Correlational finding on Happiness and Current age (in years)
Subject code: A04ab

StudyNiimi (2018): study JP 2013
TitleWhat Affects Happiness Inequality? Evidence from Japan.
SourceJournal of Happiness Studies, 2018, Vol. 19, 521 - 543
URLhttps://doi .org/l 0.1007 /s10902-016-9835-9
Public20-69 aged, general public, Japan, 2013
SampleProbability stratified sample
Non-Response
Respondents N =3257

Correlate
Author's labelAge and age squared
Page in Source 527-528,531-535
Our classificationCurrent age (in years), code A04ab
Operationalization
Age in years
Observed distributionM=52.95; sd=12.49

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
D-LS-c-sq-n--ab-rif=+.18 p < .01
AGE

b-rif controlled for:
- gender
- marital status
- education
- poor health
- having a child
- household size
- household income
- homeownership
- has loans
- unemployed
- not in labor force
- altruistic
- risk lover
- low time preference
- major city

No significant effect when additionally 
controlling for:
- irregular job
- likely unemployed
- public pensions
- relatively poor
- relatively rich
D-LS-c-sq-n--ab-rif=-.00 p < .01
AGE SQUARED

b-rif= -.002

b-rif controlled for:
- gender
- marital status
- education
- poor health
- having a child
- household size
- household income
- homeownership
- has loans
- unemployed
- not in labor force
- altruistic
- risk lover
- low time preference
- major city

No significant effect when additionally 
controlling for:
- irregular job
- likely unemployed
- public pensions
- relatively poor
- relatively rich


Appendix 1: Happiness measures used
CodeFull Text
D-LS-c-sq-n--aStandard deviation of 0-10 score on single question "overall, how happy would you say you are currently?"


Appendix 2: Statistics used
SymbolExplanation
b-rifLeast square regression coefficient in RIF-regression, where the dependent variable is th influence on a distributionakl statistic (f.e. variance, GINI)
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl