“…The establishment of the European Economic Community (EEC) in 1957 achieved the market integration of six countries (France, Germany, Italy, Belgium, The Netherlands, and Luxembourg), which greatly promoted trades and investments among member countries. At that time, the goal of regional integration was to remove barriers to free trade in that region, promoting the free flow of people, labor, goods, and capital [8], which is still the goal that many regions of the world are struggling for in their regional integration [9][10][11][12]. The official establishment of the EU in 1993 and the issuance of euro banknotes and coins in 2002 made that the goal of regional integration, in addition to eliminating trade barriers, was to achieve economic policy reunification.…”