So, we've all heard that USA spends far more money on healthcare than other developed countries and by some measures gets worse results (by other measures gets better).
In any case virtually every politician, no matter of ideology seems to say the costs are too high and getting higher and this has to be addressed. Of course, then you get their favorite recipe of how to fix it, usually reduced to ideological talking points.

Now, if you think rationally it's not all that complicated. Reduced costs need to come from one, or few of the following components:
1) Reduced services (patients get less care).
2) Reduced cost of services (doctors/pharmaceuticals/equipment makers get less for what they offer).
3) Reduced overhead (insurers get less).

Of course, the tricky point is to ensure that 'less is more', i.e. improve on the inefficiencies, not remove the good stuff.

So, where do you think the biggest inefficiencies are?
Do you have and idea how large they are (no point chasing 0.001% inefficiency if there's a 5% one)?
And more importantly, is your opinion based on relatively rigorous research (got a reference?), or is it due to politics/ideology/common sense?