As they buy less bonds, their price drops, as the price drops risk-free yields drift higher. As risk-free yields drift higher, consumer credit becomes simultaneously more expensive and less available, as lenders allocate less of their capital to risky lending and more to risk-free (government) lending. This credit shrinkage causes the deflationary effect.
The trouble is that every time the fed has even hinted at this on past occasions (stretching back a decade), an immediate violent market event has usually followed. https://www.investopedia.com/terms/t/taper-tantrum.asp
We need to start rolling back on all of the stimulus and COVID rules we've implemented to encourage people to return back to work.
Once this happens, I believe production will increase and inflation will dissipate quicker.
Why would a bank take FED money in?
selling bonds or increasing reserve requirements are two of the fairly straight-forward tools central banks have to reduce money supply.
So that leaves us with selling bonds.
As for the IOUs from banks: It is an interesting question how much stocks are bought with that kind of pseudo money. Since banks probably do not give those IOUs to people who want to buy stocks with them, I would think not so much.
The IOUs would have to go through zombie companies which give the IOUs to their employees who then buy stocks with them.
It just has to stop buying them, and maybe actually start selling from their giant portfolio...
That's not a reasonable take (in the context of the question). Controlling reserve rates controls the money supply, and the money supply is relevant when it comes to the level of inflation in the economy. What you're referencing is the 'monetary base'. (which is actually only a relatively small fraction of money in circulation).
I explained why I think for that for this context the monetary base is the right type of money to look at.
For crypto and stock we do the same. People say Bitcoin is capped at 21 million and stocks in circulation is the amount the companies issued. If someone owes someone else a coin or a share, we do not count that towards the supply.
But the main reason that stocks are high is probably that there is so much money out there:
https://www.federalreserve.gov/monetarypolicy/bst_recenttren...
I think the fed would need to take back money to reverse the inflation. I don't know via which mechanisms they would do this. Does anybody here know?
It is important to remember that this would bankrupt the government unless the government finds ways to raise capital elsewhere. So we will probably not see any de-inflationary actions unless we also see higher taxes.
My feeling: We will see a fast rise in taxes and a slow rise in interest rates.
In other words: Governments will try to take away peoples money and only afterwards slowly make money more valuable again. Maybe. Maybe they will just keep the value of money at the current level.