Editing Central bank (section)

===Supranational central banks===
[[File:Frankfurt EZB.Nordwest-2.20141228.jpg|thumb|The [[European Central Bank]]'s main building in [[Frankfurt]]]]

In the second half of the 20th century, the dismantling of colonial systems left some groups of countries using the same currency even though they had achieved national independence. In contrast to the unraveling of [[Austria-Hungary]] and the [[Ottoman Empire]] after [[World War I]], some of these countries decided to keep using a common currency, thus forming a [[monetary union]], and to entrust its management to a common central bank. Examples include the [[Eastern Caribbean Currency Authority]], the [[Central Bank of West African States]], and the [[Bank of Central African States]].

The concept of supranational central banking took a globally significant dimension with the [[Economic and Monetary Union of the European Union|Economic and Monetary Union]] of the [[European Union]] and the establishment of the [[European Central Bank]] (ECB) in 1998. In 2014, the ECB took an additional role of banking supervision as part of the newly established policy of [[European banking union]].