The competitive implications of the Affordable Care Act for health insurance merger review

Geoffrey Manne & Ben Sperry —  5 October 2015

Last week concluded round 3 of Congressional hearings on mergers in the healthcare provider and health insurance markets. Much like the previous rounds, the hearing saw predictable representatives, of predictable constituencies, saying predictable things.

The pattern is pretty clear: The American Hospital Association (AHA) makes the case that mergers in the provider market are good for consumers, while mergers in the health insurance market are bad. A scholar or two decries all consolidation in both markets. Another interested group, like maybe the American Medical Association (AMA), also criticizes the mergers. And it’s usually left to a representative of the insurance industry, typically one or more of the merging parties themselves, or perhaps a scholar from a free market think tank, to defend the merger.

Lurking behind the public and politicized airings of these mergers, and especially the pending Anthem/Cigna and Aetna/Humana health insurance mergers, is the Affordable Care Act (ACA). Unfortunately, the partisan politics surrounding the ACA, particularly during this election season, may be trumping the sensible economic analysis of the competitive effects of these mergers.

In particular, the partisan assessments of the ACA’s effect on the marketplace have greatly colored the Congressional (mis-)understandings of the competitive consequences of the mergers.  

Witness testimony and questions from members of Congress at the hearings suggest that there is widespread agreement that the ACA is encouraging increased consolidation in healthcare provider markets, for example, but there is nothing approaching unanimity of opinion in Congress or among interested parties regarding what, if anything, to do about it. Congressional Democrats, for their part, have insisted that stepped up vigilance, particularly of health insurance mergers, is required to ensure that continued competition in health insurance markets isn’t undermined, and that the realization of the ACA’s objectives in the provider market aren’t undermined by insurance companies engaging in anticompetitive conduct. Meanwhile, Congressional Republicans have generally been inclined to imply (or outright state) that increased concentration is bad, so that they can blame increasing concentration and any lack of competition on the increased regulatory costs or other effects of the ACA. Both sides appear to be missing the greater complexities of the story, however.

While the ACA may be creating certain impediments in the health insurance market, it’s also creating some opportunities for increased health insurance competition, and implementing provisions that should serve to hold down prices. Furthermore, even if the ACA is encouraging more concentration, those increases in concentration can’t be assumed to be anticompetitive. Mergers may very well be the best way for insurers to provide benefits to consumers in a post-ACA world — that is, the world we live in. The ACA may have plenty of negative outcomes, and there may be reasons to attack the ACA itself, but there is no reason to assume that any increased concentration it may bring about is a bad thing.

Asking the right questions about the ACA

We don’t need more self-serving and/or politicized testimony We need instead to apply an economic framework to the competition issues arising from these mergers in order to understand their actual, likely effects on the health insurance marketplace we have. This framework has to answer questions like:

  • How do we understand the effects of the ACA on the marketplace?
    • In what ways does the ACA require us to alter our understanding of the competitive environment in which health insurance and healthcare are offered?
    • Does the ACA promote concentration in health insurance markets?
    • If so, is that a bad thing?
  • Do efficiencies arise from increased integration in the healthcare provider market?
  • Do efficiencies arise from increased integration in the health insurance market?
  • How do state regulatory regimes affect the understanding of what markets are at issue, and what competitive effects are likely, for antitrust analysis?
  • What are the potential competitive effects of increased concentration in the health care markets?
  • Does increased health insurance market concentration exacerbate or counteract those effects?

Beginning with this post, at least a few of us here at TOTM will take on some of these issues, as part of a blog series aimed at better understanding the antitrust law and economics of the pending health insurance mergers.

Today, we will focus on the ambiguous competitive implications of the ACA. Although not a comprehensive analysis, in this post we will discuss some key insights into how the ACA’s regulations and subsidies should inform our assessment of the competitiveness of the healthcare industry as a whole, and the antitrust review of health insurance mergers in particular.

The ambiguous effects of the ACA

It’s an understatement to say that the ACA is an issue of great political controversy. While many Democrats argue that it has been nothing but a boon to consumers, Republicans usually have nothing good to say about the law’s effects. But both sides miss important but ambiguous effects of the law on the healthcare industry. And because they miss (or disregard) this ambiguity for political reasons, they risk seriously misunderstanding the legal and economic implications of the ACA for healthcare industry mergers.

To begin with, there are substantial negative effects, of course. Requiring insurance companies to accept patients with pre-existing conditions reduces the ability of insurance companies to manage risk. This has led to upward pricing pressure for premiums. While the mandate to buy insurance was supposed to help bring more young, healthy people into the risk pool, so far the projected signups haven’t been realized.

The ACA’s redefinition of what is an acceptable insurance policy has also caused many consumers to lose the policy of their choice. And the ACA’s many regulations, such as the Minimum Loss Ratio requiring insurance companies to spend 80% of premiums on healthcare, have squeezed the profit margins of many insurance companies, leading, in some cases, to exit from the marketplace altogether and, in others, to a reduction of new marketplace entry or competition in other submarkets.

On the other hand, there may be benefits from the ACA. While many insurers participated in private exchanges even before the ACA-mandated health insurance exchanges, the increased consumer education from the government’s efforts may have helped enrollment even in private exchanges, and may also have helped to keep premiums from increasing as much as they would have otherwise. At the same time, the increased subsidies for individuals have helped lower-income people afford those premiums. Some have even argued that increased participation in the on-demand economy can be linked to the ability of individuals to buy health insurance directly. On top of that, there has been some entry into certain health insurance submarkets due to lower barriers to entry (because there is less need for agents to sell in a new market with the online exchanges). And the changes in how Medicare pays, with a greater focus on outcomes rather than services provided, has led to the adoption of value-based pricing from both health care providers and health insurance companies.

Further, some of the ACA’s effects have  decidedly ambiguous consequences for healthcare and health insurance markets. On the one hand, for example, the ACA’s compensation rules have encouraged consolidation among healthcare providers, as noted. One reason for this is that the government gives higher payments for Medicare services delivered by a hospital versus an independent doctor. Similarly, increased regulatory burdens have led to higher compliance costs and more consolidation as providers attempt to economize on those costs. All of this has happened perhaps to the detriment of doctors (and/or patients) who wanted to remain independent from hospitals and larger health network systems, and, as a result, has generally raised costs for payors like insurers and governments.

But much of this consolidation has also arguably led to increased efficiency and greater benefits for consumers. For instance, the integration of healthcare networks leads to increased sharing of health information and better analytics, better care for patients, reduced overhead costs, and other efficiencies. Ultimately these should translate into higher quality care for patients. And to the extent that they do, they should also translate into lower costs for insurers and lower premiums — provided health insurers are not prevented from obtaining sufficient bargaining power to impose pricing discipline on healthcare providers.

In other words, both the AHA and AMA could be right as to different aspects of the ACA’s effects.

Understanding mergers within the regulatory environment

But what they can’t say is that increased consolidation per se is clearly problematic, nor that, even if it is correlated with sub-optimal outcomes, it is consolidation causing those outcomes, rather than something else (like the ACA) that is causing both the sub-optimal outcomes as well as consolidation.

In fact, it may well be the case that increased consolidation improves overall outcomes in healthcare provider and health insurance markets relative to what would happen under the ACA absent consolidation. For Congressional Democrats and others interested in bolstering the ACA and offering the best possible outcomes for consumers, reflexively challenging health insurance mergers because consolidation is “bad,” may be undermining both of these objectives.

Meanwhile, and for the same reasons, Congressional Republicans who decry Obamacare should be careful that they do not likewise condemn mergers under what amounts to a “big is bad” theory that is inconsistent with the rigorous law and economics approach that they otherwise generally support. To the extent that the true target is not health insurance industry consolidation, but rather underlying regulatory changes that have encouraged that consolidation, scoring political points by impugning mergers threatens both health insurance consumers in the short run, as well as consumers throughout the economy in the long run (by undermining the well-established economic critiques of a reflexive “big is bad” response).

It is simply not clear that ACA-induced health insurance mergers are likely to be anticompetitive. In fact, because the ACA builds on state regulation of insurance providers, requiring greater transparency and regulatory review of pricing and coverage terms, it seems unlikely that health insurers would be free to engage in anticompetitive price increases or reduced coverage that could harm consumers.

On the contrary, the managerial and transactional efficiencies from the proposed mergers, combined with greater bargaining power against now-larger providers are likely to lead to both better quality care and cost savings passed-on to consumers. Increased entry, at least in part due to the ACA in most of the markets in which the merging companies will compete, along with integrated health networks themselves entering and threatening entry into insurance markets, will almost certainly lead to more consumer cost savings. In the current regulatory environment created by the ACA, in other words, insurance mergers have considerable upside potential, with little downside risk.


In sum, regardless of what one thinks about the ACA and its likely effects on consumers, it is not clear that health insurance mergers, especially in a post-ACA world, will be harmful.

Rather, assessing the likely competitive effects of health insurance mergers entails consideration of many complicated (and, unfortunately, politicized) issues. In future blog posts we will discuss (among other things): the proper treatment of efficiencies arising from health insurance mergers, the appropriate geographic and product markets for health insurance merger reviews, the role of state regulations in assessing likely competitive effects, and the strengths and weaknesses of arguments for potential competitive harms arising from the mergers.