- 18+ aged, general public, 78 nations, 1991-2001
- N = 100000
- Non Response:
- Interview: face-to-face
- Authors's label
- Inequality of happininess in nations
- Our Classification
- Standard deviation of responses to single question on happiness in nations:
All things considered, how satisfied are you with your life as-a-whole these days?
Observed Relation with Happiness
Meaning: higher average of happiness goes with lower inequality in happiness (SD).