Study Welsch (2002a): study ZZ 1990
- Public:
- Adults, general public, 54 nations, 1990s
- Sample:
- Respondents:
- N = 75000
- Non Response:
- n.a.
- Assessment:
- Interview: face-to-face
Correlate
- Authors's label
- Water pollutants
- Our Classification
-
-
- Operationalization
- In Mg/liter water:
a Phosphorus
b Solids (suspended solids in water bodies)
Observed Relation with Happiness
B's are controled for:
- income per head
- number of scientist & engineers per thousand population
B's remain the same when additionaly controled for:
- air pollutants (sulphur dioxide, nitrogen dioxide, particles)
- the other water pollutant
- B's are negative
- B's are insignificant
Water pollutants do not significantly correlate with lower average happiness