majumdar, Priyama, 2020. "Exponential-Growth Prediction Bias and Compliance with Safety Measures in the Times of COVID-19," IZA Discussion Papers 13257, Institute of Labor Economics (IZA).
    10. Ludwig Ensthaler & Olga Nottmeyer & Georg Weizsäcker & Christian Zankiewicz, 2018. "Hidden Skewness: On the Difficulty of Multiplicative Compounding Under Random Shocks," Management Science, INFORMS, vol. 64(4), pages 1693-1706, April.
    11. Foltice, Bryan & Langer, Thomas, 2018. "Exponential growth bias matters: Evidence and implications for financial decision making of college students in the U.S.A," Journal of Behavioral and Experimental Finance, Elsevier, vol. 19(C), pages 56-63.
    12. Olckers, Matthew, 2021. "On track for retirement?," Journal of Economic Behavior & Organization, Elsevier, vol. 190(C), pages 76-88.
    13. Abel, Martin & Byker, Tanya & Carpenter, Jeffrey, 2021. "Socially optimal mistakes? debiasing COVID-19 mortality risk perceptions and prosocial behavior," Journal of Economic Behavior & Organization, Elsevier, vol. 183(C), pages 456-480.
    14. Levy, Matthew R. & Tasoff, Joshua, 2017. "Exponential-growth bias and overconfidence," Journal of Economic Psychology, Elsevier, vol. 58(C), pages 1-14.
    15. Preuss, Marcel & Reyes, Germán & Somerville, Jason & Wu, Joy, 2022. "Inequality of Opportunity and Income Redistribution," VfS Annual Conference 2022 (Basel): Big Data in Economics 264138, Verein für Socialpolitik / German Economic Association.
    16. John Duffy, 2022. "Why macroeconomics needs experimental evidence," The Japanese Economic Review, Springer, vol. 73(1), pages 5-29, January.
    17. Ritwik Banerjee & Priyama Majumdar, 2023. "Exponential growth bias in the prediction of COVID‐19 spread and economic expectation," Economica, London School of Economics and Political Science, vol. 90(358), pages 653-689, April.
    18. Bonaccorsi, Andrea & Apreda, Riccardo & Fantoni, Gualtiero, 2020. "Expert biases in technology foresight. Why they are a problem and how to mitigate them," Technological Forecasting and Social Change, Elsevier, vol. 151(C).
    19. Bohr, Clement E. & Holt, Charles A. & Schubert, Alexandra V., 2019. "Assisted savings for retirement: An experimental analysis," European Economic Review, Elsevier, vol. 119(C), pages 42-54.
    20. Königsheim, C. & Lukas, M. & Nöth, M., 2018. "Individual preferences and the exponential growth bias," Journal of Economic Behavior & Organization, Elsevier, vol. 145(C), pages 352-369.
    21. Hagen, Johannes & Malisa, Amedeus, 2022. "Financial fraud and individual investment behavior," Journal of Economic Behavior & Organization, Elsevier, vol. 203(C), pages 593-626.
    22. Levy, Matthew R. & Tasoff, Joshua, 2017. "Exponential-growth bias and overconfidence," LSE Research Online Documents on Economics 68881, London School of Economics and Political Science, LSE Library.
    23. Marcel Preuss & Germán Reyes & Jason Somerville & Joy Wu, 2023. "Inequality of Opportunity and Income Redistribution," CESifo Working Paper Series 10383, CESifo.
    24. McGowan, Féidhlim & Lunn, Pete & Robertson, Deirdre, 2019. "Underestimation of money growth and pensions: Experimental investigations," Papers WP611, Economic and Social Research Institute (ESRI).
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    More about this item

    Keywords

    household behavior; consumer economics; exponential-growth bias;
    All these keywords.

    JEL classification:

    • D14 - Microeconomics - - Household Behavior - - - Household Saving; Personal Finance
    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • D18 - Microeconomics - - Household Behavior - - - Consumer Protection
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis

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