Study Veenhoven (2005): study ZZ 1990
- Public:
- Adults, general public, 67 nations, 1990s
- Sample:
- Respondents:
- N = 100000
- Non Response:
- Assessment:
- Interview: face-to-face
Correlate
- Authors's label
- Purchasing power per head
- Our Classification
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-
- Operationalization
- 'Real' GNP (actual buying power) per capita