https://en.wikipedia.org/wiki/Gresham%27s_law https://en.wikipedia.org/wiki/Gresham%27s_law "When a government compulsorily overvalues one type of money and un

https://en.wikipedia.org/wiki/Gresham%27s_law https://en.wikipedia.org/wiki/Gresham%27s_law "When a government compulsorily overvalues one type of money and undervalues another, the undervalued money will leave the country or disappear from circulation into hoards, while the overvalued money will flood into circulation." Or in other words (from the same article): "Bad money drives out good if their exchange rate is set by law."