https://www.economiesuisse.ch/de/artikel/die-praemien-sind-zu-35-prozent-einkommensabhaengig
https://conservativereader.substack.com/p/francois-valentin-we-are-under-threat
http://www.oecd.org/els/soc/Risks-That-Matter-2018-Main-Findings.pdf
http://www.oxfamfrance.org/sites/default/files/file_attachments/vfrapport_oxfam_cac40_des_profits_sans_partage.pdf