Nesterko, Yuriy
Turrión, Carmen Meiwes
Friedrich, Michael
Glaesmer, Heide
Article History
Received: 13 December 2017
Revised: 7 May 2018
Accepted: 9 May 2018
First Online: 8 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: As our study has involved only a secondary analysis of anonymized data, an ethics approval was not required. Detailed information on ethical clearance and informed consent given by the participants can be found on Research Infrastructure “Socio-Economic Panel (SOEP) via internet (ExternalRef removed).