A problem similar to inflation. The money will hold its strength internationally because the amount hasn't changed, but businesses in the country may raise the price of goods and services because it's reasonable to expect that a population of millionaires can afford a price hike.
(Or maybe not. My friend's the economist, not me. I'm just guessing that if there were to be a problem, it would be this.)
(Or maybe not. My friend's the economist, not me. I'm just guessing that if there were to be a problem, it would be this.)