Study Welsch (2002a): study ZZ 1991
- 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 quality
- Our Classification
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-
- Remarks
- Data water quality from Global Environmental Monitoring System (United Nations Environment Programme)
- Distribution
- M=2.25 SD=0,70 Range=0-4,10 N=122
- Operationalization
- Aggregate indicator of:
- dissolved oxygen concentration
- phosphorus concentration
- suspended solids
- electrical conductivity river basins
Positive values correspond to high levels of water quality.
Observed Relation with Happiness
- Gross National Product per head
- scientific rationality of nations
- product (interaction-term) Water Quality and Gross National Product
- Gross National Product positive and insignificant
- Dummy variable OECD country positive and significant
Water quality contributes more with happiness in OECD countries (compared to non-OECD countries) and in rich countries (compared to poor countries)