- 18+ aged, general public, The Netherlands, 1974-1983
- N = 4000
- Non Response:
- 1974: 28%, 1983: 43%
- Interview: face-to-face
- Authors's label
- Income level
- Our Classification
- Logarythms of 6 class-middles from the net householdincome.
Observed Relation with Happiness
ß controlled for sex and age.
Results 1974 not significantly different.