- 18+ aged, general public, 78 nations, 1991-2001
- N = 100000
- Non Response:
- Interview: face-to-face
- Authors's label
- Income inequality
- Our Classification
- Income share richest 20% versus poorest 20%.
Observed Relation with Happiness
Remark: Inequality in happiness (SD) by income inequality: r = +.24, meaning that more income inequality goes with more happiness inequality.