Ebenen der europäischen Wirtschaftsintegration

There’s more blue yhan even this map would suggest. Switzerland participates in the European single market too and is part of the Schengen Area. They are not, however, party to the European Union Customs Union so they are not in the EEA.

Montenegro and Kosovo use the euro unilaterally (without official monetary agreement).

Switzerland, Norway, Iceland and Lichtenstein are part of the EFTA