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Left-Digit Bias at Lyft

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  • John List
  • Ian Muir
  • Devin Pope
  • Gregory Sun

Abstract

Left-digit bias (or 99-cent pricing) has been discussed extensively in economics, psychology, and marketing. Despite this, we show that the rideshare company, Lyft, was not using a 99-cent pricing strategy prior to our study. Based on observational data from over 600 million Lyft sessions followed by a field experiment conducted with 21 million Lyft passengers, we provide evidence of large discontinuities in demand at dollar values. Approximately half of the downward slope of the demand curve occurs discontinuously as the price of a ride drops below a dollar value (e.g. $14.00 to $13.99). If our short run estimates persist in the longer run, we calculate that Lyft could increase its profits by roughly $160M per year by employing a left-digit bias pricing strategy. Our results showcase the robustness of an important behavioral bias for a large, modern company and its persistence in a highly-competitive market.

Suggested Citation

  • John List & Ian Muir & Devin Pope & Gregory Sun, 2023. "Left-Digit Bias at Lyft," Natural Field Experiments 00771, The Field Experiments Website.
    • Handle: RePEc:feb:natura:00771
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    1. Mark Stiving, 2000. "Price-Endings When Prices Signal Quality," Management Science, INFORMS, vol. 46(12), pages 1617-1629, December.
    2. Hansen, Lars Peter, 1982. "Large Sample Properties of Generalized Method of Moments Estimators," Econometrica, Econometric Society, vol. 50(4), pages 1029-1054, July.
    3. Ginger Zhe Jin & Andrew Kato & John A. List, 2010. "That’S News To Me! Information Revelation In Professional Certification Markets," Economic Inquiry, Western Economic Association International, vol. 48(1), pages 104-122, January.
    4. Stefano DellaVigna & Ulrike Malmendier, 2004. "Contract Design and Self-Control: Theory and Evidence," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 119(2), pages 353-402.
    5. Nicholas Bloom & John Van Reenen, 2007. "Measuring and Explaining Management Practices Across Firms and Countries," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 122(4), pages 1351-1408.
    6. Meghan R. Busse & Christopher R. Knittel & Florian Zettelmeyer, 2013. "Are Consumers Myopic? Evidence from New and Used Car Purchases," American Economic Review, American Economic Association, vol. 103(1), pages 220-256, February.
    7. Raj Chetty & Adam Looney & Kory Kroft, 2009. "Salience and Taxation: Theory and Evidence," American Economic Review, American Economic Association, vol. 99(4), pages 1145-1177, September.
    8. Armstrong, Mark & Vickers, John, 2015. "Which demand systems can be generated by discrete choice?," Journal of Economic Theory, Elsevier, vol. 158(PA), pages 293-307.
    9. John A. List, 2004. "Testing Neoclassical Competitive Theory in Multilateral Decentralized Markets," Journal of Political Economy, University of Chicago Press, vol. 112(5), pages 1131-1156, October.
    10. Stiving, Mark & Winer, Russell S, 1997. "An Empirical Analysis of Price Endings with Scanner Data," Journal of Consumer Research, Journal of Consumer Research Inc., vol. 24(1), pages 57-67, June.
    11. David Laibson & Andrea Repetto & Jeremy Tobacman, 2005. "Estimating Discount Functions with Consumption Choices over the Lifecycle," Levine's Bibliography 784828000000000643, UCLA Department of Economics.
    12. John A. List, 2020. "Non est Disputandum de Generalizability? A Glimpse into The External Validity Trial," NBER Working Papers 27535, National Bureau of Economic Research, Inc.
    13. Stefano DellaVigna, 2009. "Psychology and Economics: Evidence from the Field," Journal of Economic Literature, American Economic Association, vol. 47(2), pages 315-372, June.
    14. Imbens, Guido W & Angrist, Joshua D, 1994. "Identification and Estimation of Local Average Treatment Effects," Econometrica, Econometric Society, vol. 62(2), pages 467-475, March.
    15. Cade Massey & Richard H. Thaler, 2013. "The Loser's Curse: Decision Making and Market Efficiency in the National Football League Draft," Management Science, INFORMS, vol. 59(7), pages 1479-1495, July.
    16. John A. List, 2003. "Does Market Experience Eliminate Market Anomalies?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 118(1), pages 41-71.
    17. Carver, James R. & Padgett, Daniel T., 2012. "Product Category Pricing and Future Price Attractiveness: 99-Ending Pricing in a Memory-Based Context," Journal of Retailing, Elsevier, vol. 88(4), pages 497-511.
    18. Stefano DellaVigna & Matthew Gentzkow, 2019. "Uniform Pricing in U.S. Retail Chains," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 134(4), pages 2011-2084.
    19. Kaushik Basu, 2006. "Consumer Cognition and Pricing in the Nines in Oligopolistic Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 15(1), pages 125-141, March.
    20. Wagner, Alfred, 1891. "Marshall's Principles of Economics," History of Economic Thought Articles, McMaster University Archive for the History of Economic Thought, vol. 5, pages 319-338.
    21. Aart Gerritsen, 2015. "Optimal Taxation when People Do Not Maximize Well-Being," Working Papers tax-mpg-rps-2015-07, Max Planck Institute for Tax Law and Public Finance.
    22. Stefano Dellavigna & John A. List & Ulrike Malmendier & Gautam Rao, 2017. "Voting to Tell Others," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 84(1), pages 143-181.
    23. Gode, Dhananjay K & Sunder, Shyam, 1993. "Allocative Efficiency of Markets with Zero-Intelligence Traders: Market as a Partial Substitute for Individual Rationality," Journal of Political Economy, University of Chicago Press, vol. 101(1), pages 119-137, February.
    24. Rema Hanna & Sendhil Mullainathan & Joshua Schwartzstein, 2014. "Learning Through Noticing: Theory and Evidence from a Field Experiment," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 129(3), pages 1311-1353.
    25. Joshua D. Angrist & Kathryn Graddy & Guido W. Imbens, 2000. "The Interpretation of Instrumental Variables Estimators in Simultaneous Equations Models with an Application to the Demand for Fish," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 67(3), pages 499-527.
    26. Basu, Kaushik, 1997. "Why are so many goods priced to end in nine? And why this practice hurts the producers," Economics Letters, Elsevier, vol. 54(1), pages 41-44, January.
    27. Avi Goldfarb & Mo Xiao, 2011. "Who Thinks about the Competition? Managerial Ability and Strategic Entry in US Local Telephone Markets," American Economic Review, American Economic Association, vol. 101(7), pages 3130-3161, December.
    28. Peter Cohen & Robert Hahn & Jonathan Hall & Steven Levitt & Robert Metcalfe, 2016. "Using Big Data to Estimate Consumer Surplus: The Case of Uber," NBER Working Papers 22627, National Bureau of Economic Research, Inc.
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