That sounds like they're keeping down the cost, not the other way around. I don't think it's the cost of what is actually being paid to healthcare givers that's the problem (just as the wages paid to college instructors is not really the problem). It's the insurance companies, the billing industry, bankers, and all other profit-takers in between.
The open question is who should set the prices of doctors, other health professionals, and hospitals (for the use of their equipment and facilities.
One option is for the state to take over the means of production, set the prices and own the facilities and set the wage rates. Here competition for services is gone. Monetary incentives for medical professionals is no longer relevant. Do we dream that the administrative cost has gone away, or is lessened, because the government is in charge.
Another option is for doctors and others to organize in groups and buy the hospitals (the HMO model). Here individuals would be free to chose their HMO. Each HMO might have different plans.
We could have insurance companies gather tens of thousands of members, and then set rates for any set of doctors who will accept those rates. Is it worth nothing for one entity to negotiate rates. Do we believe that individuals would do better negotiating on their own.
The government could become the insurance company (Medicare instead of the HMO, or the BCBS).
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SOME OPEN QUESTIONS
1) How do we best minimize administrative costs?
2) How do we reduce the overall cost of highest quality service?
3) How do we incentivize doctors and hospitals for developing improved methods, and processes?
It is NOT at all clear to me that taking the PROFIT OUT is the answer. Is the administrative costs of an HMO really lower than that of a government owned and operated system? Give me Kaiser thank you.
Personally, I think that a single-payer system like Medicare works fine. Do we think that Medicare is a failed system merely because it could be a better administrator, or because there are many improvements that could be made?
I believe that supplementary insurance plans are a good idea. At very least, there should many choices of plan. Again, is it really wrong to pay insurance companies to the administration? Are they really so much worse at than the government? Standardization of forms is a great need.
BOTTOM LINE FOR ME
It is not all clear which system provides the best care for the lowest long-term cost. And it is certainly not clear that a government owned system for doctors and hospitals is a very good idea at all. It may be better than the US, but that is a very low bar indeed.
And just BTW, how would eliminating supplemental insurance work? The government wouldn't cover everything in the way that everyone once. Some would be willing to pay for more service. Are we to disallow this, or forbid people to form groups to negotiate?