IDEAS home Printed from https://ideas.repec.org/a/inm/ordeca/v14y2017i3p170-186.html
   My bibliography  Save this article

In Equations We Trust? Formula Knowledge Effects on the Exponential Growth Bias in Household Finance Decisions

Author

Listed:
  • Bryan Foltice

    (College of Business, Butler University, Indianapolis, Indiana 46208)

  • Thomas Langer

    (Finance Center Muenster, University of Muenster, 48143 Muenster, Germany)

Abstract

Exponential growth effects play a major role in many household finance decisions. A systematic bias in dealing with exponential growth can lead to poor savings and debt decisions. In this paper, we extend previous research on the exponential growth bias in the savings and debt domains and provide a first experimental link between these two important fields of consumer financial decision making. We develop a measure for the exponential growth bias that naturally extends over different domains and parameter settings, and we explore the ramifications of being acquainted with the basic formula of exponential savings growth. Specifically, we analyze whether such formula knowledge helps only in calculating simple compound interest scenarios with a pocket calculator or if it provides benefits that go beyond this narrow field of application. We observe that—even without a pocket calculator—individuals who know the compound interest formula provide less biased estimates for problems from the savings domain and also for slightly more complicated debt amortization problems that also build on exponential growth effects. We conclude that being acquainted with the compound interest formula provides some intuitive grasp of exponential effects that can be helpful in a broader range of household finance decisions. At the same time, we observe that too much dependence on a calculator can have adverse effects: when equipped with a pocket calculator, a number of participants, both aware and unaware of the compound savings formula, provided persistently insensible answers greater than the initial loan balance in the debt domain.

Suggested Citation

  • Bryan Foltice & Thomas Langer, 2017. "In Equations We Trust? Formula Knowledge Effects on the Exponential Growth Bias in Household Finance Decisions," Decision Analysis, INFORMS, vol. 14(3), pages 170-186, September.
    • Handle: RePEc:inm:ordeca:v:14:y:2017:i:3:p:170-186
    DOI: 10.1287/deca.2017.0351
    as

    Download full text from publisher

    File URL: https://doi.org/10.1287/deca.2017.0351
    Download Restriction: no
    File URL: https://libkey.io/10.1287/deca.2017.0351?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Daniel Fernandes & John G. Lynch & Richard G. Netemeyer, 2014. "Financial Literacy, Financial Education, and Downstream Financial Behaviors," Management Science, INFORMS, vol. 60(8), pages 1861-1883, August.
    2. Goda, Gopi Shah & Manchester, Colleen Flaherty & Sojourner, Aaron J., 2014. "What will my account really be worth? Experimental evidence on how retirement income projections affect saving," Journal of Public Economics, Elsevier, vol. 119(C), pages 80-92.
    3. Lusardi, Annamaria & Tufano, Peter, 2015. "Debt literacy, financial experiences, and overindebtedness," Journal of Pension Economics and Finance, Cambridge University Press, vol. 14(4), pages 332-368, October.
    4. Victor Stango & Jonathan Zinman, 2009. "Exponential Growth Bias and Household Finance," Journal of Finance, American Finance Association, vol. 64(6), pages 2807-2849, December.
    5. Johan Almenberg & Christer Gerdes, 2012. "Exponential growth bias and financial literacy," Applied Economics Letters, Taylor & Francis Journals, vol. 19(17), pages 1693-1696.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Pascal Büsing & Henning Cordes & Thomas Langer, 2023. "How the provision of inflation information affects pension contributions: A field experiment," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 90(3), pages 633-666, September.
    2. Nikolov, Plamen & Pape, Andreas & Tonguc, Ozlem & Williams, Charlotte, 2020. "Predictors of Social Distancing and Mask-Wearing Behavior: Panel Survey in Seven U.S. States," IZA Discussion Papers 13745, Institute of Labor Economics (IZA).
    3. Henning Cordes & Bryan Foltice & Thomas Langer, 2019. "Misperception of Exponential Growth: Are People Aware of Their Errors?," Decision Analysis, INFORMS, vol. 16(4), pages 261-280, December.
    4. 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.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. 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.
    2. Tim Kaiser & Lukas Menkhoff, 2017. "Does Financial Education Impact Financial Literacy and Financial Behavior, and If So, When?," The World Bank Economic Review, World Bank, vol. 31(3), pages 611-630.
    3. Oscar A. Stolper & Andreas Walter, 2017. "Financial literacy, financial advice, and financial behavior," Journal of Business Economics, Springer, vol. 87(5), pages 581-643, July.
    4. Henning Cordes & Bryan Foltice & Thomas Langer, 2019. "Misperception of Exponential Growth: Are People Aware of Their Errors?," Decision Analysis, INFORMS, vol. 16(4), pages 261-280, December.
    5. Grohmann, Antonia & Kouwenberg, Roy & Menkhoff, Lukas, 2015. "Childhood roots of financial literacy," Journal of Economic Psychology, Elsevier, vol. 51(C), pages 114-133.
    6. Dean Karlan & Aishwarya Lakshmi Ratan & Jonathan Zinman, 2014. "Savings by and for the Poor: A Research Review and Agenda," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 60(1), pages 36-78, March.
    7. Remya Tressa Jacob & Rudra Sensarma, 2022. "Does knowledge empower? A story of debt literacy and credit usage in rural consumer finance," Working papers 529, Indian Institute of Management Kozhikode.
    8. Olckers, Matthew, 2021. "On track for retirement?," Journal of Economic Behavior & Organization, Elsevier, vol. 190(C), pages 76-88.
    9. Sandro Ambuehl & B. Douglas Bernheim & Annamaria Lusardi, 2022. "Evaluating Deliberative Competence: A Simple Method with an Application to Financial Choice," American Economic Review, American Economic Association, vol. 112(11), pages 3584-3626, November.
    10. 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.
    11. Annamaria Lusardi & Olivia S. Mitchell, 2014. "The Economic Importance of Financial Literacy: Theory and Evidence," Journal of Economic Literature, American Economic Association, vol. 52(1), pages 5-44, March.
    12. Cristina Ottaviani & Daniela Vandone, 2018. "Financial Literacy, Debt Burden and Impulsivity: A Mediation Analysis," Economic Notes, Banca Monte dei Paschi di Siena SpA, vol. 47(2-3), pages 439-454, July.
    13. Travis P. Mountain & Namhoon Kim & Joyce Serido & Soyeon Shim, 2021. "Does Type of Financial Learning Matter for Young Adults’ Objective Financial Knowledge and Financial Behaviors? A Longitudinal and Mediation Analysis," Journal of Family and Economic Issues, Springer, vol. 42(1), pages 113-132, March.
    14. Hanson, Thomas A. & Olson, Peter M., 2018. "Financial literacy and family communication patterns," Journal of Behavioral and Experimental Finance, Elsevier, vol. 19(C), pages 64-71.
    15. M. M. Naeser Seldal & Ellen K. Nyhus, 2022. "Financial Vulnerability, Financial Literacy, and the Use of Digital Payment Technologies," Journal of Consumer Policy, Springer, vol. 45(2), pages 281-306, June.
    16. Tim Kaiser & Annamaria Lusardi, 2024. "Financial Literacy and Financial Education: An Overview," CESifo Working Paper Series 11070, CESifo.
    17. Grohmann, Antonia, 2018. "Financial literacy and financial behavior: Evidence from the emerging Asian middle class," Pacific-Basin Finance Journal, Elsevier, vol. 48(C), pages 129-143.
    18. Trang M. T. Phung & Quoc N. Tran & Phuong Nguyen‐Hoang & Nhut H. Nguyen & Tho H. Nguyen, 2023. "The role of learning motivation on financial knowledge among Vietnamese college students," Journal of Consumer Affairs, Wiley Blackwell, vol. 57(1), pages 529-563, January.
    19. Agarwal, Sumit & Chomsisengphet, Souphala & Zhang, Yunqi, 2017. "How does working in a finance profession affect mortgage delinquency?," Journal of Banking & Finance, Elsevier, vol. 78(C), pages 1-13.
    20. Raquel Fonseca & Simon Lord, 2020. "Canadian Gender Gap in Financial Literacy: Confidence Matters," Hacienda Pública Española / Review of Public Economics, IEF, vol. 235(4), pages 153-182, December.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:inm:ordeca:v:14:y:2017:i:3:p:170-186. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Chris Asher (email available below). General contact details of provider: https://edirc.repec.org/data/inforea.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.