Funding for this research was provided by:
Bundesministerium für Arbeit und Soziales
Article History
First Online: 10 May 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study were in accordance with the code of ethics of the German Sociological Association and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individuals participating in the qualitative interviews. Since administrative data refers to social security data, formal individual consent is not required.