1. Bundesamt für Statistik. Gesundheitsausgaben. Wiesbaden; 2016.
2. Bünnings C, Schmitz H, Tauchmann H, Ziebarth NR. How health plan enrollees value prices relative to supplemental benefits and service quality. SOEP-papers 714-2015; 2015.
3. Does price framing affect the consumer price sensitivity of health plan choice?;Schmitz;Journal of Human Resources,2017
4. Direct risk selection in the German health insurance system: a field experiment (unpublished manuscript);Brosse,2016
5. Bundesamt für Statistik. Kostenstruktur bei Arztpraxen 2011. Wiesbaden; 2013.