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You are here: Home / Anderson On Health Insurance / Medicaid managed care entry and ACA premiums

Medicaid managed care entry and ACA premiums

by David Anderson|  June 23, 20219:02 am| 3 Comments

This post is in: Anderson On Health Insurance

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At the American Society of Health Economist conference (ASHEcon), Yev Feynman of Boston University has jointly presented some work by myself, Paul Shafer and Yev on the impact on gross and benchmark premiums when Medicaid Managed Care (MMC)companies enter ACA markets.

Why should we care?

MMC are one of the big sectors in the ACA individual market.  We have very good reason to suspect that MMCs are fundamentally different than big commercial insurers like Aetna or Cigna in how they structure their business model and their products and who they have core competency at covering.  We have observed that MMCs have lower quality ratings on a few measures and that their premiums tend to be low.  Some of this may be narrow networks and aggressive utilization and some may be risk skimming on premium.  We are also seeing a massive increase in the number of insurers offering products on the marketplace, so an understanding of what is going on and what to expect by type of insurer may be valuable.

So what happens to both the gross premium level and benchmark premium levels?

Impact of MMC entry on Premiums in the ACA

In our instrumental variable approach we find an obvious thing!

  • Gross premiums go down

This is not surprising.  MMCOs are likely low cost carriers, so this should be  downward pressure on premiums.

More importantly, premiums for a particular type of plan go down even more than the general price level decline.  The benchmark plan is the second cheapest silver plan.  The subsidized population is sensitive to the premium spread between the plan that they choose and the benchmark plan’s premium in order to determine the net premium that they pay.  When the benchmark plan premium increases faster than the general price level, net affordability increases for the subsidized population.  Conversely, when the benchmark plan premium decreases faster than the general price level, net affordability decreases for the subsidized population.  Subsidized buyers who are not buying zero premium plans have a preference towards low price levels except for the benchmark.  This is effectively what happened with Silverloading when that principle is taken to the extreme.

Insurers have a strong incentive to offer either the cheapest or second cheapest silver plan.  Those two plans get most of the Cost-Sharing Reduction (CSR) eligible enrollment, and the CSR-eligible population is most of the enrollment pool.  Plan characteristics such as bigger networks, or better brand unobservables matter a little bit and people are willing to pay for them a little bit, but most of the competition is for people who are buying almost entirely on price.

So on the premium story, the introduction of Medicaid Managed Care into a market means unsubsidized buyers are seeing cheaper plans, the federal government spends a bit less in subsidies on both a direct and likely an indirect path, and subsidized buyers pay a bit more unless they buy the benchmark plan and then they pay the same.

 

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3Comments

  1. 1.

    Ohio Mom

    June 23, 2021 at 9:37 am

    I am in an Ohio-wide Facebook group for people with disability. I joined of course because Ohio Son has autism but it turns out the group is mainly adults with complicated medical conditions, with a sprinkling of parents of children with complicated medical conditions. All rely heavily on home and personal health care aides and nurses.

    They have all been forced into Medicaid managed care plans — Ohio Son in contrast, has a Medicaid Waiver which includes traditional Medicaid, which is the best coverage plan any of us has ever had. But funding streams to support people with disabilities are a tangled web, and they are a group forced into the snarl of that web which is managed care.

    Anyway, this long introduction is to say, Ohioans with disabilities that include complicated medical conditions HATE, HATE, HATE their managed care plans. They are outliers, medically, and the medical services they need are expensive and extensive.

    It seems to me a very bad match, to put people who are going to have very idiosyncratic needs in a system that is designed to reduce choices but looking through the lens of the state pinching pennies, it is a very elegant solution.

  2. 2.

    David Anderson

    June 23, 2021 at 10:45 am

    @Ohio Mom: There is a really interesting (and likely to be good, given the authors), working paper released this week on Mediciad Managed Care  — it is usually fine for people who don’t have unusual conditions but pretty bad for people at the tail end of the distribution… I’ll write more once I have had time to really read and digest the paper.

  3. 3.

    Ohio Mom

    June 23, 2021 at 1:15 pm

    It’s good to know health policy wonks are thinking about this issue.

    The “poster child” for the mismatch between managed care and the disabled people at the tail end has to be Carrie Ann Lucas. She had a constellation of disabilities and health conditions that should have been taken into consideration when she needed an antibotic for an upper respiratory infection.

    Instead of the preferred but more expensive drug, UHC insisted on her using a cheaper one. This decision set off a cascade of medical reactions that ultimately killed her.

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