https://www.socialeurope.eu/2017/06/world-imbalances-decline-wages/
https://www.socialeurope.eu/2017/06/answer-wages-not-capital/
https://wiiw.ac.at/the-labour-market-entry-and-integration-of-refugees-and-other-migrants-in-austria-dlp-6700.pdf
http://ftp.iza.org/dp11249.pdf