Study Bjornskov (2006): study ZZ 1990

Public:

18+ aged, general public, 80 nations, 1990-2001

Sample:

Respondents:

N = 800000

Non Response:

Assessment:

Interview: face-to-face

Correlate

Authors's Label

Trade openness

Our Classification

Remarks

Source: Penn World Tables.

Distribution

N = 81 M = 87,2 Range: 18,2 to 326,2  SD =  55,86

Operationalization

Trade-volume as % of GDP

Observed Relation with Happiness