Study Helliwell et al. (2016): study ZZ 2012

Public:

15+ aged, general public, 156 nations, 2005-2015

Survey name:

GallupWorldPoll2016

Sample:

Respondents:

N = 1560000

Non Response:

Assessment:

Multiple methods

Correlate

Authors's label

Perceptions of corruption

Our Classification

Operationalization

Selfreport on 2 questions:
a. Is corruption widespread throughout the government or not?
b. Is corruption widespread within businesses or not?
1:  yes
0:  no

Observed Relation with Happiness