If they are that aware of how much of a problem their money supply is, then they need to take steps to reduce it, not ruin it further with increasing amounts of higher denomination bills and coins. And stop buying US dollars! Give a time table for those to be used, like 6 months, and then stop all auctions and purchasing of dollars for domestic usage.
That will drive people back to using dinars and really promote the change in value so they can reduce the face value of their bills by printing new lower denominations. Then people will be dying to use bank accounts instead of waiting for lower denominations. That's how you force change.
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