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Individual Health Insurance Market with an Entrant – The ACA Health Insurance Exchange Observations

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  • Shi Bo

    (Accounting and Finance, School of Business and Technology, Morehead State University, Morehead, Kentucky, USA)

  • Chen Wen

    (School of Business, Providence College, Providence, Rhode Island, USA)

Abstract

In this paper, a general framework is built up to model the dynamic of consumer health plan choice and individual health insurance market competition. A primary goal is to identify driving forces to individual health insurance equilibrium market coverage and premium. In the baseline model, we introduce plan quality information search cost as an additional determinant to consumer’s plan choice. Health insurers compete under the Hotelling’s game theory framework. Equilibrium solutions of the baseline model highlight the importance of budget limit and information search cost to health plan enrollment. The more important objective is to examine the impact of market entrants on equilibrium insurance market coverage and plan prices. In the model with market entry, we add an additional dimension to the baseline model. Equilibrium solutions and numerical studies show positive impact of higher insurance market coverage and lower health plan prices. The Affordable Care Act (ACA) brought multiple unprecedented changes to the health insurance market and provided opportunities to study market dynamics and driving forces. The ACA health insurance exchange market experience shows consistency with our model findings even at the early stage of implementation. More importantly, market observations suggest that entry barriers of claim costs and information search cost are high for entrants.

Suggested Citation

  • Shi Bo & Chen Wen, 2018. "Individual Health Insurance Market with an Entrant – The ACA Health Insurance Exchange Observations," Asia-Pacific Journal of Risk and Insurance, De Gruyter, vol. 12(2), pages 1-27, July.
  • Handle: RePEc:bpj:apjrin:v:12:y:2018:i:2:p:27:n:6
    DOI: 10.1515/apjri-2018-0001
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    References listed on IDEAS

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    1. Pietro Tebaldi, 2015. "Estimating Equilibrium in Health Insurance Exchanges: Analysis of the Californian Market under the ACA," Discussion Papers 15-012, Stanford Institute for Economic Policy Research.
    2. 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.
    3. Biglaiser, Gary & Ma, Ching-to Albert, 2003. "Price and Quality Competition under Adverse Selection: Market Organization and Efficiency," RAND Journal of Economics, The RAND Corporation, vol. 34(2), pages 266-286, Summer.
    4. Carlson, John A & McAfee, R Preston, 1983. "Discrete Equilibrium Price Dispersion," Journal of Political Economy, University of Chicago Press, vol. 91(3), pages 480-493, June.
    5. Ali Hortaçsu & Chad Syverson, 2004. "Product Differentiation, Search Costs, and Competition in the Mutual Fund Industry: A Case Study of S&P 500 Index Funds," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 119(2), pages 403-456.
    6. Krueger, Alan B. & Kuziemko, Ilyana, 2013. "The demand for health insurance among uninsured Americans: Results of a survey experiment and implications for policy," Journal of Health Economics, Elsevier, vol. 32(5), pages 780-793.
    7. Simon P. Anderson & Regis Renault, 1999. "Pricing, Product Diversity, and Search Costs: A Bertrand-Chamberlin-Diamond Model," RAND Journal of Economics, The RAND Corporation, vol. 30(4), pages 719-735, Winter.
    8. Glazer, Jacob & McGuire, Thomas G., 2011. "Gold and Silver health plans: Accommodating demand heterogeneity in managed competition," Journal of Health Economics, Elsevier, vol. 30(5), pages 1011-1019.
    9. Abraham, Jean M. & Feldman, Roger & Carlin, Caroline & Christianson, Jon, 2006. "The effect of quality information on consumer health plan switching: Evidence from the Buyers Health Care Action Group," Journal of Health Economics, Elsevier, vol. 25(4), pages 762-781, July.
    10. Brekke, Kurt R. & Cellini, Roberto & Siciliani, Luigi & Straume, Odd Rune, 2010. "Competition and quality in health care markets: A differential-game approach," Journal of Health Economics, Elsevier, vol. 29(4), pages 508-523, July.
    11. Buchmueller, Thomas C. & Feldstein, Paul J., 1997. "The effect of price on switching among health plans," Journal of Health Economics, Elsevier, vol. 16(2), pages 231-247, April.
    12. Varkevisser, Marco & van der Geest, Stéphanie A. & Schut, Frederik T., 2012. "Do patients choose hospitals with high quality ratings? Empirical evidence from the market for angioplasty in the Netherlands," Journal of Health Economics, Elsevier, vol. 31(2), pages 371-378.
    13. Bundorf, M. Kate & Pauly, Mark V., 2006. "Is health insurance affordable for the uninsured?," Journal of Health Economics, Elsevier, vol. 25(4), pages 650-673, July.
    14. Jung, Kyoungrae & Feldman, Roger & Scanlon, Dennis, 2011. "Where would you go for your next hospitalization?," Journal of Health Economics, Elsevier, vol. 30(4), pages 832-841, July.
    15. W. P. Welch, 1986. "The Elasticity of Demand for Health Maintenance Organizations," Journal of Human Resources, University of Wisconsin Press, vol. 21(2), pages 252-266.
    16. Olivella, Pau & Vera-Hernandez, Marcos, 2007. "Competition among differentiated health plans under adverse selection," Journal of Health Economics, Elsevier, vol. 26(2), pages 233-250, March.
    17. Stahl, Dale O, II, 1989. "Oligopolistic Pricing with Sequential Consumer Search," American Economic Review, American Economic Association, vol. 79(4), pages 700-712, September.
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