Does Public Health Insurance Expansion Influence Medical Liability Insurance Prices? The Case of the ACA’s Optional Medicaid Expansion

REFERENCES

• Aon. 2015. Hospital and physician professional liability benchmark report. American Society for Health Care Risk Management.
   Google Scholar
• Auden, J., and G. Glombicki. 2019. MPL insurance market slowly reacting to poorer profits. Medical Liability Monitor Newsletter 44(9).
   Google Scholar
• Auerback, I. D., P. Heaton, and I. Brantley. 2014. How will the patient protection and Affordable Care Act affect liability insurance costs? RAND report.
   Google Scholar
• Avraham, R. 2019. Database of State Tort Law Reforms (DSTLR 6th). University of Texas Law.
   Google Scholar
• Baicker, K., E. S. Fisher, and A. Chandra. 2007. Malpractice liability costs and the practice of medicine in the Medicare program. Health Affairs 26(3): 841–52. doi:10.1377/hlthaff.26.3.841
   Web of Science ®Google Scholar
• Baker, T. 2004. Medical malpractice and the insurance underwriting cycle. The DePaul Law Review 54, 393.
   Google Scholar
• Barbaresco, S., C. J. Courtemanche, and Y. Qi. 2015. Impacts of the Affordable Care Act dependent coverage provision on health-related outcomes of young adults. Journal of Health Economics 40: 54–68. doi:10.1016/j.jhealeco.2014.12.004
   PubMed Web of Science ®Google Scholar
• Black, B. S., J. Chung, J. Traczynski, V. Udalova, and S. Vats. 2016. Medical liability insurance premia 1990–2017: Dataset, literature review, and summary information. Journal of Empirical Legal Studies.
   Web of Science ®Google Scholar
• Bodenheimer, T. S., and M. D. Smith. 2013. Primary care: Proposed solutions to the physician shortage without training more physicians. Health Affairs 32(11): 1881–86. doi:10.1377/hlthaff.2013.0234
   PubMed Web of Science ®Google Scholar
• Born, P. H., J. B. Karl, and H. Montesinos-Yufa. 2018. The effect of damage cap reforms on medical malpractice insurance market conditions during periods of crises. Journal of Risk and Insurance 86(4): 1045–71. doi:10.1111/jori.12261
   Web of Science ®Google Scholar
• Born, P. H., and J. B. Karl. 2016. The effect of tort reform on medical malpractice insurance market trends. Journal of Empirical Legal Studies 13 (4):718–55.
   Web of Science ®Google Scholar
• Born, P., W. K. Viscusi, and T. Baker. 2009. The effects of tort reform on medical malpractice insurers' ultimate losses. Journal of Risk and Insurance 76 (1):197–219.
   Web of Science ®Google Scholar
• Boyer, M. M., E. Jacquier, and S. Van Norden. 2012. Are underwriting cycles real and forecastable? Journal of Risk and Insurance 79(4): 995–1015. doi:10.1111/j.1539-6975.2011.01458.x
   Web of Science ®Google Scholar
• Buchmueller, T., S. Miller, and M. Vujicic. 2016. How do providers respond to changes in public health insurance coverage? Evidence from adult Medicaid dental benefits. American Economic Journal: Economic Policy 8(4): 70–102. doi:10.1257/pol.20150004
   Web of Science ®Google Scholar
• Bureau of Health Workforce, Health Resources & Services Administration, U.S. Department of Health and Human Services. 2020. Designated health professional shortage areas: First quarter of fiscal year 2021, designated HPSA quarterly summary. Rockville, MD: HRSA. https://data.hrsa.gov/topics/health-workforce/shortage-areas
   Google Scholar
• Carrier, E. R., J. D. Reschovsky, M. M. Mello, R. C. Mayrell, and D. Katz. 2010. Physicians’ fears of malpractice lawsuits are not assuaged by tort reforms. Health Affairs 29(9): 1585–92. doi:10.1377/hlthaff.2010.0135
   Web of Science ®Google Scholar
• Choi, B. P., and M. A. Weiss. 2005. An empirical investigation of market structure, efficiency, and performance in property‐liability insurance. Journal of Risk and Insurance 72(4): 635–73. doi:10.1111/j.1539-6975.2005.00142.x
   Web of Science ®Google Scholar
• Courtemanche, C., A. Friedson, A. P. Koller, and D. I. Rees. 2019a. The Affordable Care Act and ambulance response times. Journal of Health Economics 67: article 102213. doi:10.1016/j.jhealeco.2019.05.010
   PubMed Web of Science ®Google Scholar
• Courtemanche, C., J. Marton, B. Ukert, A. Yelowitz, D. Zapata, and I. Fazlul. 2019b. The three‐year impact of the Affordable Care Act on disparities in insurance coverage. Health Services Research 54: 307–16. doi:10.1111/1475-6773.13077
   PubMed Web of Science ®Google Scholar
• Cummins, J. D., and P. M. Danzon. 1997. Price, financial quality, and capital flows in insurance markets. Journal of Financial Intermediation 6(1): 3–38. doi:10.1006/jfin.1996.0205
   Web of Science ®Google Scholar
• Dall, T., R. Chakrabarti, W. Iacobucci, A. Hansari, and T. West. 2018. The complexities of physician supply and demand 2017 update: projections from 2015 to 2030. Prepared for the Association of American Medical Colleges. Research report.
   Google Scholar
• Danzon, P. M. 1985. Liability and liability insurance for medical malpractice. Journal of Health Economics 4(4): 309–31. doi:10.1016/0167-6296(85)90011-6
   PubMed Web of Science ®Google Scholar
• Danzon, P. M. 1991. Liability for medical malpractice. Journal of Economic Perspectives 5(3): 51–69. doi:10.1257/jep.5.3.51
   Web of Science ®Google Scholar
• Decker, S. L., B. J. Lipton, and B. D. Sommers. 2017. Medicaid expansion coverage effects grew in 2015 with continued improvements in coverage quality. Health Affairs 36(5): 819–25. doi:10.1377/hlthaff.2016.1462
   Web of Science ®Google Scholar
• Doherty, N. A. 1981. The measurement of output and economies of scale in property-liability insurance. Journal of Risk and Insurance 48: 390–402. doi:10.2307/252719
   Web of Science ®Google Scholar
• Dube, A., T. W. Lester, and M. Reich. 2010. Minimum wage effects across state borders: Estimates using contiguous counties. Review of Economics and Statistics 92(4): 945–64. doi:10.1162/REST_a_00039
   Web of Science ®Google Scholar
• Dube, A., T. W. Lester, and M. Reich. 2016. Minimum wage shocks, employment flows, and labor market frictions. Journal of Labor Economics 34(3): 663–704. doi:10.1086/685449
   Web of Science ®Google Scholar
• Economic Research Service, U.S. Department of Agriculture. 2020. State fact sheets: United States. Washington, DC: ERS. https://data.ers.usda.gov/reports.aspx?ID=17854#P9eae4d3b0fb1469292b32de6a9886959_2_39iT0
   Google Scholar
• Foutz, J., S. Artiga, and R. Garfield. 2020. The role of Medicaid in rural America. Washington, DC: Kaiser Family Foundation.
   Google Scholar
• Frean, M., J. Gruber, and B. D. Sommers. 2017. Premium subsidies, the mandate, and Medicaid expansion: Coverage effects of the Affordable Care Act. Journal of Health Economics 53: 72–86.
   PubMed Web of Science ®Google Scholar
• Goldman, A. L., S. Woolhandler, D. U. Himmelstein, D. H. Bor, and D. McCormick. 2018. Out-of-pocket spending and premium contributions after implementation of the Affordable Care Act. JAMA Internal Medicine 178(3): 347–55. doi:10.1001/jamainternmed.2017.8060
   PubMed Web of Science ®Google Scholar
• Goldman, A. L., D. McCormick, J. S. Haas, and B. D. Sommers. 2018. Effects of the ACA’s health insurance marketplaces on the previously uninsured: A quasi-experimental analysis. Health Affairs 37(4): 591–99. doi:10.1377/hlthaff.2017.1390
   Web of Science ®Google Scholar
• Grace, M. F., and J. T. Leverty. 2013. How tort reform affects insurance markets. The Journal of Law, Economics, & Organization 29 (6):1253–78.
   Web of Science ®Google Scholar
• Grecu, A. M., D. M. Dave, and H. Saffer. 2019. Mandatory access prescription drug monitoring programs and prescription drug abuse. Journal of Policy Analysis and Management 38(1): 181–209. doi:10.1002/pam.22098
   PubMed Web of Science ®Google Scholar
• Guardado, J. R. 2017a. Policy research perspectives: medical liability claim frequency among US physicians. Research report. American Medical Association.
   Google Scholar
• Guardado, J. R. 2017b. Medical professional liability insurance indemnity payments, expenses and claim disposition, 2006–2015. Research report. American Medical Association.
   Google Scholar
• Harrington, S. E. 1992. Prices and profits in the liability insurance market. In Foundations of insurance economics, 626–84. Dordrecht, the Netherlands: Springer.
   Google Scholar
• Harrington, S. E., P. M. Danzon, and A. J. Epstein. 2008. “Crises” in medical malpractice insurance: Evidence of excessive price-cutting in the preceding soft market. Journal of Banking & Finance 32 (1):157–69.
   Web of Science ®Google Scholar
• Harrington, S., and R. E. Litan. 1988. Causes of the liability insurance crisis. Science 239(4841): 737–41. doi:10.1126/science.3340855
   PubMed Web of Science ®Google Scholar
• Harrington, S. E., P. M. Danzon, and A. J. Epstein. 2022. “Crises” in medical malpractice insurance: Evidence of excessive price-cutting in the preceding soft market. Journal of Banking and Finance 32(1): 157–69. doi:10.1016/j.jbankfin.2007.09.009
   Google Scholar
• He, Q., and S. Barkowski. 2020. The effect of health insurance on crime: Evidence from the Affordable Care Act Medicaid expansion. Health Economics 29(3): 261–77. doi:10.1002/hec.3977
   PubMed Web of Science ®Google Scholar
• Heaton, P., and C. Flint. 2020. Medicaid coverage expansions and liability insurance. Journal of Risk and Insurance 88: 29–51.
   Web of Science ®Google Scholar
• Huang, E. S., and K. Finegold. 2013. Seven million Americans live in areas where demand for primary care may exceed supply by more than 10 percent. Health Affairs 32(3): 614–21. doi:10.1377/hlthaff.2012.0913
   Web of Science ®Google Scholar
• Huh, J., and J. Lin. 2020. Medicaid policy and physician capacity constraints revisited. 9th Annual Conference of the American Society of Health Economists. ASHECON.
   Google Scholar
• Jena, A. B., S. Seabury, D. Lakdawalla, and A. Chandra. 2011. Malpractice risk according to physician specialty. New England Journal of Medicine 365(7): 629–36. doi:10.1056/NEJMsa1012370
   PubMed Web of Science ®Google Scholar
• Kaiser Family Foundation. 2017. Medicaid coverage of pregnancy and perinatal benefits: Results from a state survey. Research report.
   Google Scholar
• Karl, J. B., and C. Nyce. 2019. How cellphone bans affect automobile insurance markets. Journal of Risk and Insurance 86 (3):567–93.
   Web of Science ®Google Scholar
• Kessler, D. P. 2011. Evaluating the medical malpractice system and options for reform. Journal of Economic Perspectives 25 (2):93–110. doi:10.1257/jep.25.2.93
   PubMed Web of Science ®Google Scholar
• Kessler, D. P., and M. B. McClellan. 2002. How liability law affects medical productivity. Journal of Health Economics 21(6): 931–55. doi:10.1016/S0167-6296(02)00076-0
   PubMed Web of Science ®Google Scholar
• Kirch, D. G., M. K. Henderson, and M. J. Dill. 2012. Physician workforce projections in an era of health care reform. Annual Review of Medicine 63: 435–45.
   PubMed Web of Science ®Google Scholar
• Luo, J., H. Chen, and M. F. Grace. 2022. Medicaid expansion and medical liability costs. Journal of Risk and Insurance forthcoming. doi:10.1111/jori.12376
   Web of Science ®Google Scholar
• Medicaid and CHIP Payment and Access Commission. 2021. Medicaid and rural health. Washington, DC: https://www.macpac.gov/wp-content/uploads/2021/04/Medicaid-and-Rural-Health.pdf
   Google Scholar
• Martin, A. B., M. Hartman, B. Washington, A. Catlin, and the National Health Expenditure Accounts Team. 2017. National health spending: faster growth in 2015 as coverage expands and utilization increases. Health Affairs 36(1): 166–76. doi:10.1377/hlthaff.2016.1330
   Web of Science ®Google Scholar
• Mazurenko, O., C. P. Balio, R. Agarwal, A. E. Carroll, and N. Menachemi. 2018. The effects of Medicaid expansion under the ACA: A systematic review. Health Affairs 37(6): 944–50. doi:10.1377/hlthaff.2017.1491
   Web of Science ®Google Scholar
• Meinhofer, A., and A. E. Witman. 2018. The role of health insurance on treatment for opioid use disorders: Evidence from the Affordable Care Act Medicaid expansion. Journal of Health Economics 60: 177–97. doi:10.1016/j.jhealeco.2018.06.004
   PubMed Web of Science ®Google Scholar
• Mello, M. M., A. Chandra, A. A. Gawande, and D. M. Studdert. 2010. National costs of the medical liability system. Health Affairs 29(9): 1569–77. doi:10.1377/hlthaff.2009.0807
   Web of Science ®Google Scholar
• Mello, M. M., Studdert, D. M., and Kachalia, A. 2014. The medical liability climate and prospects for reform. JAMA 312(20): 2146–55. doi:10.1001/jama.2014.10705
   PubMed Web of Science ®Google Scholar
• Miller, S., and L. R. Wherry. 2017. Health and access to care during the first 2 years of the ACA Medicaid expansions. New England Journal of Medicine 376(10): 947–56. doi:10.1056/NEJMsa1612890
   PubMed Web of Science ®Google Scholar
• Miller, S., and L. R. Wherry. 2019. Four years later: Insurance coverage and access to care continue to diverge between ACA Medicaid expansion and non-expansion states. AEA Papers and Proceedings 109: 327–33. doi:10.1257/pandp.20191046
   Google Scholar
• Miller, S., N. Johnson, and L. R. Wherry. 2019. Medicaid and mortality: New evidence from linked survey and administrative data (No. w26081). National Bureau of Economic Research.
   Google Scholar
• Moy, E., M. C. Garcia, B. Bastian, L. M. Rossen, D. D. Ingram, M. Faul, Gr. M. Massetti, et al. 2017. Leading causes of death in nonmetropolitan and metropolitan areas—United States, 1999–2014. Morbidity and Mortality Weekly Report 66(1): 1–8. doi:http://dx.doi.org/10.15585/mmwr.ss6601a1.
   PubMedGoogle Scholar
• National Association of Insurance Commissioners (NAIC). 2019. U.S. property & casualty and title insurance industries report. Research Report.
   Google Scholar
• National Center for Health Statistics, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services. 2018. Health, United States, 2018: Table 46 Medicaid coverage among persons under age 65, by selected characteristics: United States, selected years 1984–2017. Hyattsville, MD:NCHS. https://www.cdc.gov/nchs/data/hus/2018/046.pdf.
   Google Scholar
• Nikpay, S., T. Buchmueller, and H. Levy. 2015. Early Medicaid expansion in Connecticut stemmed the growth in hospital uncompensated care. Health Affairs 34 (7):1170–9. doi:10.1377/hlthaff.2015.0107
   Web of Science ®Google Scholar
• Paik, M., B. Black, and D. A. Hyman. 2017. Damage caps and defensive medicine, revisited. Journal of Health Economics 51:84–97.
   PubMed Web of Science ®Google Scholar
• Peng, L., X. Guo, and C. D. Meyerhoefer. 2020. The effects of Medicaid expansion on labor market outcomes: evidence from border counties. Health Economics 29(3): 245–60. doi:10.1002/hec.3976
   PubMed Web of Science ®Google Scholar
• Sargen, M., R. S. Hooker, and R. A. Cooper. 2011. Gaps in the supply of physicians, advance practice nurses, and physician assistants. Journal of the American College of Surgeons 212(6): 991–99. doi:10.1016/j.jamcollsurg.2011.03.005
   PubMed Web of Science ®Google Scholar
• Sommers, B. D., E. Arntson, G. M. Kenney, and A. M. Epstein. 2013. Lessons from early Medicaid expansions under health reform: interviews with Medicaid officials. Medicare & Medicaid Research Review 3 (4). doi:10.5600/mmrr.003.04.a02
   PubMedGoogle Scholar
• Sommers, B. D., G. M. Kenney, and A. M. Epstein. 2014. New evidence on the Affordable Care Act: coverage impacts of early Medicaid expansions. Health Affairs 33 (1):78–87. doi:10.1377/hlthaff.2013.1087
   Web of Science ®Google Scholar
• Soni, A., M. Hendryx, and K. Simon. 2017. Medicaid expansion under the Affordable Care Act and insurance coverage in rural and urban areas. Journal of Rural Health 33(2): 217–26. doi:10.1111/jrh.12234
   PubMed Web of Science ®Google Scholar
• Soni, A., K. Simon, J. Cawley, and L. Sabik. 2018. Effect of Medicaid expansions of 2014 on overall and early-stage cancer diagnoses. American Journal of Public Health 108(2): 216–18. doi:10.2105/AJPH.2017.304166
   PubMed Web of Science ®Google Scholar
• Stamm, J. A., K. A. Korzick, K. Beech, and K. E. Wood. 2016. Medical malpractice: reform for today's patients and clinicians. The American Journal of Medicine 129 (1):20–25.
   PubMed Web of Science ®Google Scholar
• Swaminathan, S., B. D. Sommers, R. Thorsness, R. Mehrotra, Y. Lee, and A. N. Trivedi. 2018. Association of Medicaid expansion with 1-year mortality among patients with end-stage renal disease. JAMA 320(21): 2242–50. doi:10.1001/jama.2018.16504
   PubMed Web of Science ®Google Scholar
• Taheri, P. A., D. A. Butz, S. Anderson, R. Boothman, O. L. Blanco, L. J. Greenfield, and M. M. Mulholland. 2006. Medical liability—The crisis, the reality, and the data: The University of Michigan story. Journal of the American College of Surgeons 203(3): 290–96. doi:10.1016/j.jamcollsurg.2006.05.011
   PubMed Web of Science ®Google Scholar
• Viscusi, W. K., and P. H. Born. 2005. Damages caps, insurability, and the performance of medical malpractice insurance. Journal of Risk and Insurance 72 (1):23–43.
   Web of Science ®Google Scholar
• Weiss, M. A., and B. P. Choi. 2008. State regulation and the structure, conduct, efficiency and performance of US auto insurers. Journal of Banking and Finance 32(1): 134–56. doi:10.1016/j.jbankfin.2007.09.010
   Web of Science ®Google Scholar
• Weiss, M. A., S. Tennyson, and L. Regan. 2010. The effects of regulated premium subsidies on insurance costs: an empirical analysis of automobile insurance. Journal of Risk and Insurance 77 (3):597–624.
   Web of Science ®Google Scholar
• Wherry, L. R., and S. Miller. 2016. Early coverage, access, utilization, and health effects of the Affordable Care Act Medicaid expansions: A quasi-experimental study. Annals of Internal Medicine 164(12): 795–803. doi:10.7326/M15-2234
   PubMed Web of Science ®Google Scholar
• Xu, X., K. A. Siefert, P. D. Jacobson, J. R. Lori, and S. B. Ransom. 2008. The effects of medical liability on obstetric care supply in Michigan. American Journal of Obstetrics and Gynecology 198(2): 205–e1.
   PubMed Web of Science ®Google Scholar