Here's Paul Krugman explaining a mystical concept, "core inflation":
"Some prices in the economy fluctuate all the time in the face of supply and demand; food and fuel are the obvious examples. Many prices, however, don’t fluctuate this way — they’re set by oligopolistic firms, or negotiated in long-term contracts, so they’re only revised at intervals ranging from months to years....
[B]ecause they aren’t revised very often, they’re set with future inflation in mind...
[W]e’d like to keep track of this sort of inflation inertia, both on the upside and on the downside — because just as embedded inflation is hard to get rid of, so is embedded deflation (ask the Japanese)."
I hasten to note that the dismal science, as practiced by our leading neoliberals, has no "real" price setting model -- just this smudgery, this metaphorical pataphysical mush.
"[O]nce expectations of, say, persistent 10 percent inflation have become “embedded” in the economy, it will take a major period of slack — years of high unemployment — to get that rate down."
"Oh the pain, the pain!" as a great space coward, shown up top, was wont to cry.
Fortunately, we don't need a model of how the system works, nor even face the pain of adjustment -- not if we sieze power and superimpose a system our Gosplan can easily construct and enforce. Enter the Lerner-Vickrey-Colander solution.
Say we wanted to control the prices of the health sector -- maybe keep 'em on track with the overall movement of the price level.
Simple: you cap the markup over non-sector inputs for all sector firms, by creating a sector-wide markup warrant market.
This essentially limits depreciation charges, wages, salaries, as well as profits -- i.e. the same value that is taxed by a value added tax. The two would work well together in a whole-system application of markup caps (MUC) if, say, the corporate income tax (CIT) was modified into a value added tax (VAT).
Prolly firms would get issued a flow of warrant "credits". If a firm wants to increase mark up above warranted levels, the firm has buy the warrants with cash on the warrant market.
All this formally parallels the carbon warrant notions, of course -- I hope without the wild croaks of dismay from the pwog pond.
By the way, you could use a Pigou tax here too -- that was also devised in the roaring 70's by Weintraub et al. I favor the cap and trade mechanism because it sets the inflation rate, leaving the markup cost to the vagaries of the market, whereas the Pigou tax sets the mark up cost, leaving the ultimate inflation rate uncertain.
Health care, of course, is quite a different application than carbon, where I reluctantly prefer the Pigou tax method.
Either approach would be a lot better than being bondservants of the anarchy of corporate-administered pricing -- especially as we face.up ahead, looming at us through the windshield, the dark side of price-expectational inertia -- DEFLATION!
As Paul K puts it:
"what these measures show [i.e. various metrics of "core inflation"] is an ongoing process of disinflation that could, in not too long, turn into outright deflation"
... and folks, we don't want to get into that tar pit.