A question for healthcare economists (update)

I have a question for healthcare economists. Bear with me through a few bullet points to get there. [Note update at end: there's an answer of sorts in Kenneth Thorpe's analysis of Bernie Sanders' plan.]

• It's well known that the U.S. pays far more for healthcare -- per capita, per procedure, and as percentage of GDP --  than any of its developed-world peers. According to the OECD, the US spent 16.4% of GDP on healthcare in 2013. The next highest spenders, Holland and Switzerland, spent 11.1% of GDP.
  
• A main reason, if not the driving reason, is that in the U.S. healthcare payers are fragmented, diminishing their buying power. Private insurers and self-funded employers pay rates that may average 150-160% of Medicare rates.
  
  

What the ACA can't cure

I recently referred to Investor's Business Daily reporter Jed Graham's coverage of the ACA as "adversarial." He objected. I responded, "I don't ignore or minimize ACA flaws but would not object to a characterization of my writing on it as "sympathetic."

That set me thinking about everything that troubles me about the ACA -- or, more accurately, things that trouble me about the US healthcare system that the ACA is unlikely to fix -- though it may help catalyze reform on several of these fronts. Here's the list:

1. All private health insurance in the U.S. is inadequate -- thanks to the shameful out-of-network billing, balance billing, and creative billing by hospitals, physicians and other providers documented in sickening detail by Elisabeth Rosenthal in her Paying Till it Hurts series. We are in the grip of a depraved system in which hospitals often operate as free billing zones and payers' attempts to control costs just generate new loopholes.

2. For the unsubsidized and lightly subsidized, private insurance on the ACA exchanges is too expensive. Or rather, medical care obtained under the insurance is too expensive.  One of the law's strengths is the Cost Sharing Reduction (CSR) that reduces deductibles and out-of-pocket costs for buyers with incomes below 200% of the Federal Poverty Level to levels comparable to those offered in top-grade employer-sponsored insurance (much more modest CSR is offered to those between 200% and 250% FPL).  Those cost control come into play if low income buyers choose silver plans (fortunately, most do) and if  they are not hit by the kind of out-of-network and balance billing that Rosenthal documents. Those above 200% FPL, however, have to choose between high monthly premiums and often sky-high deductibles, average over $5,000 for bronze plans (which may be tempting to many at the upper range of subsidy eligibility).

What Avik Roy won't tell you about healthcare in Switzerland and Singapore

Avik Roy so despises the Affordable Care Act that he wants it to swallow Medicare and Medicaid.

According to Roy's latest sketch of a conservative plan to offer universal health insurance, Medicare and Medicaid are the chief culprit in the United States' uniquely expensive healthcare system -- notwithstanding that they pay less per procedure than private insurers and patients, and that most experiments in alternatives to fee-for-service payment are located within them.

In Roy's free-market healthcare vision, Medicare and Medicaid patients would be transitioned onto deregulated health insurance exchanges, where insurers would be free to offer even skimpier insurance than the current exchange bronze plans, designed to cover just 60% of average patient costs. They might also be free to expand the ACA's age-rating, which limits the ratio of older patients' premiums to young patients' to 3-to-1, and be freed from offering the ACA's minimum essential benefits.

To flesh out this vision, Roy touts the virtues of his two favorite national systems: those of Singapore, which features mandatory individual health savings accounts (HSAs), and  Switzerland, in which everyone buys insurance on private exchanges (subsidized for about a third of the population). But as is his wont, Roy fails to mention the feature that enables each of these systems work: strong government influence over pricing.

Take first Roy's sketch of Switzerland's free market system: