Fujian bitcoin quantitative trading platform
explanation
"bad money expels good money" means that when a country circulates two kinds of money with different real value but unchanged legal price at the same time, the money with high real value (good money) is bound to be melted, collected or exported and withdraw from the circulation field, while the money with low real value (bad money) fills the market instead
for example
in the 16th century England, precious metals were not enough for coinage, so other metals had to be added to the newly minted coins. Therefore, there were two kinds of currencies in the market at that time, one was the currency without impurities, the other was the currency added to other metals. Although the legal value of the two currencies is equal, people can identify them, store the money without impurities, and trade the money with impurities. Therefore, the good money on the market is graally stored and reced circulation, leaving only the bad money in the market Good money here refers to money without impurities.)