So central banks try to counter that: "Your money will be worth less in the future, so spend it now. Or make an investment that will produce returns greater than the rate of inflation." So they spend their money, creating demand, and jobs materialize (hopefully) to fill that demand.
For the last decade-plus we've had a combination of anticipation of disaster, and banks flooding the system with cash to assuage that fear. That's like pressing both the accelerator and the brake as hard as you can -- you don't go anywhere until suddenly something gives, and then the entire thing goes to hell in a handbasket right quick.
When? If I knew that, I'd be rich. The general advice is that the market can remain irrational longer than you can remain solvent.
But who knows?
Inflation is entirely about the supply and demand for money. You were just calculating it wrong.
The dollar's relative value to goods and services isn't rising... and it's because of countries like China that make goods and services for so few dollars.
Think about it - I can go to oldnavy.com and buy a shirt for $9. That shirt was made literally on the other side of the world, shipped, marketed, sold, packaged and delivered for $9.
The disparity in incomes and environmental protections between the U.S. and other countries makes it very difficult to trigger price inflation. And things just keep getting cheaper. Prices don't rise when supply of goods and services keeps pace with the demand from dollars.
Even if they were to magically slice 20% of the share price, it would immediately start a buying rally. Anything that would have a permanent effect on the share price would probably have to threaten the very existence of the company.
That isn't to say that handing out wads of cash wouldn't eventually lead to inflation, but that the systemic lag and second-/third-order effects might make the process so unpredictable that by the time inflation begins to tick up, the central bank would have no way to provide effective control.
It's a tiger that you don't want to let out of the cage.
This policy likely has 2nd and 3rd order effects, as it will hurt other countries, but that's a simple strategy to artificially create inflation in CPI items that's fail-proof in execution. Prices will go up.
Restricting imports is much better than just giving people money, because they can use the extra money you give them on things like paying down their debt, or just put it in the bank and save it. Instead, you want to target the things they already buy and make those things scarce, so their price goes up (the definition of "inflation"). Food, fuel, and electricity are the easiest to monkey with because people are always buying them, and don't have much of a choice.
(If you can't restrict imports (or don't want to), you can simply print money to buy up the local inventory yourself and trash it/warehouse it/export it out of the country/set it on fire. The effect is the same: less inventory for the general population is available, causing the price of whatever is left to go up.)
It's much more difficult to create economic growth by persuading banks to lend more.
So they ended up printing more and more till, it all corrected at once and hyperinflation was already here before they could roll back their currency printing machines.
They took a practical approach to managing inflation yet paying off debt obligations with more currency but didn't realize it all could backfire - they didn't do something as stupid as others will have you believe.
Zimbabwe faced similar problems after disowning their most productive agricultural providers, reducing supply.
https://en.wikipedia.org/wiki/Hyperinflation#Germany_(Weimar...