Study Mellander et al. (2011): study ZZ 2009

Public:

15+ aged, 66 nations, 2009

Survey name:

INT-GallupWorldPoll2009

Sample:

Respondents:

N = 1000

Non Response:

Assessment:

Interview: telephone (CATI)
Interview: face to face in other countries

Correlate

Authors's Label

GDP per capita

Our Classification

Distribution

Cutoff low-/high-income US $11.000;
rich N = 23, poor N= 43.

Operationalization

Observed Relation with Happiness