Correlational finding on Happiness and subject: Current age (in years)

StudyAkay (2012): study DE 1985
TitleHappy Taxpayers? Income Taxation and Well-Being.
SourceDiscussion Paper, 2012, Nr. 6999, Institute for the Study of Labor (IZA), Bonn
URLhttp://hdl.handle.net/10419/67179
Public16-65 aged, taxpayers, Germany, 1985-2010
SampleProbability stratified sample
Non-Response
Respondents N =188412

Correlate
Author's labelAge squared
Page in Source 26-29
Our classificationCurrent age (in years)
Operationalization
Age squared in years
Observed distribution=41.06; SD= 11.0; age range: 17-99

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-SLW-c-sq-n-11-db=+.00 p < .01
b and b-iv controlled for:
- log taxes
- working hours
- age squared
- region east germany
- foreigner
- household size
- employment status
- gender
- marital status
- health

b-iv, lagged tax and income tax only produces 
similar results.


Appendix 1: Happiness measures used
CodeFull Text
O-SLW-c-sq-n-11-dSelfreport on single question:

Taking all things together, how satisfied are you with your life these days? Please answer with the help of this scale. For instance, when you are totally satisfied with your life, please tick '10'. When you are totally unsatisfied with your life, please tick '0'. You may use all values in between to indicate that you are neither totally satisfied nor totally unsatisfied."
10 totally satisfied
9
8
7
6
5
4
3
2
1
0 totally unsatisfied


Appendix 2: Statistics used
SymbolExplanation
bREGRESSION COEFFICIENT (non-standardized) by LEAST SQUARES (OLS)
Type: test statistic
Measurement level: Correlate: metric, Happiness: metric
Theoretical range: unlimited

Meaning:
b > 0 A higher correlate level corresponds with a higher happiness rating on average.
B < 0 A higher correlate level corresponds with a lower happiness rating on average.
B = 0 Not any correlation with the relevant correlate.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl