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Correlational findings

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

Happiness Measure Statistics Elaboration / Remarks O-HL-u-sq-v-4-a = Average happiness by water pollutants in 54 nations. O-HL-u-sq-v-4-a b = -.06 ns Phosphorus (-.062) O-HL-u-sq-v-4-a b = +.01 ns Solids (+.008)

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
O-HL-u-sq-v-4-a b = - ns When instead the logarithm of happiness is regressed on the logarithm of the water pollutant:
- B's are negative
- B's are insignificant

Water pollutants do not significantly correlate with lower average happiness