Study Radcliff (2005): study ZZ 1990

Public:

15+ aged, general public, 17 developed nations, 1990

Survey name:

EU-Eurobarometer 03

Sample:

Respondents:

N = 17000

Non Response:

Assessment:

Interview: face-to-face

Correlate

Authors's label

Union density

Our Classification

Operationalization

% organized employees in labor-force

Observed Relation with Happiness