Where are they storing this money? I assume in banks- in which case, what's the problem? Banks don't just let money sit there, they invest it/loan it out.
Except when they don't.
The banks you mean? So long as their is a viable place to direct the money that is more profitable then simply letting the money sit in their vaults, the banks will direct the money there. During a collapse(ala late 2008), sure they might sit on their cash. But not now when theirs a significant opportunity cost of leaving money inert in their vaults.
