Columbia subject headings:
Harvard subject headings:
Competition
Migrant labor--Europe--21st century.
Migrant labor--Government policy--France--21st century.
Migrant labor--Government policy--Germany--21st century.
Skilled labor--Government policy--France--21st century.
Skilled labor--Government policy--Germany--21st century.
Princeton subject headings:
Competition.
Migrant labor--Europe--21st century.
Migrant labor--Government policy--France--21st century.
Migrant labor--Government policy--Germany--21st century.
Skilled labor--Government policy--France--21st century.
Skilled labor--Government policy--Germany--21st century.