In the beginning, we will look at the Eurozone currency. Is Eurozone an optimal currency area? In 1979, the European Monetary Systems was launched when European Community fixed their currencies exchange rates around to European Currency Unit. After that time, there are many debates about whether or not the Eurozone is an optimal currency area. Optimal currency area is “the geographic area in which a single currency would create the greatest economic benefit”. A certain area has to qualify some criteria to be able to identify as optimal currency area. Those criteria are: labor mobility, price and wage flexibility, financial market integration, economic openness and similarity in inflation rates. There are several study have been made to examine the Eurozone currency. Eurozone is not an optimal currency area since it is not fulfill all of the criteria. Even though it may have many characteristics of an optimal currency area.
Robert Mundell pointed out that “ an essential ingredient of a currency area