Study Dingemans & Henkens (2015): study NL 2001
- Public
 - 50+ aged, Netherlands, followed before and after retirement, 2001-2011
 - Survey name
 - NL-NIDI work and retirement panel
 - Sample
 - Respondents
 - N = 4419
 - Non Response
 - Assessment
 - 
        Questionnaire: Paper & Pencil Interview (PAPI)                    
T1: 2001, T2: 2006/7, T3: 2011 
Correlate
- Authors's Label
 - Health problems
 - Our Classification
 - 
            
 - 
                        
 - Distribution
 - T1: 30%, T2 28%, T3 30%
 - Operationalization
 - Selfreport on whether the respondent had to deal with long-term health problems or not.:
1: yes
0: no 
Observed Relation with Happiness
b-fix controlled for T1-T3 CHANGE in:
- age
- living with partner
- personal monthly income
- perceived self-efficacy
- combined effects on retirement decision and bridge employment
Happiness assessed at
T1: 2001
T2: 2006/7
T3: 2011
Most repondents retired in this period