- Social mobility--Europe--History (2)
- Social mobility--United States--History (2)
- Income distribution--Australia--History (1)
- Income distribution--Europe--History (1)
- Income distribution--United States--History (1)
- Occupational mobility--Europe--History (1)
- Occupational mobility--United States--History (1)
- ヨーロッパ--歴史--1945- (1)
- ヨーロッパ--社会 (1)
- ヨーロッパ--社会--歴史--1945〜 (1)