Classification of countries according to the United Nations:
Very high human development (0.800 or higher)
High human development (0.700 - 0.799)
Classification of countries according to the World Bank:
high income (> $14,005)
upper middle income ($4,516 - $14,005)
Classification of countries according to the IMF:
Advanced Economies
Emerging Market and Developing Economies
1 These countries are currently not participating in the EU's single market (EEA), but the EU has common external Customs Union agreements with Turkey (EU-Turkey Customs Union in force since 1995), Andorra (since 1991) and San Marino (since 2002). Monaco participates in the EU customs union through its relationship with France; its ports are administered by the French. Vatican City has a customs union in effect with Italy. 2 Andorra, Monaco, San Marino and Vatican City are not members of Schengen, but act as such via their open borders with Spain, France and Italy, respectively. 3 Switzerland is not an official member of EEA but has bilateral agreements largely with the same content, making it virtually a member. 4 Andorra, Monaco, San Marino and Vatican City are using the euro as their currency through a monetary agreement with the EU. 5 Montenegro and Kosovo unilaterally adopted the euro as their currency and, therefore, have no issuing rights. 6 Currency included in the ERM II mechanism. 7 Air and maritime borders only.
Gross National Income, List of countries by GNI per capita World Development Indicators database , World Bank,
GNI per capita 2021, Atlas method and PPP; Country classification - low
income ($1,086 or less), upper middle income ($4,256 to $13,205), high income ($13,205 or more)
OSCE is an international organization which serves as a forum for political dialogue. Its stated aim is to secure stability in the region (Caucasus, Central Asia, Europe, North America and Russia) based on democratic practices and improved governance
OECD is an international organization which serves as a forum for economic dialogue. The bulk of its members are in Europe (23), but some are located in other regions (7) - Members states