Talk:Currency/@comment-77.98.238.169-20180811195640/@comment-45.56.46.26-20180811211543

Because it is historically common for the alloy and standard weight of coinage to differ among different nations, and while measures to ensure coins are not shaved or counterfeited with altered weight and alloy tend to be contemporary, there are practical differences.

Thus a country that tries to expand the money supply by resorting to low-purity alloy or shorting the weight of coins, or which rely on currency which is easily and commonly counterfeited or shaved, will see it's exchange value drop.