Columbia subject headings:
Harvard subject headings:
Europe, Central--Economic conditions--21st century.
Europe, Central--Economic policy.
Europe, Eastern--Economic conditions--21st century.
Europe, Eastern--Economic policy.
Europe--Economic integration.
European Union--Membership.
Princeton subject headings:
Europe, Central--Economic integration.
Europe, Eastern--Economic integration.
Europe--Economic integration.
European Union--Europe, Central.
European Union--Europe, Eastern.