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Equity and efficiency effects of flat premiums

Author

Listed:
  • Cristian Pardo

    (Saint Joseph’s University)

  • Jorge Sabat

    (Universidad Andres Bello)

Abstract

This paper analyzes the impact of flat premiums on equity and efficiency within a regulated market. We examine the consequences of shifting from a risk-adjusted premium model to a flat premium system, particularly focusing on how this shift affects different income groups and market efficiency. Using a combination of theoretical modeling and empirical analysis, we find that flat premiums may lead to increased cross-subsidization among participants, with notable effects on both equity and efficiency. Our results suggest that while flat premiums simplify the regulatory framework, they also introduce trade-offs that policymakers must carefully consider.

Suggested Citation

  • Cristian Pardo & Jorge Sabat, 2025. "Equity and efficiency effects of flat premiums," International Journal of Health Economics and Management, Springer, vol. 25(1), pages 27-49, March.
  • Handle: RePEc:kap:ijhcfe:v:25:y:2025:i:1:d:10.1007_s10754-024-09388-x
    DOI: 10.1007/s10754-024-09388-x
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    1. Hansen, Lars Peter, 1982. "Large Sample Properties of Generalized Method of Moments Estimators," Econometrica, Econometric Society, vol. 50(4), pages 1029-1054, July.
    2. Pardo, Cristian, 2019. "Health care reform, adverse selection and health insurance choice," Journal of Health Economics, Elsevier, vol. 67(C).
    3. Eric French & Hans-Martin von Gaudecker & John Bailey Jones, 2016. "The Effect of the Affordable Care Act on the Labor Supply, Savings, and Social Security of Older Americans," Working Papers wp354, University of Michigan, Michigan Retirement Research Center.
    4. Liran Einav & Amy Finkelstein & Mark R. Cullen, 2010. "Estimating Welfare in Insurance Markets Using Variation in Prices," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 125(3), pages 877-921.
    5. Jacob A. Mincer, 1974. "Introduction to "Schooling, Experience, and Earnings"," NBER Chapters, in: Schooling, Experience, and Earnings, pages 1-4, National Bureau of Economic Research, Inc.
    6. Eric French & John Bailey Jones, 2011. "The Effects of Health Insurance and Self‐Insurance on Retirement Behavior," Econometrica, Econometric Society, vol. 79(3), pages 693-732, May.
    7. Laurence J. Kotlikoff, 1986. "Health Expenditures and Precautionary Savings," NBER Working Papers 2008, National Bureau of Economic Research, Inc.
    8. Cristian Pardo & Whitney Schott, 2012. "Public versus private: evidence on health insurance selection," International Journal of Health Economics and Management, Springer, vol. 12(1), pages 39-61, March.
    9. Keith M. Marzilli Ericson & Amanda Starc, 2015. "Pricing Regulation and Imperfect Competition on the Massachusetts Health Insurance Exchange," The Review of Economics and Statistics, MIT Press, vol. 97(3), pages 667-682, July.
    10. Carroll, Christopher D., 2006. "The method of endogenous gridpoints for solving dynamic stochastic optimization problems," Economics Letters, Elsevier, vol. 91(3), pages 312-320, June.
    11. Miles Kimball & Philippe Weil, 2009. "Precautionary Saving and Consumption Smoothing across Time and Possibilities," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 41(2‐3), pages 245-284, March.
    12. Sapelli, Claudio, 2004. "Risk segmentation and equity in the Chilean mandatory health insurance system," Social Science & Medicine, Elsevier, vol. 58(2), pages 259-265, January.
    13. Jacob A. Mincer, 1974. "Schooling, Experience, and Earnings," NBER Books, National Bureau of Economic Research, Inc, number minc74-1, March.
    14. Sapelli, Claudio & Vial, Bernardita, 2003. "Self-selection and moral hazard in Chilean health insurance," Journal of Health Economics, Elsevier, vol. 22(3), pages 459-476, May.
    15. Pau Olivella & Fred Schroyen, 2014. "Multidimensional Screening in a Monopolistic Insurance Market," The Geneva Risk and Insurance Review, Palgrave Macmillan;International Association for the Study of Insurance Economics (The Geneva Association), vol. 39(1), pages 90-130, March.
    16. Jonathan Cohen & Keith Marzilli Ericson & David Laibson & John Myles White, 2020. "Measuring Time Preferences," Journal of Economic Literature, American Economic Association, vol. 58(2), pages 299-347, June.
    17. Ana Castaneda & Javier Diaz-Gimenez & Jose-Victor Rios-Rull, 2003. "Accounting for the U.S. Earnings and Wealth Inequality," Journal of Political Economy, University of Chicago Press, vol. 111(4), pages 818-857, August.
    18. Pelgrin, Florian & St-Amour, Pascal, 2016. "Life cycle responses to health insurance status," Journal of Health Economics, Elsevier, vol. 49(C), pages 76-96.
    19. Berstein, Solange & Fuentes, Olga & Villatoro, Félix, 2013. "Default investment strategies in a defined contribution pension system: a pension risk model application for the chilean case," Journal of Pension Economics and Finance, Cambridge University Press, vol. 12(4), pages 379-414, October.
    20. M. Kate Bundorf & Jonathan Levin & Neale Mahoney, 2012. "Pricing and Welfare in Health Plan Choice," American Economic Review, American Economic Association, vol. 102(7), pages 3214-3248, December.
    21. Michael Rothschild & Joseph Stiglitz, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 90(4), pages 629-649.
    22. Levin, Laurence, 1995. "Demand for health insurance and precautionary motives for savings among the elderly," Journal of Public Economics, Elsevier, vol. 57(3), pages 337-367, July.
    23. Michael G. Palumbo, 1999. "Uncertain Medical Expenses and Precautionary Saving Near the End of the Life Cycle," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 66(2), pages 395-421.
    24. Fedor Iskhakov & Thomas Høgholm Jørgensen & John Rust & Bertel Schjerning, 2015. "Estimating Discrete-Continuous Choice Models: The Endogenous Grid Method with Taste Shocks," Discussion Papers 15-19, University of Copenhagen. Department of Economics.
    25. Blomqvist, Ake & Horn, Henrik, 1984. "Public health insurance and optimal income taxation," Journal of Public Economics, Elsevier, vol. 24(3), pages 353-371, August.
    26. David M. Cutler & Sarah J. Reber, 1998. "Paying for Health Insurance: The Trade-Off between Competition and Adverse Selection," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 113(2), pages 433-466.
    27. Jan Abel Olsen, 1993. "Time preferences for health gains: An empirical investigation," Health Economics, John Wiley & Sons, Ltd., vol. 2(3), pages 257-265, October.
    28. Ben Handel & Igal Hendel & Michael D. Whinston, 2015. "Equilibria in Health Exchanges: Adverse Selection versus Reclassification Risk," Econometrica, Econometric Society, vol. 83(4), pages 1261-1313, July.
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    More about this item

    Keywords

    Household finance; Health reform; Welfare analysis;
    All these keywords.

    JEL classification:

    • D14 - Microeconomics - - Household Behavior - - - Household Saving; Personal Finance
    • D15 - Microeconomics - - Household Behavior - - - Intertemporal Household Choice; Life Cycle Models and Saving
    • H51 - Public Economics - - National Government Expenditures and Related Policies - - - Government Expenditures and Health
    • C54 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Quantitative Policy Modeling
    • I13 - Health, Education, and Welfare - - Health - - - Health Insurance, Public and Private

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