Euro

The Euro is a flexible currency used by the European Union. It was created in 1999, and as of 2013, covers 22 independent nation states. The Euro is unique from the dollar in that each country using the currency has it's own bond market and, as a result, fiscal policy. Euros, in paper form, indicate which country is issuing the note. For example, a Euro from Portugal will say, "Bank of Portugal", or something like that. So although there is a one-for-one comparison when exchanging Euros for Euros, individuals exchanging Euros may experience unequal inflation/tax burdens.

The Federal Reserve of the United States publishes monetary matters on their Economic Research website. The European Union does the same.