One study indicated that changing incentives may have reduced cost growth.
This cost growth explains the increasing dependency of this kind of art on state subsidies.
Otherwise, he warns, the program "is almost certain to suffer early, significant cost growth and schedule slippage."
The real question is how far the ACA will go in slowing cost growth.
Numerous research reports have been published characterizing cost growth resulting from poor planning and design practices.
Limiting cost growth would spare the millions of insured Americans the fear they will lose benefits in the future.
Industry surveys point to similar cost growth nationwide.
By the end of the decade, at the present rate of cost growth, the price of a family insurance plan will rise to $27,000.
Medicare is one of the largest and fastest growing programs in government and no fiscal plan can be complete without addressing its unsustainable cost growth.
"At some projects where we've used this process, the cost growth has been less than 1 percent."