n.
1.(economics) the principle that when two kinds of money having the same denominational value are in circulation the intrinsically more valuable money will be hoarded and the money of lower intrinsic value will circulate more freely until the intrinsically more valuable money is driven out of circulation
Idiom of the Day
run (someone) out or run out (someone)
to force someone to leave, to expel someone
The police ran the drug dealers out of town.