Study Diener et al. (2012a): study ZZ World samples 2005

Public

15+ aged general public, 135 nation followed at least 3 years, 2005-2011

Survey name

INT-Gallup World Poll combined waves

Sample

Respondents

N = 806526

Non Response

Assessment

Multiple assesment methods
telephone interviews in developed nations, face-toface in most developing nations

Correlate

Authors's Label

Individual household income

Our Classification

Related specification variables

Operationalization

Self reported household income

Observed Relation with Happiness